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Crerar MM, Rooks NE. The Structure and Expression of Amylase Genes in Mammals: an Overview. Crit Rev Biotechnol 2008. [DOI: 10.3109/07388558709086980] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Hale MA, Kagami H, Shi L, Holland AM, Elsässer HP, Hammer RE, MacDonald RJ. The homeodomain protein PDX1 is required at mid-pancreatic development for the formation of the exocrine pancreas. Dev Biol 2005; 286:225-37. [PMID: 16126192 DOI: 10.1016/j.ydbio.2005.07.026] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2004] [Revised: 06/29/2005] [Accepted: 07/01/2005] [Indexed: 10/25/2022]
Abstract
The homeoprotein PDX1 is expressed throughout pancreatic development and is thought to play important roles at multiple stages. We describe the properties of a tet-off regulatory scheme to manage the expression of Pdx1 in utero. Cessation of Pdx1 expression at increasingly later gestational times blocked pancreatic development at progressive and morphologically distinct stages and provided the opportunity to assess the requirement for Pdx1 at each stage. Embryonic PDX1 is depleted below effective levels within 1 day of the initiation of doxycycline treatment of pregnant mice. We show that PDX1, which is necessary for early pancreatic development, is also required later for the genesis of acinar tissue, the compartment of the pancreas that produces digestive enzymes. Without PDX1, acini do not form; the precursor epithelium continues to grow and branch, creating a truncated ductal tree comprising immature duct-like cells. The bHLH factor PTF1a, a critical regulator of acinar development, is not expressed and cells producing digestive enzymes are rare. This approach should be generally applicable to study the in vivo functions of other developmental regulators with multiple, temporally distinct roles.
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Affiliation(s)
- Michael A Hale
- Department of Molecular Biology, The University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX 75390-9148, USA
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Kawaguchi Y, Cooper B, Gannon M, Ray M, MacDonald RJ, Wright CVE. The role of the transcriptional regulator Ptf1a in converting intestinal to pancreatic progenitors. Nat Genet 2002; 32:128-34. [PMID: 12185368 DOI: 10.1038/ng959] [Citation(s) in RCA: 750] [Impact Index Per Article: 34.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Pancreas development begins with the formation of buds at specific sites in the embryonic foregut endoderm. We used recombination-based lineage tracing in vivo to show that Ptf1a (also known as PTF1-p48) is expressed at these early stages in the progenitors of pancreatic ducts, exocrine and endocrine cells, rather than being an exocrine-specific gene as previously described. Moreover, inactivation of Ptf1a switches the character of pancreatic progenitors such that their progeny proliferate in and adopt the normal fates of duodenal epithelium, including its stem-cell compartment. Consistent with the proposal that Ptf1a supports the specification of precursors of all three pancreatic cell types, transgene-based expression of Pdx1, a gene essential to pancreas formation, from Ptf1a cis-regulatory sequences restores pancreas tissue to Pdx1-null mice that otherwise lack mature exocrine and endocrine cells because of an early arrest in organogenesis. These experiments provide evidence that Ptf1a expression is specifically connected to the acquisition of pancreatic fate by undifferentiated foregut endoderm.
