Macromolecule Content

• Total Structure Weight: 4537.27 
• Atom Count: 318 
• Residue Count: 39 
• Unique protein chains: 1

1BWX

THE SOLUTION STRUCTURE OF HUMAN PARATHYROID HORMONE FRAGMENT 1-39, NMR, 10 STRUCTURES

• DOI: 10.2210/pdb1BWX/pdb

• Classification: PEPTIDE HORMONE
• Organism(s): Homo sapiens


• Deposited: 1998-09-29 Released: 2000-01-14 
• Deposition Author(s): Marx, U.C., Roesch, P., Adermann, K., Bayer, P., Forssmann, W.-G.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 30 
• Conformers Submitted: 10 
• Selection Criteria: ENERGY, AGREEMENT WITH EXPERIMENTAL DATA 

Literature

Solution structures of human parathyroid hormone fragments hPTH(1-34) and hPTH(1-39) and bovine parathyroid hormone fragment bPTH(1-37).

Marx, U.C., Adermann, K., Bayer, P., Forssmann, W.G., Rosch, P.

(2000) Biochem.Biophys.Res.Commun. 267: 213-220

• PubMed: 10623601 
• DOI: 10.1006/bbrc.1999.1958
• Primary Citation of Related Structures:  
  1ZWC, 1ZWA, 1HPY


• PubMed Abstract: 
  

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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Organizational Affiliation: 

Lehrstuhl für Biopolymere, Universität Bayreuth, Bayreuth, D-95440, Germany. [e-mail]

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
PARATHYROID HORMONE	A	39	Homo sapiens	Mutation(s): 0  Gene Names: PTH
Find proteins for P01270 (Homo sapiens) Go to Gene View: PTH Go to UniProtKB:  P01270

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 30 
• Conformers Submitted: 10 
• Selection Criteria: ENERGY, AGREEMENT WITH EXPERIMENTAL DATA 
• Olderado: 1BWX Olderado

Software Package:

Software Name	Purpose
X-PLOR	refinement
X-PLOR	model building
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1998-09-29 
• Released Date: 2000-01-14 
• Deposition Author(s): Marx, U.C., Roesch, P., Adermann, K., Bayer, P., Forssmann, W.-G.

Revision History 

• Version 1.0: 2000-01-14
  Type: Initial release
• Version 1.1: 2008-03-24
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance