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Affiliation(s)
- J D Graham
- Westmead Institute for Cancer Research, University of Sydney, Westmead Hospital, NSW, Australia
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Watanabe S, Tani T, Watanabe S, Seno M. Transport of steroid hormones facilitated by serum proteins. BIOCHIMICA ET BIOPHYSICA ACTA 1991; 1073:275-84. [PMID: 1826216 DOI: 10.1016/0304-4165(91)90132-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The affinities with steroid hormones (alpha-estradiol, ethynylestradiol, progesterone, androsterone, dehydroisoandrosterone and testosterone) were observed for Cohn's fraction IV-1 and V (albumin). It was estimated from the comparison with the binding coefficient K (protein-bound form/free form of hormone) in a 3.5% (w/v) bovine serum albumin (BSA) solution that 40-80% of bound hormone in bovine serum is the BSA-bound form. It becomes clear in a liquid membrane system consisting of a hexane source phase (I), a water phase and a hexane receiving phase (II) that the transport flux of hormone is governed primarily by the partition coefficients between the water/hexane phases. In the case of a hormone with a lower partition coefficient, the uptake process from the hexane phase (I) to the water phase is a rate-determining step in the transport system and the serum proteins accelerate the transport of hormones, while with an increase in the partition coefficient the rate-determining step changes from the uptake step to the release step from the water phase to the hexane phase (II) and the hormone transport is decelerated owing to the significant decrease of free hormone concentration in the aqueous phase by the associated with serum proteins for the system having the restricted amount of hormone in the hexane source phase.
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Affiliation(s)
- S Watanabe
- Kanagawa Prefectural Public Health Laboratory, Yokohama, Japan
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Gray GO, Rundle S, Leavitt WW. Purification and partial characterization of a corticosteroid-binding globulin from hamster serum. BIOCHIMICA ET BIOPHYSICA ACTA 1987; 926:40-53. [PMID: 3651501 DOI: 10.1016/0304-4165(87)90180-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Our objective was to characterize and purify the corticosteroid-binding proteins in hamster pregnancy serum. When [3H]cortisol-labeled pregnancy and proestrous serum were subjected to native polyacrylamide gel electrophoresis, a single peak of specific steroid-binding activity was detected in each, with identical electrophoretic mobility. The steroid-binding affinity (Ka = 1.07.10(8) M-1 for cortisol) is typical of corticosteroid-binding globulin from other species, but the steroid-binding specificity (cortisol greater than testosterone greater than progesterone) is not. An ultraviolet photoaffinity-labeling protocol was developed using 17 beta-hydroxy-4,6-[1,2-3H]androstadiene-3-one ([3H]androstadienolone), permitting analysis of ultraviolet photoaffinity-labeled proestrous and pregnancy serum by two-dimensional polyacrylamide gel electrophoresis and fluorography. Both sera contained the same labeled protein species. Corticosteroid-binding globulin was purified from pregnancy serum by DEAE-cellulose chromatography followed by steroid affinity chromatography on androstadienolone-17 beta-hemisuccinate-ethylenediamine-AffiGel 10. The purified protein (Mr = 62,250; pI = 3.95; n = 1; Stokes radius = 3.5; S = 4-5) was determined to be a glycoprotein. When analyzed by gel filtration and two-dimensional polyacrylamide gel electrophoresis, purified corticosteroid-binding globulin behaved the same as in unfractionated serum, and when ultraviolet photoaffinity-labeled with [3H]androstadienolone, purified corticosteroid-binding globulin produced the same fluorogram spot pattern seen in unfractionated serum. A specific corticosteroid-binding globulin antiserum was raised in rabbits, and this antiserum reacted with a single spot in Western blots of unfractionated serum. Thus, hamster pregnancy serum was determined to have one corticosteroid-binding protein. This protein is identical to the corticosteroid-binding globulin found in proestrous serum, with a higher titer in pregnancy serum. No other steroid-binding component is observed in hamster serum.
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Affiliation(s)
- G O Gray
- Department of Biochemistry, Texas Tech University Health Sciences Center, Lubbock 79430
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Wriston JC. Comparative biochemistry of the guinea-pig: a partial checklist. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY. B, COMPARATIVE BIOCHEMISTRY 1984; 77:253-78. [PMID: 6365427 DOI: 10.1016/0305-0491(84)90329-8] [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: 01/19/2023]
Abstract
A great deal is known about guinea-pig biochemistry, but the information is scattered and difficult to assemble. The guinea-pig also possesses a number of unusual biochemical features which add to its interest. For these reasons we have compiled a list of biochemical characteristics of the guinea-pig, organized in a series of tables, with brief discussions of some of the entries.
