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ABERCROMBIE DAVIDM, KANMERA TATSUHIKO, ANGAL SAROJANI, TAMAOKI HIDETSUNE, CHAIKEN IRWINM. Cooperative interactions in neurophysin-neuropeptide hormonecomplexes. ACTA ACUST UNITED AC 2009. [DOI: 10.1111/j.1399-3011.1984.tb00950.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Breslow E, Burman S. Molecular, thermodynamic, and biological aspects of recognition and function in neurophysin-hormone systems: a model system for the analysis of protein-peptide interactions. ADVANCES IN ENZYMOLOGY AND RELATED AREAS OF MOLECULAR BIOLOGY 2006; 63:1-67. [PMID: 2407063 DOI: 10.1002/9780470123096.ch1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- E Breslow
- Department of Biochemistry, Cornell University Medical College, New York, New York
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van Kesteren RE, Smit AB, de With ND, van Minnen J, Dirks RW, van der Schors RC, Joosse J. A vasopressin-related peptide in the mollusc Lymnaea stagnalis: peptide structure, prohormone organization, evolutionary and functional aspects of Lymnaea conopressin. PROGRESS IN BRAIN RESEARCH 1992; 92:47-57. [PMID: 1302887 DOI: 10.1016/s0079-6123(08)61164-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- R E van Kesteren
- Faculty of Biology, Unit Molecular Neurobiology/Endocrinology, Vrije Universiteit, Amsterdam, The Netherlands
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Michel G, Chauvet J, Acher R. The hormone-binding site of neurophysins: binding of vasopressin to the N-terminal sub-domain dissected from human MSEL-neurophysin through endopeptidase Lys-C. Neuropeptides 1991; 20:211-6. [PMID: 1812403 DOI: 10.1016/0143-4179(91)90010-g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Human MSEL-neurophysin has been dissected into two halves by endopeptidase Lys-C, taking advantage of a peculiar Lys59-Ala60 bond. Two sub-domains, N-terminal (1-59) and C-terminal (60-93), have been separated. These sub-domains have been purified by reverse-phase high pressure liquid chromatography and identified by their N-terminal sequences. The N-terminal fragment comprises two chains 1-18 and 19-59, because of the presence of a second lysine residue in position 18, whereas the C-terminal fragment (60-93) is a single chain. Hormone-binding experiments have been carried out using vasopressin or vasopressinyl-Gly-Lys-Arg and testing the ability of the hormone-neurophysin complex to precipitate at pH 3.9 with 10% NaCl. The N-terminal sub-domain precipitates in presence of vasopressin in the same way as native neurophysin whereas the C-terminal sub-domain does not. It can be concluded that the hormone-binding site is located in the 1-59 region of neurophysin.
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Affiliation(s)
- G Michel
- Laboratory of Biological Chemistry, University of Paris VI 96, France
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Davis CB, Smith KE, Campbell BN, Hammes GG. The ATP binding site of the yeast plasma membrane proton-translocating ATPase. J Biol Chem 1990. [DOI: 10.1016/s0021-9258(19)40013-6] [Citation(s) in RCA: 11] [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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Breslow E, Co RT, Hanna P, Laborde T. Influence of neurophysin residues 1-8 on the optical activity of neurophysin-peptide complexes. Direct evidence that the 1-8 sequence alters the environment of bound peptide. INTERNATIONAL JOURNAL OF PEPTIDE AND PROTEIN RESEARCH 1989; 34:21-7. [PMID: 2793306 DOI: 10.1111/j.1399-3011.1989.tb01002.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Circular dichroism was used to compare the environment of peptides bound to native and des 1-8 neurophysin in order to further elucidate the role of the neurophysin 1-8 sequence in peptide-binding. A very large positive ellipticity (approximately 6000 deg cm2 dmol-1), shown earlier to be induced in tyrosine at position 2 of peptides bound to the native protein, was determined by the present study to be paralleled by similar induced changes in tyrosine at peptide position 1. Deletion of the neurophysin 1-8 sequence led to loss of half of the induced optical activity at peptide positions 1 and 2 and changes in binding-induced optical activity in the protein, the latter partially assignable to protein disulfides. In the mononitrated native and des 1-8 proteins, the optical activity of neurophysin Tyr-49, a residue at the peptide-binding site, was reduced by 80% in complexes of the des 1-8 protein relative to those of the native protein. The results suggest a role for neurophysin Arg-8 in modulating the optical activity at the binding site by directly placing a charge proximal to the binding site and/or by altering binding site conformation. The data provide the first unambiguous evidence of a difference in the environment of bound peptide between the native and des 1-8 proteins.
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Affiliation(s)
- E Breslow
- Department of Biochemistry, Cornell University Medical College, New York, NY
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Structural requirements of peptide hormone binding for peptide-potentiated self-association of bovine neurophysin II. J Biol Chem 1988. [DOI: 10.1016/s0021-9258(18)68275-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Maliarik MJ, Goldstein IJ. Photoaffinity labeling of the adenine binding site of the lectins from lima bean, Phaseolus lunatus, and the kidney bean, Phaseolus vulgaris. J Biol Chem 1988. [DOI: 10.1016/s0021-9258(18)37953-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Peyton D, Sardana V, Breslow E. Application of peptide-mediated ring current shifts to the study of neurophysin-peptide interactions: a partial model of the neurophysin-peptide complex. Biochemistry 1987; 26:1518-25. [PMID: 3593676 DOI: 10.1021/bi00380a004] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Perdeuteriated peptides were synthesized that are capable of binding to the hormone binding site of neurophysin but that differ in the position of aromatic residues. The binding of these peptides to bovine neurophysin I and its des-1-8 derivative was studied by proton nuclear magnetic resonance spectroscopy in order to identify protein residues near the binding site through the observation of differential ring current effects on assignable protein resonances. Phenylalanine in position 3 of bound peptides was shown to induce significant ring current shifts in several resonances assignable to the 1-8 sequence, including those of Leu-3 and/or Leu-5, but was without effect on Tyr-49 ring protons. The magnitude of these shifts was dependent on the identity of peptide residue 1. By contrast, the sole demonstrable direct effect of an aromatic residue in position 1 was a downfield shift in Tyr-49 ring protons. Study of peptide binding to des-1-8-neurophysin demonstrated similar conformations of native and des-1-8 complexes except for the environment of Tyr-49, confirmed the peptide-induced ring current shift assignments in native neurophysin, and indicated an effect of binding on Thr-9. These observations are integrated with other results to provide a partial model of neurophysin-peptide complexes that places the ring of Tyr-49 at a distance 5-10 A from residue 1 of bound peptide and that places both the 1-8 sequence and the protein backbone region containing Tyr-49 proximal to each other and to peptide residue 3.(ABSTRACT TRUNCATED AT 250 WORDS)
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Abercrombie DM, Chaiken IM. Oxytocin and vasopressin: photoaffinity labeling of neurophysins, secretory granule hormone-binding proteins. Pharmacol Ther 1987; 33:209-19. [PMID: 3310032 DOI: 10.1016/0163-7258(87)90065-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- D M Abercrombie
- Molecular, Cellular, and Nutritional Endocrinology Branch, National Institute of Arthritis, Bethesda, Maryland 20892
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Sagar SM, Martin JB. Hypothalamohypophysiotropic Peptide Systems. Compr Physiol 1986. [DOI: 10.1002/cphy.cp010408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Peyton D, Sardana V, Breslow E. Dimerization of native and proteolytically modified neurophysins as monitored by proton magnetic resonance spectroscopy: proximity of tyrosine-49 to the subunit interface. Biochemistry 1986; 25:6579-86. [PMID: 3790544 DOI: 10.1021/bi00369a036] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Neurophysin is a self-associating protein in which peptide-hormone binding and dimerization are thermodynamically linked. The structural basis of the linkage is unknown. We have studied the dimerization of bovine neurophysin I and two proteolytically modified derivatives by proton nuclear magnetic resonance spectroscopy in order to identify residues at the intersubunit contact regions and to evaluate the origin of the reported loss of dimerization associated with tryptic excision of residues 1-8. The concentration dependence at neural pH of the spectra of native neurophysin and des-90-92-neurophysin demonstrated a finite set of dimerization-sensitive resonances that included the ring protons of Tyr-49. Using these to monitor dimerization, we confirmed predictions of a large increase in the dimerization constant associated with carboxyl protonation. By the same criteria, dimerization of the des-1-8 protein, in disagreement with earlier reports, was found to be undiminished relative to that of the native protein. However, spectral changes in the Tyr-49 ring ortho proton region associated with dimerization of the des-1-8 protein differed significantly from those in the native protein and indicated an altered conformation of the des-1-8 dimer apparently restricted to the vicinity of Tyr-49. The results are shown to place Tyr-49 adjacent to both the intersubunit contact region and the 1-8 sequence in the native protein, loss of stabilizing interactions with 1-8 leading to altered interactions of Tyr-49 with the subunit interface. Because Tyr-49 is also close to the peptide-binding site, this arrangement spatially links the peptide-binding and dimerization sites of neurophysin.(ABSTRACT TRUNCATED AT 250 WORDS)
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Peyton D, Breslow E. Use of perdeuterated peptides in NMR studies of neurophysin-hormone interaction: demonstration of peptide-specific changes in neurophysin resonances. Biochem Biophys Res Commun 1985; 128:1211-8. [PMID: 4004858 DOI: 10.1016/0006-291x(85)91069-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The effects on bovine neurophysin-I of binding the perdeuterated peptides Phe-PheNH2 and Leu-PheNH2 were compared by proton NMR. A unique difference between the two peptides in their effects on Tyr-49 ring protons indicated proximity of the Tyr-49 ring to the side-chain of position 1 of bound peptide. Non-deuterated oligopeptides containing Phe in position 3 and no methyl groups induced different changes in neurophysin methyl resonances than dipeptides, suggesting shielding of one or more protein methyl groups by Phe-3. The results demonstrate that the identity of neurophysin residues at the hormone-binding site can be probed by analysis of changes induced in the protein spectrum by systematically related NMR-transparent peptides.
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Sardana V, Breslow E. Proton magnetic resonance and binding studies of proteolytically modified neurophysins. J Biol Chem 1984. [DOI: 10.1016/s0021-9258(17)43148-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Virmani-Sardana V, Breslow E. Effects of peptide-binding on the proton n.m.r. spectrum of bovine neurophysin-I. INTERNATIONAL JOURNAL OF PEPTIDE AND PROTEIN RESEARCH 1983; 21:182-9. [PMID: 6832890 DOI: 10.1111/j.1399-3011.1983.tb03091.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The effects of binding L-phenylalanyl-L-phenylalanine amide and related peptides on the 220 MHz and 300 MHz proton n.m.r. spectra of bovine neurophysin-I were studied. Throughout both the aliphatic and aromatic proton regions, marked binding-induced changes in the protein spectrum occur which are best explained by invoking conformational change within the neurophysin dimer, in addition to direct perturbation of individual protein protons by bound peptide. In the region downfield from 6 p.p.m., a new resonance, centered at 6.45 p.p.m. was resolved in 300 MHz spectra. This resonance is tentatively assigned to a non-exchangeable -NH and undergoes a reversible binding-induced broadening. Also in this region, the binding-induced chemical shift change in the ortho ring protons of Tyr-49 was used to explore additional aspects of the kinetics of peptide-binding. The results indicate that peptides with affinities greater than or equal to 10(4) M-1 exhibit slow to intermediate exchange rates on the time scale of the Tyr-49 chemical shift change, but that fast exchange can be achieved with peptides having affinities approximately equal to 10(2) M-1.
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Chaiken IM. Neurophysin-neuropeptide hormone complexes: biosynthetic origin and noncovalent interactions. Biopolymers 1983; 22:355-62. [PMID: 6673764 DOI: 10.1002/bip.360220146] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Abercrombie DM, Hough CJ, Seeman JR, Brownstein MJ, Gainer H, Russell JT, Chaiken IM. Use of reverse-phase high-performance liquid chromatography in structural studies of neurophysins, photolabeled derivatives, and biosynthetic precursors. Anal Biochem 1982; 125:395-405. [PMID: 7181098 DOI: 10.1016/0003-2697(82)90021-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Breslow E, Pagnozzi M, Co RT. Chemical modification or excision of neurophysin arginine-8 is associated with loss of peptide-binding ability. Biochem Biophys Res Commun 1982; 106:194-201. [PMID: 7103980 DOI: 10.1016/0006-291x(82)92077-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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