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1zwa

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[[Image:1zwa.gif|left|200px]]
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{{STRUCTURE_1zwa| PDB=1zwa | SCENE= }}
{{STRUCTURE_1zwa| PDB=1zwa | SCENE= }}
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'''STRUCTURE OF HUMAN PARATHYROID HORMONE FRAGMENT 1-34, NMR, 10 STRUCTURES'''
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===STRUCTURE OF HUMAN PARATHYROID HORMONE FRAGMENT 1-34, NMR, 10 STRUCTURES===
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==Overview==
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Parathyroid hormone (PTH) is involved in regulation of the calcium level in blood and has an influence on bone metabolism, thus playing a role in osteoporosis therapy. In this study, the structures of the human PTH fragments (1-34) and (1-39) as well as bovine PTH(1-37) in aqueous buffer solution under near physiological conditions were determined using two-dimensional nuclear magnetic resonance spectroscopy. The overall structure of the first 34 amino acids of these three peptides is virtually identical, exhibiting a short NH(2)-terminal and a longer COOH-terminal helix as well as a defined loop region from His14 to Ser17, stabilized by hydrophobic interactions. bPTH(1-37), which has a higher biological activity, shows a better-defined NH(2)-terminal part. In contrast to NH(2)-terminal truncations, which cause destabilization of helical structure, neither COOH-terminal truncation nor elongation significantly influences the secondary structure. Furthermore, we investigated the structure of hPTH(1-34) in 20% trifluoroethanol solution. In addition to its helix-stabilizing effect, trifluorethanol causes the loss of tertiary hydrophobic interactions.
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{{ABSTRACT_PUBMED_10623601}}
==About this Structure==
==About this Structure==
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1ZWA is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ZWA OCA].
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1ZWA is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ZWA OCA].
==Reference==
==Reference==
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[[Category: Hormone]]
[[Category: Hormone]]
[[Category: Signal]]
[[Category: Signal]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 18:09:24 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Jul 27 23:41:38 2008''

Revision as of 20:41, 27 July 2008

Template:STRUCTURE 1zwa

STRUCTURE OF HUMAN PARATHYROID HORMONE FRAGMENT 1-34, NMR, 10 STRUCTURES

Template:ABSTRACT PUBMED 10623601

About this Structure

1ZWA is a Single protein structure of sequence from Homo sapiens. Full experimental information is available from OCA.

Reference

Solution structures of human parathyroid hormone fragments hPTH(1-34) and hPTH(1-39) and bovine parathyroid hormone fragment bPTH(1-37)., Marx UC, Adermann K, Bayer P, Forssmann WG, Rosch P, Biochem Biophys Res Commun. 2000 Jan 7;267(1):213-20. PMID:10623601

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