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Defaye G, Basset M, Chambaz EM. Progesterone-binding globulin interaction with its steroid ligands: study of the protein binding site topography using spin labeled steroids and electron spin resonance spectroscopy. Chem Biol Interact 1983; 46:1-9. [PMID: 6193895 DOI: 10.1016/0009-2797(83)90002-9] [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: 01/18/2023]
Abstract
The binding site topography of progesterone-binding globulin (PBG) purified from pregnant guinea pig serum was examined using synthesized spin-labeled ligands and electron spin resonance (ESR) spectroscopy. A series of deoxycorticosterone-nitroxide (DOC-NO) derivatives were prepared, bearing the free radical on the side chain at increasing distance (d) from the steroid nucleus. The ability of the spin-labeled steroids to specifically bind to PBG was assessed by measurement of their relative binding affinity as compared to progesterone. ESR spectra of the bound steroid nitroxide radical were used to calculate the rotational correlation times tau c for the nitroxides as a function of their distance d to the protein-bound steroid nucleus. The data showed that the side chain nitroxide exhibited an unrestrained rotation in a water-like environment when d reached about 18 A. This would correspond to a PBG steroid binding site depth of about 28 A and suggests that the bound steroid in the PBG site is oriented with the side chain at C-17 directed toward the outside of the protein binding crevice.
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Perrot-Applanat M, David-Ferreira JF. Immunocytochemical localization of progesterone-binding protein (PBP) in guinea-pig placental tissue. Cell Tissue Res 1982; 223:627-39. [PMID: 6178511 DOI: 10.1007/bf00218482] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The cellular localization of progesterone-binding protein (PBP) in the guinea-pig placenta was studied by use of immunocytochemical procedures. Within the chorioallantoic placenta, a strong positive reaction was observed in the interlobar and marginal trophoblast from the third week of gestation to term. PBP was localized in the cytoplasm of the syncytiotrophoblast, and the nuclei were never stained. At the ultrastructural level, the immunoreaction was associated with the rough endoplasmic reticulum, the Golgi apparatus and the perinuclear space. No deposits were seen in any other cell organelles. This localization strongly suggests that the interlobar syncytium is related to PBP synthesis. In the labyrinth, a weak immunoreaction was observed by light microscopy around some blood lacunae. At the ultrastructural level the dense deposits were localized in vesicles located near the maternal lacunae. The distribution of PBP was also studied by light microscopy in other tissues from pregnant guinea-pig. No PBP, or PBP-like material, was detected inside cells from liver, muscle, heart, lung, kidney, ovary, and uterus. A weak immunoreaction for PBP was detected in vascularized zones of these organs. These observations strongly suggest that PBP, a protein related to gestation in the guinea-pig, is elaborated by the placental tissue of this hystricomorph rodent. PBP is the first steroid-binding plasma protein shown to be of extrahepatic origin.
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Wriston JC. Biochemical peculiarities of the guinea pig and some possible examples of convergent evolution. J Mol Evol 1981. [DOI: 10.1007/bf01792418] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Perrot-Applanat M, Milgrom E. Messenger ribonucleic acid for corticosteroid-binding globulin. Translation and preliminary characterization. Biochemistry 1979; 18:5732-7. [PMID: 117831 DOI: 10.1021/bi00592a033] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Basset M, Chambaz EM, Defaye G, Metz B. [Electron paramagnetic resonance study of the interactions between steroid hormones and binding proteins]. Biochimie 1978; 60:715-24. [PMID: 83166 DOI: 10.1016/s0300-9084(78)80016-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Interaction of a spin labeled corticosteroid (desoxycorticosterone nitroxyde: DOC -NO) with three purified proteins (albumin, transcortin, progesterone binding protein: PBG) was studied by electron spin resonance (ESR) spectroscopy. DOC-NO was competitive with natural corticosteroids and therefore bound at the same site to specific binding proteins. ESR spectra in the presence of each of the proteins showed an immobilized (bound) form of the spin labeled steroid and allowed the calculation of the corresponding association constant (Ka) at equilibrium. The three binding proteins could be characterized by the ESR parameters of the DOC-NO bound form. The thermodynamic parameters (deltaH, deltaS) of the steroid-protein interactions were calculated from the ESR data obtained within a wide temperature range (3--40 degrees C). The ESR spectra width (2T) was used to evaluate the polarity of the spin label environment within the steroid binding site: a hydrophobic character was observed for transcortin whereas PBG exhibited a more hydrophilic steroid binding sits. The rotational correlation time of the three protein DOC-NO complexes at equilibrium were calculated from ESR data; the results were correlated with the protein molecular size and suggested a non spherical shape for the binding macromolecule in solution. Spin labelling of biologically active steroids thus provides a novel approach for the study of the interaction of these hormones with their binding protein. Providing a suitable spin label, the ESR parameters may allow the characterization of several types of binding sites of different biological significance for the same hormone, in biological fluids as well as in target tissues.
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Uniyal JP, Laumas KR. Binding of norgestrel to human plasma proteins. BIOCHIMICA ET BIOPHYSICA ACTA 1976; 427:218-30. [PMID: 4109 DOI: 10.1016/0005-2795(76)90298-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Binding of [14, 15-3H](+/-)-norgestrel to human plasma proteins has been investigated. Norgestrel showed greater affinity to plasma than to human serum albumin indicating specific norgestrel binding protein(s) in the plasma. alpha1-acid glycoprotein showed high affinity for norgestrel when compared with human serum albumin. The binding protein was eluted at pH 5.8 by step by step elution on a DEAE-cellulose column. Norgestrel binding to plasma proteins was not affected at 60 degrees C. The optimal binding occurred between pH 7 and 8. Ligand specificity of the binding protein revealed that progesterone was able to compete for the norgestrel binding sites, whereas corticosterone, testosterone, oestradiol, and norethindrone acetate did not show much competition. The molecular weight of the binding protein was found to be approximately 43 000. Sucrose density gradient analysis indicated that norgestrel bound to a macromolecular component of sedimentation coefficient 2.9 S. The association constant (Kass) and dissociation constant (Kdiss) of norgestrel-binding plasma protein was found to be 1.4-10(6) M-1 and 0.7-10(-6) M respectively. The number of binding sites was 0.5-10(-9) mol/mg protein. Norgestrel-binding protein in the plasma appeared to be a protein different from human serum albumin, corticosteroid-binding globulin and sex-steroid-binding protein. This binding protein showed some similarities to alpha1-acid glycoprotein.
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Stroupe SD, Westphal U. Steroid-protein interactions. Fluorescence quenching of progesterone-binding globulin and alpha1-acid glycoprotein upon binding of steroids. Arch Biochem Biophys 1975; 168:473-82. [PMID: 1169912 DOI: 10.1016/0003-9861(75)90277-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Raynaud JP, Bonne C, Bouton MM, Moguilewsky M, Philibert D, Azadian-Boulanger G. Screening for anti-hormones by receptor studies. JOURNAL OF STEROID BIOCHEMISTRY 1975; 6:615-22. [PMID: 171505 DOI: 10.1016/0022-4731(75)90042-4] [Citation(s) in RCA: 51] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Milgrom E, Allouch P, Atger M. Purification of progesterone-binding plasma protein (PBP) from pregnant guinea pigs. Methods Enzymol 1975; 36:120-6. [PMID: 1110630 DOI: 10.1016/s0076-6879(75)36014-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Burton RM, Harding GB, Aboul-Hosn WR, MacLaughlin DT, Westphal U. Progesterone-binding globulin from the serum of pregnant guinea pigs, a polydisperse glycoprotein. Biochemistry 1974; 13:3554-61. [PMID: 4846294 DOI: 10.1021/bi00714a023] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Harding GB, Burton RM, Stroupe SD, Westphal U. Steroid protein interactions. XXVIII. The isoelectric point and pH stability of the progesterone-binding globulin. Life Sci 1974; 14:2405-12. [PMID: 4143644 DOI: 10.1016/0024-3205(74)90136-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Jagarinec N, Givner ML. Measurement of a progestational and antiandrogenic compound by a competitive protein binding assay. Steroids 1974; 23:561-78. [PMID: 4364225 DOI: 10.1016/0039-128x(74)90008-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Lea OA. On the steroid specificity of the pregnant guinea pig progesterone-binding globulin. BIOCHIMICA ET BIOPHYSICA ACTA 1973; 322:68-74. [PMID: 4795553 DOI: 10.1016/0005-2795(73)90176-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Isolation and characterisation of a progesterone- and testosterone-binding globulin from pregnant guinea pig serum. ACTA ACUST UNITED AC 1973; 317:351-63. [DOI: 10.1016/0005-2795(73)90230-4] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Milgrom E, Allouch P, Atger M, Baulieu EE. Progesterone-binding Plasma Protein of Pregnant Guinea Pig. J Biol Chem 1973. [DOI: 10.1016/s0021-9258(19)44377-9] [Citation(s) in RCA: 32] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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MacLaughlin DT, Harding GB, Westphal U. Steroid-protein interactions. XXV. Binding of progesterone and cortisol in pregnancy sera; progesterone-binding globulin and uterine cytosol receptor in the pregnant guinea pig. THE AMERICAN JOURNAL OF ANATOMY 1972; 135:179-86. [PMID: 4342836 DOI: 10.1002/aja.1001350205] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Swain MC. The assay of plasma progesterone in women by a simple competitive protein binding method using guinea-pig serum. Clin Chim Acta 1972; 39:455-61. [PMID: 5043780 DOI: 10.1016/0009-8981(72)90066-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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