51
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Abstract
We report the molecular cloning and characterization of two secretory proteins specifically expressed in vomeronasal and posterior glands of the nasal septum, the ducts of which open into the lumen of the vomeronasal organ. These two proteins are members of the lipocalin superfamily, consisting of hydrophobic ligand carriers. We immunohistochemically localized one of the proteins in the mucus covering the vomeronasal sensory epithelium, where the primary reception of pheromone takes place. The immunoreactivity on the vomeronasal sensory epithelium was evident in the neonatal and post-pubertal periods, when the close contact between animals plays critical roles in suckling and sexual behaviors, respectively. These results suggest that small lipophilic molecules stimulate the accessory olfactory system to regulate the reproductive behavior of mice.
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Affiliation(s)
- A Miyawaki
- Department of Molecular Neurobiology, University of Tokyo, Japan
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52
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Sugiyama T, Furuya A, Monkawa T, Yamamoto-Hino M, Satoh S, Ohmori K, Miyawaki A, Hanai N, Mikoshiba K, Hasegawa M. Monoclonal antibodies distinctively recognizing the subtypes of inositol 1,4,5-trisphosphate receptor: application to the studies on inflammatory cells. FEBS Lett 1994; 354:149-54. [PMID: 7957915 DOI: 10.1016/0014-5793(94)01099-4] [Citation(s) in RCA: 79] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Monoclonal antibodies were raised that specifically recognize the COOH-terminal sequences and the loop sequences between the fifth and the sixth transmembrane spanning regions of human inositol 1,4,5-trisphosphate receptor (IP3R) type 1, 2 and 3. Western blot analysis using Jurkat cells, mouse cerebellum, COS-7 expressing IP3R type 3 cDNA showed that those monoclonal antibodies reacted specifically with each of these three IP3R subtypes and that they do not cross-react. These antibodies could be used for the specific immunoprecipitation of IP3Rs. Using these monoclonal antibodies, the expression profiles of IP3R-subtype proteins were found to be different among inflammatory cells such as macrophages, polymorphonuclear cells, mast cells, eosinophils, splenocytes, thymocytes and megakaryocytic cells. Usually, more than one type of IP3R were expressed in a cell simultaneously. The observation of CMK cells under immunofluorescence confocal microscopy revealed that IP3R type 1 and type 2 are located at different subcellular fractions.
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Affiliation(s)
- T Sugiyama
- Tokyo Research Laboratories, Kyowa Hakko Kogyo Co., Ltd., Japan
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53
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Yamada N, Makino Y, Clark RA, Pearson DW, Mattei MG, Guénet JL, Ohama E, Fujino I, Miyawaki A, Furuichi T. Human inositol 1,4,5-trisphosphate type-1 receptor, InsP3R1: structure, function, regulation of expression and chromosomal localization. Biochem J 1994; 302 ( Pt 3):781-90. [PMID: 7945203 PMCID: PMC1137299 DOI: 10.1042/bj3020781] [Citation(s) in RCA: 96] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
We have isolated cDNA clones encoding an inositol 1,4,5-trisphosphate receptor type 1 (InsP3R1) from human uteri and a leukaemic cell line, HL-60. Northern-blot analysis showed that approx. 10 kb of InsP3R1 mRNA is expressed in human uteri, oviducts and HL-60 cells. The predicted amino acid sequence of human InsP3R1 (2695 amino acids) has 99% identity with that of the mouse SI-/SII- splicing counterpart. Western-blot analysis with anti-(mouse InsP3R1) antibodies showed that InsP3R1 protein of human uteri and oviducts of approx 220 kDa is immunostained. Northern-blot analysis of HL-60 cell differentiation along the neutrophilic lineage induced by retinoic acid or dimethylsulphoxide showed an accompanying enhanced expression of InsP3R1 mRNA. Immunohistochemical analysis of the cerebella of spinocerebellar degeneration patients showed a variable loss of Purkinje cells with an altered pattern of immunostaining. The InsP3R1 gene (Insp3r1) was localized to the 3P25-26 region of human chromosome 3. The data presented here clearly show that InsP3R1 exists widely in human tissues and may play critical roles in various kinds of cellular functions.
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MESH Headings
- Adult
- Aged
- Amino Acid Sequence
- Animals
- Calcium Channels/chemistry
- Calcium Channels/genetics
- Calcium Channels/metabolism
- Cell Differentiation/genetics
- Cerebellum/metabolism
- Chromosome Mapping
- Chromosomes, Human, Pair 3
- Dimethyl Sulfoxide/pharmacology
- Fallopian Tubes/metabolism
- Female
- Humans
- Inositol 1,4,5-Trisphosphate/metabolism
- Inositol 1,4,5-Trisphosphate Receptors
- Mice
- Middle Aged
- Molecular Sequence Data
- Molecular Weight
- RNA Splicing
- Receptors, Cytoplasmic and Nuclear/chemistry
- Receptors, Cytoplasmic and Nuclear/genetics
- Receptors, Cytoplasmic and Nuclear/metabolism
- Sequence Alignment
- Spinocerebellar Degenerations/genetics
- Spinocerebellar Degenerations/metabolism
- Tretinoin/pharmacology
- Tumor Cells, Cultured
- Uterus/metabolism
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Affiliation(s)
- N Yamada
- Department of Molecular Neurobiology, University of Tokyo, Japan
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54
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Abstract
The glandular odontogenic cyst (GOC) is a rare odontogenic cyst which is still controversial in regard to classification, terminology, and origin. The first Japanese case of GOC is reported. Immunohistochemical examination for expression of cytokeratins and epithelial membrane antigen by monoclonal antibodies suggested that the lining epithelium was of odontogenic origin with metaplastic mucus-laden cells. We have reviewed the literature and compared the clinicopathological findings of the reported case of GOC with those of botryoid odontogenic cysts (BOC). The anatomical location, age range, and sex of GOC cases were very similar to those of BOC. GOC appears to be a multiocular and mucoepidermoid variant of non-keratinizing odontogenic cysts, which also includes BOC. GOC should be separated from the other types of odontogenic cyst and central mucoepidermoid tumours of salivary gland origin.
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Affiliation(s)
- I Semba
- Department of Oral Pathology, Kagoshima University Dental School, Japan
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55
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Sugiyama T, Yamamoto-Hino M, Miyawaki A, Furuichi T, Mikoshiba K, Hasegawa M. Subtypes of inositol 1,4,5-trisphosphate receptor in human hematopoietic cell lines: dynamic aspects of their cell-type specific expression. FEBS Lett 1994; 349:191-6. [PMID: 8050564 DOI: 10.1016/0014-5793(94)00662-8] [Citation(s) in RCA: 51] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Inositol 1,4,5-trisphosphate (IP3)-mediated Ca2+ signaling plays important roles in cellular responses to extracellular stimuli. We recently succeeded in cloning human counterparts of the three subtypes derived from separate genes. Using the cDNA sequences type-specific to these subtype receptors, we here analyzed the expression profile of IP3R subtypes in stimulated and unstimulated human hematopoietic cell lines representing T cells, B cells, neutrophils, macrophages, erythrocytes and megakaryocytes. Northern and dot blot analysis showed that each IP3R subtype is expressed differently in these cells and that the expression profile in each cell is dynamically changed upon stimuli which induce differentiation. Moreover, most of these cells were found to simultaneously express at least two different subtype receptors.
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Affiliation(s)
- T Sugiyama
- Tokyo Research Laboratories, Kyowa Hakko Kogyo Co., Japan
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56
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Abstract
The molecular, structural and functional characteristics of the intracellular Ca2+ release channel activated by inositol 1,4,5-trisphosphate (IP3), also named IP3 receptor (IP3R), are described here. We also discuss the differences in primary structure, expression and modulation of the receptor subtypes and their physiological roles. The similarity and differences between the IP3R and the other intracellular Ca2+ channel, the ryanodine receptor, are briefly presented.
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Affiliation(s)
- K Mikoshiba
- Department of Molecular Neurobiology, University of Tokyo, Minato-ku, Japan
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57
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Abstract
Intracellular channels are located on the membranes of intracellular organelles and are involved in ion transfer, within the cytosolic compartments, in response to internal stimuli. Recently, various types of inositol 1,4,5-trisphosphate- and ryanodine-sensitive Ca(2+)-release channels, mitochondrial voltage-dependent anion channels, and a vesicular Cl- channel have been molecularly cloned and characterized, and their functional roles in the central nervous system are beginning to be clarified.
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Affiliation(s)
- T Furuichi
- Department of Molecular Neurobiology, University of Tokyo, Japan
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58
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Michikawa T, Hamanaka H, Otsu H, Yamamoto A, Miyawaki A, Furuichi T, Tashiro Y, Mikoshiba K. Transmembrane topology and sites of N-glycosylation of inositol 1,4,5-trisphosphate receptor. J Biol Chem 1994; 269:9184-9. [PMID: 8132655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
To define the transmembrane topology of the inositol 1,4,5-trisphosphate receptor (InsP3R), we determined the subcellular location of the hydrophilic segment (residues 2463-2529 of mouse type 1 InsP3R) believed to be located at the luminal side of the endoplasmic reticulum (ER) in the six-transmembrane model but at the cytoplasmic side in the eight-transmembrane model. This hydrophilic segment includes two consensus sites for N-glycosylation (Asn-2475 and Asn-2503). We prepared an anti-peptide antibody against residues 2504-2523. Electron microscope immunocytochemical studies of mouse cerebellar Purkinje cells showed that binding of this antibody frequently occurs in the intracisternal space of the ER. We constructed three mutant receptors by site-directed mutagenesis of Asn to Gln (N2475Q, N2503Q, and N2475Q/N2503Q). By concanavalin A column chromatography of these receptors, we found that both Asn-2475 and Asn-2503 are glycosylated. These results indicate that residues 2504-2523, Asn-2475, and Asn-2503 are exposed to the ER lumen. We therefore propose that InsP3R has six membrane-spanning segments. Based on the transmembrane topology and subunit organization, we suggest that InsP3R is a member of the superfamily that includes the voltage- and second messenger-gated ion channels on the plasma membrane.
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Affiliation(s)
- T Michikawa
- Department of Molecular Neurobiology, University of Tokyo, Japan
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59
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Kawasaki M, Uchida S, Monkawa T, Miyawaki A, Mikoshiba K, Marumo F, Sasaki S. Cloning and expression of a protein kinase C-regulated chloride channel abundantly expressed in rat brain neuronal cells. Neuron 1994; 12:597-604. [PMID: 8155321 DOI: 10.1016/0896-6273(94)90215-1] [Citation(s) in RCA: 189] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
cDNA (CIC-3) encoding a protein kinase C-regulated chloride channel was cloned and characterized. The open reading frame encodes 760 amino acids, which possess significantly amino acid identity with previously cloned CIC chloride channels. The chloride currents expressed in Xenopus oocytes injected with CIC-3 cRNA were completely blocked by activation of protein kinase C by 12-O-tetradecanoylphorbol 13-acetate. Abundant expression of CIC-3 mRNA was observed in rat brain, especially in the olfactory bulb, hippocampus, and cerebellum. These findings suggest that CIC-3 may play an important role in neuronal cell function through regulation of membrane excitability by protein kinase C.
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Affiliation(s)
- M Kawasaki
- Second Department of Internal Medicine, Tokyo Medical and Dental University, School of Medicine, Japan
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60
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Mikoshiba K, Furuichi T, Miyawaki A, Yoshikawa S, Nakade S, Michikawa T, Nakagawa T, Okano H, Kume S, Muto A. Structure and function of inositol 1,4,5-trisphosphate receptor. Ann N Y Acad Sci 1993; 707:178-97. [PMID: 9137552 DOI: 10.1111/j.1749-6632.1993.tb38052.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
MESH Headings
- Amino Acid Sequence
- Animals
- Brain/physiology
- Calcium Channels/biosynthesis
- Calcium Channels/chemistry
- Calcium Channels/physiology
- Cerebellum/physiology
- Female
- Inositol 1,4,5-Trisphosphate/physiology
- Inositol 1,4,5-Trisphosphate Receptors
- Male
- Mice
- Mice, Neurologic Mutants
- Models, Biological
- Molecular Sequence Data
- Oocytes/physiology
- Organ Specificity
- Protein Structure, Secondary
- Receptors, Cytoplasmic and Nuclear/biosynthesis
- Receptors, Cytoplasmic and Nuclear/chemistry
- Receptors, Cytoplasmic and Nuclear/physiology
- Signal Transduction
- Xenopus laevis
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Affiliation(s)
- K Mikoshiba
- Department of Molecular Neurobiology, University of Tokyo, Japan
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61
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Ryo Y, Miyawaki A, Furuichi T, Mikoshiba K. Immunohistochemical localization of metabotropic and ionotropic glutamate receptors in the mouse brain. Ann N Y Acad Sci 1993; 707:554-6. [PMID: 9137619 DOI: 10.1111/j.1749-6632.1993.tb38124.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Y Ryo
- Department of Molecular Neurobiology, Institute of Medical Science, University of Tokyo, Japan
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62
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Ryo Y, Miyawaki A, Furuichi T, Mikoshiba K. Expression of the metabotropic glutamate receptor mGluR1 alpha and the ionotropic glutamate receptor GluR1 in the brain during the postnatal development of normal mouse and in the cerebellum from mutant mice. J Neurosci Res 1993; 36:19-32. [PMID: 8230318 DOI: 10.1002/jnr.490360104] [Citation(s) in RCA: 76] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Expression of the metabotropic glutamate receptor type 1 alpha (mGluR1 alpha) and the non-N-methyl-D-aspartate (NMDA) ionotropic glutamate receptor type 1 (GluR1) in mouse brain was investigated using the antibodies raised against the synthetic peptides corresponding to their C-terminal amino acid sequences. Both receptor proteins are glycosylated predominantly in an asparagine-linked manner, and are abundant in post-synaptic membranes. We showed that mGluR1 alpha and GluR1 expression within the first 3 postnatal weeks undergoes dramatic changes in time and space, i.e., in the hippocampus and cerebellum. These spatio-temporal expression patterns appear to be correlated with the postnatal ontogenesis and establishment of the glutamatergic neurotransmission system in the hippocampus and cerebellum, cell migration, dendritic and axonal growth, spine formation, and synaptogenesis. In the adult cerebellum, mGluR1 alpha is intensely expressed in Purkinje neurons and GluR1 in Bergmann glial cells. Both receptors are expressed to a fair degree in weaver mutant cerebellum despite granule cell degeneration. However, the intrinsic expression levels of both mGluR1 alpha and GluR1 are markedly reduced in the cerebellum of the Purkinje cell-deficient and underdeveloped mutant mice, Purkinje-cell-degeneration, Lurcher, and staggerer, suggesting that GluR1 expression in Bergmann glia cells may be correlated with the sustained interaction with adjacent Purkinje neurons.
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Affiliation(s)
- Y Ryo
- Department of Molecular Neurobiology, University of Tokyo, Japan
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63
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Mikoshiba K, Furuichi T, Miyawaki A, Yoshikawa S, Nakagawa T, Yamada N, Hamanaka Y, Fujino I, Michikawa T, Ryo Y. Inositol trisphosphate receptor and Ca2+ signalling. Philos Trans R Soc Lond B Biol Sci 1993; 340:345-9. [PMID: 8103938 DOI: 10.1098/rstb.1993.0077] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Inositol 1,4,5-trisphosphate (InsP3) is a second messenger that releases Ca2+ from the intracellular stores. The InsP3 receptor (InsP3-R) was purified and its cDNA was cloned. We have found that InsP3-R is identical to the P400 protein identified as a protein enriched in the cerebellar Purkinje cells. We generated an L fibroblast cell transfectant that produced cDNA derived InsP3-R. The expressed protein displays high affinity and specificity for InsP3. InsP3 induces Ca2+ release from the membrane vesicles of the transfected cells. Incorporation of purified InsP3-R into a lipid bilayer showed InsP3 induced Ca2+ release. These result suggest that InsP3-R is a Ca2+ release channel. Immunogold method using monoclonal antibodies against the receptor showed that it is highly condensed on the smooth surfaced endoplasmic reticulum (ER) and slightly on the outer nuclear membrane and rough ER. Cross linking experiments show that the InsP3-R forms a homotetramer. The approximately 650 N-terminal amino acids are highly conserved between mouse and Drosophila melanogaster, and this region has the critical sequences for InsP3 binding. We found novel subtypes of the InsP3-R resulting from RNA-splicing that are expressed in a tissue-specific and developmentally specific manner and also resulting from different genes. It is believed that there are two Ca2+ release mechanisms, InsP3-induced Ca2+ release (IICR) and Ca(2+)-induced Ca2+ release (CICR). Eggs are good materials to analyse the machanism of Ca2+ signalling: fertilized hamster eggs exhibit repetitive Ca2+ transients as well as the Ca2+ wave.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- K Mikoshiba
- Department of Molecular Neurobiology, University of Tokyo, Japan
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64
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Furuichi T, Simon-Chazottes D, Fujino I, Yamada N, Hasegawa M, Miyawaki A, Yoshikawa S, Guénet JL, Mikoshiba K. Widespread expression of inositol 1,4,5-trisphosphate receptor type 1 gene (Insp3r1) in the mouse central nervous system. Recept Channels 1993; 1:11-24. [PMID: 8081710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
The expression of inositol 1,4,5-trisphosphate receptor type 1 (InsP3R1) in the mouse central nervous system (CNS) was studied by in situ hybridization. The receptor mRNAs were widely localized throughout the CNS, predominantly in the olfactory tubercle, cerebral cortex, CA1 pyramidal cell layer of the hippocampus, caudate putamen, and cerebellar Purkinje cells, where phosphoinositide turnover is known to be stimulated by various neurotransmitter receptors. In the most abundantly expressing Purkinje cells, InsP3R1 mRNA appeared to be translocated to the distal dendrites, since a strong hybridization density was observed in the molecular layer of the cerebellum. InsP3R protein is known to form tetrameric receptor-channel complex. Our preliminary hybridization data using probes for three distinct InsP3R subtypes showed preferential expression of InsP3R1 in many parts of the CNS. The expression of other receptor subtypes (InsP3R2 and InsP3R3) is less efficient, suggesting that a homotetramer formed of InsP3R1 subtype may play a central part in InsP3/Ca2+ signalling in the neuronal function, whereas a homotetramer of other subtypes and a possible heterotetramer among subtypes may be involved in differential InsP3/Ca2+ signalling. The chromosomal localization of the gene coding for InsP3R1 was confirmed on chromosome 6 but was found to be genetically independent of the Lurcher (Lc) mutation.
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MESH Headings
- Animals
- Autoradiography
- Binding Sites
- Calcium Channels/classification
- Calcium Channels/genetics
- Calcium Channels/metabolism
- Central Nervous System/metabolism
- Chromosome Mapping
- Gene Expression
- In Situ Hybridization
- Inositol 1,4,5-Trisphosphate Receptors
- Mice
- Mice, Inbred C57BL
- Mice, Inbred ICR
- Mice, Neurologic Mutants
- Muridae
- Phosphatidylinositols/metabolism
- Purkinje Cells/metabolism
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Receptors, Cytoplasmic and Nuclear/classification
- Receptors, Cytoplasmic and Nuclear/genetics
- Receptors, Cytoplasmic and Nuclear/metabolism
- Tissue Distribution
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Affiliation(s)
- T Furuichi
- Division of Behavior and Neurobiology, National Institute for Basic Biology, Okazaki, Japan
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65
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Fujimoto T, Nakade S, Miyawaki A, Mikoshiba K, Ogawa K. Localization of inositol 1,4,5-trisphosphate receptor-like protein in plasmalemmal caveolae. J Biophys Biochem Cytol 1992; 119:1507-13. [PMID: 1334960 PMCID: PMC2289753 DOI: 10.1083/jcb.119.6.1507] [Citation(s) in RCA: 270] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Activation of various receptors by extracellular ligands induces an influx of Ca2+ through the plasma membrane, but its molecular mechanism remains elusive and seems variable in different cell types. In the present study, we utilized mAbs generated against the cerebellar type I inositol 1,4,5-trisphosphate (InsP3) receptor and performed immunocytochemical and immunochemical experiments to examine its localization in several non-neuronal cells. By immunogold electron microscopy of ultrathin frozen sections as well as permeabilized tissue specimens, we found that a mAb to the type I InsP3 receptor (mAb 4C11) labels the plasma membrane of the endothelium, smooth muscle cell and keratinocyte in vivo. Interestingly, the labeling with the antibody was confined to caveolae, smooth vesicular inpocketings of the plasma membrane. The reactive protein, with an M(r) of 240,000 by SDS-PAGE, could be biotinylated with a membrane-impermeable reagent, sulfo-NHS-biotin, in intact cultured endothelial cells, and recovered by streptavidin-agarose beads, which result further confirmed its presence on the cell surface. The present findings indicate that a protein structurally homologous to the type I InsP3 receptor is localized in the caveolar structure of the plasma membrane and might be involved in the Ca2+ influx.
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MESH Headings
- Animals
- Antibodies, Monoclonal
- Biotin
- Blotting, Western
- Calcium Channels
- Cell Membrane/chemistry
- Cell Membrane/immunology
- Cell Membrane/ultrastructure
- Endothelium, Vascular/chemistry
- Endothelium, Vascular/immunology
- Endothelium, Vascular/ultrastructure
- Epidermis/chemistry
- Epidermis/immunology
- Epidermis/ultrastructure
- Immunohistochemistry
- Inositol 1,4,5-Trisphosphate Receptors
- Keratinocytes/chemistry
- Keratinocytes/immunology
- Keratinocytes/ultrastructure
- Mice
- Mice, Inbred Strains
- Microscopy, Immunoelectron
- Muscle, Smooth/chemistry
- Muscle, Smooth/immunology
- Muscle, Smooth/ultrastructure
- Receptors, Cell Surface/immunology
- Receptors, Cell Surface/isolation & purification
- Receptors, Cytoplasmic and Nuclear
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Affiliation(s)
- T Fujimoto
- Department of Anatomy, Faculty of Medicine, Kyoto University, Japan
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66
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Yoshikawa S, Tanimura T, Miyawaki A, Nakamura M, Yuzaki M, Furuichi T, Mikoshiba K. Molecular cloning and characterization of the inositol 1,4,5-trisphosphate receptor in Drosophila melanogaster. J Biol Chem 1992; 267:16613-9. [PMID: 1322910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
We isolated a cDNA encoding an inositol 1,4,5-trisphosphate receptor (InsP3R) of Drosophila melanogaster. The predicted Drosophila InsP3R (2,833 amino acids) has extensive sequence similarity to the mouse InsP3R. The polypeptide encoded by the cDNA was functionally expressed and showed characteristic InsP3-binding activity. The Drosophila InsP3R gene is located at the region 83A5-9 on the third chromosome and expresses throughout development but predominantly in the adult. Localization of the InsP3R mRNA in adult tissues suggests strong expression in the retina and antenna, indicating the involvement of the InsP3R in visual and olfactory transduction. In addition, the InsP3R mRNA is abundant in the legs and thorax, which are enriched with a muscular system. Such localization is apparently consistent with the quantitatively predominant sites for [3H]InsP3 binding in Drosophila and the fleshfly (Boettcherisca peregrina). The present study points to the likely functional importance of the InsP3/Ca2+ signaling system in Drosophila.
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MESH Headings
- Amino Acid Sequence
- Animals
- Blotting, Northern
- Calcium Channels
- Cell Membrane/metabolism
- Cloning, Molecular/methods
- Drosophila melanogaster/genetics
- Drosophila melanogaster/metabolism
- Gene Expression
- Inositol 1,4,5-Trisphosphate/metabolism
- Inositol 1,4,5-Trisphosphate Receptors
- Kinetics
- Mice
- Molecular Sequence Data
- Organ Specificity
- RNA, Messenger/biosynthesis
- RNA, Messenger/metabolism
- Receptors, Cell Surface/genetics
- Receptors, Cell Surface/metabolism
- Receptors, Cytoplasmic and Nuclear
- Restriction Mapping
- Sequence Homology, Nucleic Acid
- Transfection
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Affiliation(s)
- S Yoshikawa
- Division of Behavior and Neurobiology, National Institute for Basic Biology, Okazaki, Japan
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67
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Yoshikawa S, Tanimura T, Miyawaki A, Nakamura M, Yuzaki M, Furuichi T, Mikoshiba K. Molecular cloning and characterization of the inositol 1,4,5-trisphosphate receptor in Drosophila melanogaster. J Biol Chem 1992. [DOI: 10.1016/s0021-9258(18)42047-9] [Citation(s) in RCA: 78] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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68
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Kuriyama M, Esaki N, Yamada S, Ito S, Okano M, Takahashi Y, Shinoda I, Kawada Y, Ohkawa J, Miyawaki A. [Measurement of serum PSA values by DELFIA PSA and its clinical significance on diagnosis and follow-up of prostate cancer patients]. Hinyokika Kiyo 1992; 38:425-31. [PMID: 1382383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Serum prostate specific antigen (PSA) values detected by DELFIA PSA were evaluated for usefulness in the diagnosis and follow-up of patients with prostate cancer. The system is time-resolved fluoroimmunoassay using europium as a tracer, which has a detectable range of 0.10-500 ng/ml with a small sample volume (25 microliters) and reliable quality control data. Furthermore, serum PSA values detected by the assay were equivocal to those detected by Tandem-R PSA. From the mean +3 S.D. of serum PSA values obtained on 227 normal males, 1.98 ng/ml was decided as an upper normal level. Serum PSA values in benign prostatic hyperplasia (BPH) (n = 69) and prostate cancer (n = 86) patients were statistically higher than those in normal males. However, when 1.98 ng/ml was used as a cut-off value, the false positive rate in BPH cases elevated up to 80%. Therefore, in the differential diagnosis of prostate cancer and BPH, we recommend 11.7 ng/ml (mean + S.D. in BPH cases) as a cut-off value, in which sensitivity is 72.1%, 88.4% are true negative in BPH, and efficacy is 79.4%. Serially determined serum PSA values in following up the patients with prostate cancer were confirmed to be highly effective for diagnosing recurrence and evaluating treatment responses. These findings suggest that DELFIA PSA is a useful tool for determination of serum PSA values.
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Affiliation(s)
- M Kuriyama
- Department of Urology, Gifu University School of Medicine
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69
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Mikoshiba K, Furuichi T, Miyawaki A, Yoshikawa S, Nakagawa T, Aruga J, Okano H, Yamada N. Inositol 1,4,5-trisphosphate (IP3) receptors. Clin Neuropharmacol 1992; 15 Suppl 1 Pt A:62A-63A. [PMID: 1323409 DOI: 10.1097/00002826-199201001-00034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- K Mikoshiba
- Department of Molecular Neurobiology, University of Tokyo, Japan
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70
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Miyawaki A, Furuichi T, Ryou Y, Yoshikawa S, Nakagawa T, Saitoh T, Mikoshiba K. Structure-function relationships of the mouse inositol 1,4,5-trisphosphate receptor. Proc Natl Acad Sci U S A 1991; 88:4911-5. [PMID: 1647021 PMCID: PMC51777 DOI: 10.1073/pnas.88.11.4911] [Citation(s) in RCA: 126] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
The homotetrameric complex of inositol 1,4,5-triphosphate (InsP3) receptors displays a Ca2+ release activity in response to InsP3 molecules. Structure-function relationships of the mouse cerebellar InsP3 receptor have been studied by analyses of a series of internal deletion or C-terminal truncation mutant proteins expressed in NG108-15 cells. Within the large cytoplasmic portion of the InsP3 receptor, approximately 650 N-terminal amino acids are highly conserved between mouse and Drosophila, and this region has the critical sequences for InsP3 binding that probably form the three-dimensionally restricted binding site. The N-terminal region of each InsP3 receptor subunit also binds one InsP3 molecule. Cross-linking experiments have revealed that InsP3 receptors are intermolecularly associated at the transmembrane domains and/or the successive C termini. The interaction between the receptor subunit and InsP3 may cause a conformational change in the tetrameric complex, resulting in the opening of Ca2+ channels.
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Affiliation(s)
- A Miyawaki
- Division of Behavior and Neurobiology, National Institute for Basic Biology, Okazaki, Japan
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71
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Mikoshiba K, Furuichi T, Maeda N, Yoshikawa S, Miyawaki A, Niinobe M, Wada K. Primary structure and functional expression of the inositol 1,4,5-trisphosphate receptor, P400. Adv Exp Med Biol 1991; 287:83-95. [PMID: 1662017 DOI: 10.1007/978-1-4684-5907-4_8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- K Mikoshiba
- Division of Regulation of Macromolecular Function, Osaka University, Japan
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72
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Abstract
In order to clarify the nature of N-methyl-D-aspartate (NMDA) receptors in cerebellum, where heterogeneity of the NMDA receptor has been suggested, we investigated the action of MK-801 on the NMDA-induced [Ca2+]i rise in cultured cerebellar neurons using video-assisted microfluorometry. MK-801 caused a potent and selective blockade of the NMDA-activated [Ca2+]i elevation. The blockade caused by MK-801 was dependent on the presence of NMDA, i.e., use-dependent. There was no difference in the mode of blockade between immunocytochemically identified Purkinje and non-Purkinje cells, although the relative size of the NMDA-induced [Ca2+]i rise was significantly less in Purkinje cells. These results indicate that the NMDA receptors in cultured cerebellar neurons are coupled with the same channels as those in other brain regions.
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Affiliation(s)
- M Yuzaki
- Division of Regulation of Macromolecular Function, Osaka University, Japan
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73
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Miyawaki A, Furuichi T, Maeda N, Mikoshiba K. Expressed cerebellar-type inositol 1,4,5-trisphosphate receptor, P400, has calcium release activity in a fibroblast L cell line. Neuron 1990; 5:11-8. [PMID: 2164403 DOI: 10.1016/0896-6273(90)90029-f] [Citation(s) in RCA: 120] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
P400, inositol 1,4,5-trisphosphate receptor (InsP3-R), is a key protein to understanding the mechanisms of inositol 1,4,5-trisphosphate (InsP3)-mediated Ca2+ mobilization. We obtained the cerebellar-type P400/InsP3-R cDNA and generated an L cell transfectant (L15) that produces cDNA-derived P400/InsP3-R. In membranes, this protein displays high affinity, specificity, and capacity for InsP3, as does the cerebellar P400/InsP3-R. InsP3 can also induce greater 45Ca2+ release from the membrane vesicles of L15 cells than from those of control L cells. These results provide direct evidence that the cDNA-derived P400/InsP3-R protein is actually involved in physiological Ca2+ mobilization, through binding to InsP3 molecules in the same manner as the cerebellar P400/InsP3-R.