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Affiliation(s)
- Yoshiya Kawaguchi
- Vanderbilt Developmental Biology Program, Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, 1161 21st Avenue South, Nashville, Tennessee 37232-2175, USA
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Angchaisuksiri P, Grigus SR, Carlson PL, Krystal GW, Dessypris EN. Secretion of a unique peptide from interleukin-2-stimulated natural killer cells that induces endomitosis in immature human megakaryocytes. Blood 2002; 99:130-6. [PMID: 11756162 DOI: 10.1182/blood.v99.1.130] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
When interleukin-2 (IL-2) was added to immature, low-ploidy (greater than 80% 2N+4N) megakaryocytes generated in IL-3 and stem cell factor (SCF)-containing liquid cultures of blood mononuclear cells highly enriched in hematopoietic progenitors, a 2- to 6-fold increase in the absolute number of polyploid (more than 8N) megakaryocytes was noted. This effect was found to be indirect and was mediated through natural killer (NK) cells that constitute the major lymphoid cell contaminating day 6 megakaryocyte cell populations. IL-2 had no effect on megakaryocytes generated from CD34(+) cells stimulated with IL-3 and SCF. However, medium conditioned by IL-2-stimulated, but not resting, NK cells (NKCM) contained a trypsin-sensitive factor capable of increasing 2- to 5-fold the number of polyploid megakaryocytes generated in vitro from IL-3 and SCF-stimulated CD34(+) cells. The activity in NKCM was dose dependent and could not be neutralized by an excess of antibodies to IL-6, IL-11, leukemia inhibitory factor (LIF), gp130, stromal cell derived factor-1a (SDF-1a), and thrombopoietin (TPO). Addition of IL-11, but not TPO, to NKCM-containing cultures resulted in further augmentation of polyploidy, with the generation of 50% to 70% polyploid megakaryocytes with a modal ploidy of 16N. This factor is distinct from TPO because it induces endomitosis in IL-3-generated megakaryocytes in vitro, whereas TPO does not, and its activity on megakaryocyte ploidy is not altered by optimal concentrations of TPO. In addition, no message for TPO is detectable in IL-2-stimulated NK cells by reverse transcription-polymerase chain reaction. These findings indicate that IL-2-stimulated NK cells produce a novel peptide, distinct from TPO, IL-6, IL-11, LIF, other gp130-associated interleukins, and SDF1a, that can induce in vitro endomitosis in immature human megakaryocytes in the presence of IL-3 and SCF.
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Affiliation(s)
- Pantep Angchaisuksiri
- Division of Hematology/Oncology, Hunter Holmes McGuire Department of Veterans Affairs Medical Center, and the Medical College of Virginia, Virginia Commonwealth University, Richmond, VA 23249, USA
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Rashed SM, Patel TB. Regulation of hepatic energy metabolism by epidermal growth factor. EUROPEAN JOURNAL OF BIOCHEMISTRY 1991; 197:805-13. [PMID: 1903108 DOI: 10.1111/j.1432-1033.1991.tb15975.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Employing the non-recirculating perfused rat liver preparation, we have investigated the regulation of hepatic gluconeogenesis, and metabolic fluxes through the tricarboxylic acid cycle and 2-oxoglutarate dehydrogenase reaction by epidermal growth factor (EGF) which mimics the actions of both insulin and Ca(2+)-mobilizing hormones (e.g. vasopressin). As monitored by the rate of 14CO2 production from [2-14C]pyruvate (0.5 mM), EGF (10 nM) transiently stimulated the activity of the tricarboxylic acid cycle. EGF also transiently stimulated hepatic gluconeogenesis from pyruvate. The transient stimulation of tricarboxylic acid cycle activity and gluconeogenesis were accompanied by an increase in perfusate Ca2+ content indicating that EGF also altered hepatic Ca2+ fluxes. EGF-elicited stimulation of gluconeogenesis was, at least in part, the result of a transient (50%) inhibition of pyruvate kinase activity. Likewise, EGF-mediated stimulation of tricarboxylic acid cycle activity can, in part, be attributed to EGF-elicited stimulation of metabolic flux through the mitochondrial, Ca(2+)-sensitive, 2-oxoglutarate dehydrogenase reaction. The regulation of hepatic metabolism by EGF appears to be the manifestation of alteration in cellular Ca2+ content since in experiments performed under conditions known to abolish the ability of EGF to alter cytosolic free-Ca2+ concentrations, i.e. in livers of pertussis-toxin-treated rats, EGF did not alter either perfusate Ca2+ content or any of the metabolic parameters monitored. Additionally, experiments involving pulsatile infusion of either EGF or phenylephrine into livers demonstrated that, unlike the alpha 1-adrenergic receptor, homologous desensitization of the EGF receptor occurs. Such a homologous desensitization of the EGF receptor can explain the transient nature of EGF-elicited stimulation of various metabolic processes. Since protein kinase C activation by EGF can lead to receptor desensitization, experiments were performed with phorbol esters which either activate or do not alter protein kinase C activity. While the inactive phorbol ester 4 alpha-phorbol 12,13-didecanoate did not modulate the hepatic actions of EGF, activation of protein kinase C by 4 beta-phorbol 12-myristate 13-acetate (70 nM) abolished the ability of EGF to stimulate gluconeogenesis, tricarboxylic acid cycle activity and metabolic flux through the 2-oxoglutarate dehydrogenase complex.
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Affiliation(s)
- S M Rashed
- Department of Pharmacology, University of Tennessee, Memphis
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Gadbois DM, Salo WL, Ann DK, Downing SW, Carlson DM. The preparation of poly(A)+mRNA from the hagfish slime gland. PREPARATIVE BIOCHEMISTRY 1988; 18:67-76. [PMID: 2897686 DOI: 10.1080/00327488808062513] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The isolation of translatable poly(A)+mRNA from the slime glands of the Pacific hagfish, Eptatretus stouti, is not possible by the commonly used procedures because of the viscous slime that is formed when the contents of the glands are hydrated. This paper reports on a procedure developed to overcome this problem. Briefly, the tissue was powdered in liquid nitrogen, mixed with sodium lauroylsarcosine and proteinase K and lyophilized. The lyophilized powder was then mixed with 0.3 mm diameter glass beads, thoroughly ground and wetted with buffer and digested at 37 degrees C. The RNA from the digest was recovered by ultracentrifugation through a CsCl cushion. Further purification of the RNA was accomplished by the usual methods with slight modifications.
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Affiliation(s)
- D M Gadbois
- Department of Biochemistry, School of Medicine, University of Minnesota, Duluth 55812
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Patel TB. Hormonal regulation of the tricarboxylic acid cycle in the isolated perfused rat liver. EUROPEAN JOURNAL OF BIOCHEMISTRY 1986; 159:15-22. [PMID: 3091366 DOI: 10.1111/j.1432-1033.1986.tb09827.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The effect of Ca2+-mobilizing hormones, vasopressin, angiotensin II and the alpha-adrenergic agonist phenylephrine, on the metabolic flux through the tricarboxylic acid cycle was investigated in isolated perfused rat livers. All three Ca2+-mobilizing agonists stimulated 14CO2 production and gluconeogenesis in livers of 24-h-fasted rats perfused with [2-14C]pyruvate. Prazosin blocked the phenylephrine-elicited stimulation of 14CO2 and glucose production from [2-14C]pyruvate whereas the alpha 2-adrenergic agonist, BHT-933, did not affect the rates of 14CO2 and glucose production from [2-14C]pyruvate indicating that the phenylephrine-mediated response involved alpha 1-adrenergic receptors. Phenylephrine, vasopressin and angiotensin II stimulated 14CO2 production from [2-14C]acetate in livers derived from fed rats but not in livers of 24-h-fasted rats. In livers of 24-h-fasted rats, perfused with [2-14C]acetate, exogenously added pyruvate was required for an increase in the rate of 14CO2 production during phenylephrine infusion. This last observation suggests increased pyruvate carboxylation as one of the mechanisms involved in stimulation of tricarboxylic acid cycle activity by the Ca2+-mobilizing agonists, vasopressin, angiotensin II and phenylephrine.
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Kanki T, Ichikawa Y. Bursal role in the synthesis of gamma-chain messenger ribonucleic acid in young chickens. Poult Sci 1986; 65:1011-4. [PMID: 3088558 DOI: 10.3382/ps.0651011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Incomplete bursectomy was performed in 3-day-old chickens by treatment with .5% testosterone propionate on the 3rd day of incubation. The purpose of this experimental approach was to determine the role of the bursa of Fabricius in the translation activity of messenger ribonucleic acids (RNA) coding immunoglobulin-isotypes. The bursal poly(A) RNA, prepared from bursae of normal and hormone-treated chickens, directed the synthesis of 72, 43, 38, and 25-kilodalton molecules as revealed by immune precipitation and sodium dodecylsulphate acrylamide gel electrophoresis. However, unlike the messenger RNA from normal bursae, the messenger from bursae of hormonal-treated embryos failed to direct the synthesis of 68-kilodalton gamma-polypeptide.
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Abstract
The purpose of this article is to review recent literature on the isoenzymes of alpha amylase. Although some studies are cited from the literature of fields other than clinical biochemistry, the aim is to bring together findings that may be of interest to clinical laboratory physicians and scientists. It is hoped that this will be useful in suggesting further studies of amylase. To this end, the review is more selective than exhaustive. The review will discuss the history and chemistry alpha amylases, the measurement of amylase and amylase isoenzymes, posttranslational modifications of human amylases, and the genetics of human pancreatic and salivary amylases. Finally, we will discuss other tissue sources of amylase with emphasis on "genital" amylases and their relationship to the amylase found in serous ovarian tumors.
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Myles DD, Strong P, Stratton GD, Skidmore IF, Sugden MC. Stimulation of flux through hepatic pyruvate dehydrogenase by 3-mercaptopicolinate. Biosci Rep 1984; 4:441-50. [PMID: 6733263 DOI: 10.1007/bf01122510] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Isolated hepatocytes from 24-h-starved rats were used to assess the possible effect of the hypoglycaemic agent 3-mercaptopicolinate on flux through the hepatic pyruvate dehydrogenase complex. Increasing the extracellular pyruvate concentration from 1 mM to 2 mM or 5 mM resulted in an increase in flux through pyruvate dehydrogenase and the tricarboxylic acid cycle as measured by 14CO2 evolution from [1-14C]pyruvate and [3-14C]pyruvate. Gluconeogenesis was inhibited by 3-mercaptopicolinate from both 1 mM and 2 mM pyruvate, but significant increases in malate and citrate concentrations only occurred in cells incubated with 1 mM pyruvate. Flux through pyruvate dehydrogenase was stimulated by 3-mercaptopicolinate with 1 mM pyruvate but was unaltered with 2 mM pyruvate. Dichloroacetate stimulated flux through pyruvate dehydrogenase with no effect on gluconeogenesis in the presence of 1 mM pyruvate. There was no effect of 3-mercaptopicolinate, administered in vivo, to 24-h-starved rats on the activity of pyruvate dehydrogenase in freeze-clamped heart or liver tissue, although the drug did decrease blood glucose concentration and increase the blood concentrations of lactate and alanine. Dichloroacetate, administered in vivo to 24-h-starved rats, increased the activity of pyruvate dehydrogenase in freeze-clamped heart and liver, and caused decreases in the blood concentrations of glucose, lactate, and alanine. The results suggest that 3-mercaptopicolinate increases flux through hepatocyte pyruvate dehydrogenase by an indirect mechanism.
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Schwartz RS, Abraham S. The effect of dietary fat on the activity, content, rates of synthesis, and degradation and translation of messenger RNA coding for malic enzyme in mouse liver. Arch Biochem Biophys 1983; 221:206-15. [PMID: 6830256 DOI: 10.1016/0003-9861(83)90137-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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MacDonald RJ, Stary SJ, Swift GH. Two similar but nonallelic rat pancreatic trypsinogens. Nucleotide sequences of the cloned cDNAs. J Biol Chem 1982. [DOI: 10.1016/s0021-9258(18)34133-4] [Citation(s) in RCA: 103] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Raymond MN, Gaye P, Hue D, Haze G, Mercier JC. Amino terminal sequence, processing, and biological activity of porcine pre-alpha-lactalbumin. Biochimie 1982; 64:271-8. [PMID: 6124279 DOI: 10.1016/s0300-9084(82)80494-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Polyadenylated RNAs isolated from bound polysomes of a lactating sow's mammary gland, were translated in a cell-free system and in vitro synthesized alpha-lactalbumin was immunoprecipitated and radiosequenced. The translation product was found to contain an amino terminal extension of 19 amino acid residues, very similar to its ovine counterpart, that was selectively removed when translation was carried out in the presence of rabbit mammary microsomal membranes. Assays of porcine pre-alpha-lactalbumin for activity on galactosyltransferase showed that the preprotein can also interact with and modify the specificity of the enzyme, as indicated by de novo synthesis of lactose.
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Detection of alpha-amylase activity in unprocessed preamylase produced in the cell-free translation of porcine pancreatic RNA. J Biol Chem 1981. [DOI: 10.1016/s0021-9258(19)68501-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Thomsen KK, Vuust J, Lund T. Isolation and characterization of alpha-amylase messenger RNA from bank vole parotid glands. Evidence for two separate messenger RNAs coding for amylase and an amylase-related protein. EUROPEAN JOURNAL OF BIOCHEMISTRY 1981; 117:81-6. [PMID: 6167442 DOI: 10.1111/j.1432-1033.1981.tb06305.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Bank vole saliva contains two glycogen-precipitable proteins, both of which show affinity for the alpha-amylase inhibitor cycloheptaamylose. One of these proteins, amylase, has a molecular weight of 55,000, judged from dodecylsulphate/acrylamide gel electrophoresis. The other has an apparent molecular weight of 59,000 and has no amylase activity. We report here that tryptic peptide maps as well as amino-acid composition analyses indicate extensive homology between the two proteins. We have also isolated total poly(A)-containing mRNA from amylase-rich bank vole parotid glands. These mRNAs were translated in the presence of [35S]methionine in an mRNA-dependent cell-free translation system from rabbit reticulocyte lysate. The radioactive translation products were examined by dodecylsulphate/polyacrylamide gel electrophoresis. Two major translation products with apparent molecular weights of approximately 56,500 and 60,500, respectively, were further characterized by tryptic peptide analyses. Our data indicate that the 56,500-Mr product is the biosynthetic precursor of amylase, whereas the 60,500-Mr translation product is a precursor of the 59,000-Mr amylase-like protein. Both precursors appear to contain extra peptide material, presumably as amino-terminal 'pre' or 'signal' peptides, in analogy with that found for other precursors of secretory proteins. Thus, amylase and the 59,000-Mr protein, although very similar, are translated from two separate mRNAs. These two messengers sediment in a sucrose gradient at about 17-S, corresponding to lengths of about 1,800 nucleotides.
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Abstract
Via recombinant DNA technology the mRNA sequence of pancreatic amylase has been cloned and its nucleotide sequence has been determined. The cloned sequence represents 96% of the total length of amylase mRNA; missing are an estimated 75 +/- 30 nucleotides from the 5' end. The amino acid sequence of rat pancreatic amylase was deduced solely from the nucleotide sequence of the mRNA. Unlike other eukaryotic mRNAs, the amylase mRNA has short 5' and 5' untranslated regions, suggesting that long untranslated regions of eukaryotic mRNAs either do not contain extensive functional sequences or that these sequences are incorporated within the amino acid coding region of amylase mRNA. The cloned amylase mRNA sequence was radiolabeled and used as a probe for in situ hybridization. These experiments demonstrate that amylase mRNA is present in all acinar cells but not in other pancreatic cell types. Using the cloned amylase mRNA sequences as a hybridization probe, three nonoverlapping genomic DNA fragments containing amylase gene sequences were isolated. From the similar sequence organization of the three amylase genes visualized by DNA heteroduplex mapping, a consensus structure of a rat amylase gene is proposed. It is an extended gene structure 10 kilobase pairs in length containing the 1547 base pairs of the cloned mRNA coding sequence interrupted by seven intervening sequences ranging from 400-2000 base pairs long. Thus, in nuclear DNA the amylase mRNA coding sequence is disrupted into at least eight segments from 150-300 base pairs long.
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Schibler U, Tosi M, Pittet AC, Fabiani L, Wellauer PK. Tissue-specific expression of mouse alpha-amylase genes. J Mol Biol 1980; 142:93-116. [PMID: 6159478 DOI: 10.1016/0022-2836(80)90208-9] [Citation(s) in RCA: 169] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Mendez B, Valenzuela P, Martial JA, Baxter JD. Cell-free synthesis of acetylcholine receptor polypeptides. Science 1980; 209:695-7. [PMID: 7394526 DOI: 10.1126/science.7394526] [Citation(s) in RCA: 40] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Messenger RNA coding for acetylcholine receptor peptides has been identified. This polyadenylate [poly(A)+]RNA from Torpedo californica directs, in a cell-free system, the synthesis of peptides 60,000, 51,000, 49,000 41,000, and 35,000 daltons which account for approximately 2 percent of the total synthesized proteins. The results suggest that several different messenger RNA's code for the receptor subunits. These proteins react specifically to antiserum to native acteylcholine receptor, suggesting that the primary translational product has conformational features similar to the native receptor. Further, the results support the idea that there is post-translational modification of receptor subunits as the molecular weights of the cell-free synthesized proteins differ from those of purified receptor subunits.
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Ivarie RD, Jones PP. A rapid sensitive assay for specific protein synthesis in cells and in cell-free translations: use of Staphylococcus aureus as an adsorbent for immune complexes. Anal Biochem 1979; 97:24-35. [PMID: 39469 DOI: 10.1016/0003-2697(79)90322-1] [Citation(s) in RCA: 127] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Shackelford JE, Lebherz HG. Cell-free synthesis of fructose diphosphate aldolases A, B, and C. J Biol Chem 1979. [DOI: 10.1016/s0021-9258(18)50718-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Przybyla A, MacDonald R, Harding J, Pictet R, Rutter W. Accumulation of the predominant pancreatic mRNAs during embryonic development. J Biol Chem 1979. [DOI: 10.1016/s0021-9258(17)37779-7] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Ray S, Rothenberg B, Rosenfeld M. Quantitation of rabbit pancreatic alpha-amylase mRNA by cell-free translation and by hybridization kinetics. J Biol Chem 1979. [DOI: 10.1016/s0021-9258(17)34187-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Rat pancreatic amylase mRNA. Tissue specificity and accumulation during embryonic development. J Biol Chem 1978. [DOI: 10.1016/s0021-9258(17)34238-2] [Citation(s) in RCA: 32] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Effects of dexamethasone and 5-bromodeoxyuridine on the synthesis of amylase mRNA during pancreatic development in vitro. J Biol Chem 1978. [DOI: 10.1016/s0021-9258(17)34536-2] [Citation(s) in RCA: 37] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Karn RC. The comparative biochemistry, physiology, and genetics of animal alpha-amylases. ADVANCES IN COMPARATIVE PHYSIOLOGY AND BIOCHEMISTRY 1978; 7:1-103. [PMID: 367107 DOI: 10.1016/b978-0-12-011507-5.50007-0] [Citation(s) in RCA: 64] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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29
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Harding JD, MacDonald RJ, Przybyla AE, Chirgwin JM, Pictet RL, Rutter WJ. Changes in the frequency of specific transcripts during development of the pancreas. J Biol Chem 1977. [DOI: 10.1016/s0021-9258(19)66977-2] [Citation(s) in RCA: 64] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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