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Affiliation(s)
- A Miyawaki
- Division of Behavior and Neurobiology, National Institute for Basic Biology, Okazaki, Japan
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74
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Yuzaki M, Miyawaki A, Akita K, Kudo Y, Ogura A, Ino H, Mikoshiba K. Mode of blockade by MK-801 of N-methyl-D-aspartate-induced increase in intracellular Ca2+ in cultured mouse hippocampal neurons. Brain Res 1990; 517:51-6. [PMID: 2165437 DOI: 10.1016/0006-8993(90)91006-3] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Microfluorometry with fura-2 was applied to study the action of the anticonvulsant (+)-5-methyl-10,11-dihydro-5H-dibenzo[a,d]cyclohepten-5,10-imine maleate (MK-801) on N-methyl-D-aspartate (NMDA)-induced increase in intracellular Ca2+ concentration ([Ca2+]i) in cultured mouse hippocampal neurons. MK-801 caused a potent and long-lasting blockade of the NMDA-activated [Ca2+]i elevation in a selective manner, not affecting the [Ca2+]i rise induced by quisqualate or kainate. Blockade and recovery from the blockade by MK-801 showed use dependency; the degree of blockade was dependent on the presence of NMDA. The use-dependent onset of antagonism was, however, highly sensitive to the bath temperature. MK-801 applied in the absence of NMDA had no effect on the response to subsequent application of NMDA at 22 degrees C, whereas it reduced the subsequent response to NMDA significantly at 37 degrees C. MK-801 interacted with the receptor-ion channel complex even when Mg2+, which is considered to block the open channel, had already blocked the NMDA-induced [Ca2+]i. The recovery from blockade by MK-801 was not accelerated by the application of 10 mM Mg2+ for 5 min. These results suggest that MK-801 can gain access to its binding site in the absence of NMDA at physiological temperature, and that this binding site is distinct from that for Mg2+.
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Affiliation(s)
- M Yuzaki
- Division of Regulation of Macromolecular Function, Osaka University, Japan
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75
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Furuichi T, Yoshikawa S, Miyawaki A, Wada K, Maeda N, Mikoshiba K. Primary structure and functional expression of the inositol 1,4,5-trisphosphate-binding protein P400. Nature 1989; 342:32-8. [PMID: 2554142 DOI: 10.1038/342032a0] [Citation(s) in RCA: 909] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Cloning and expression of functional P400 protein from cerebellar Purkinje neurons shows that this protein is a receptor for inositol 1,4,5-trisphosphate, a second messenger that mediates the release of intracellular calcium.
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MESH Headings
- Amino Acid Sequence
- Animals
- Antibodies, Monoclonal
- Calcium Channels
- Cerebellum/metabolism
- Cloning, Molecular
- DNA/genetics
- DNA/isolation & purification
- Gene Library
- Genes
- Inositol 1,4,5-Trisphosphate/metabolism
- Inositol 1,4,5-Trisphosphate Receptors
- Mice
- Molecular Sequence Data
- Protein Conformation
- Receptors, Cell Surface/biosynthesis
- Receptors, Cell Surface/genetics
- Receptors, Cell Surface/metabolism
- Receptors, Cholinergic/genetics
- Receptors, Cytoplasmic and Nuclear
- Restriction Mapping
- Ryanodine/metabolism
- Ryanodine Receptor Calcium Release Channel
- Sequence Homology, Nucleic Acid
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Affiliation(s)
- T Furuichi
- Division of Behavior and Neurobiology, National Institute for Basic Biology, Okazaki, Japan
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76
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Miyawaki A, Sasaki Y. Floristic changes in the Castanopsis cuspidata var. sieboldii-forest communities along the Pacific Ocean coast of the Japanese Islands. ACTA ACUST UNITED AC 1985. [DOI: 10.1007/bf00055693] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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77
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Demura H, Jibiki K, Sugimura E, Miyawaki A, Kozeki C. [Studies of 125I alpha-fetoprotein determination with a double antibody technic (2)]. Horumon To Rinsho 1978; 26:1077-9. [PMID: 83209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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78
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Miyawaki A. [Environmental pollution as the destructve force in the ecology--man as an organism and his civilization]. Kango Gijutsu 1971; 17:109-18. [PMID: 5209074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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79
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Miyawaki A. Pflanzensoziologische untersuchungen �ber reisfeld-vegetation auf den japanischen inseln mit vergleichender betrachtung mitteleuropas. ACTA ACUST UNITED AC 1960. [DOI: 10.1007/bf00299997] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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80
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