Macromolecule Content

• Total Structure Weight: 4135.86 
• Atom Count: 290 
• Residue Count: 34 
• Unique protein chains: 1

1ZWE

STRUCTURE OF HUMAN PARATHYROID HORMONE FRAGMENT 4-37, NMR, 10 STRUCTURES

• DOI: 10.2210/pdb1ZWE/pdb

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


• Deposited: 1996-06-17 Released: 1997-03-12 
• Deposition Author(s): Roesch, P., Marx, U.C.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Submitted: 10 

Literature

Structure-activity relation of NH2-terminal human parathyroid hormone fragments.

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

(1998) J.Biol.Chem. 273: 4308-4316

• PubMed: 9468478 
• Primary Citation of Related Structures:  
  1ZWD, 1ZWB


• PubMed Abstract: 
  

Human parathyroid hormone (hPTH) is involved in the regulation of the calcium level in blood. This hormone function is located in the NH2-terminal 34 amino acids of the 84-amino acid peptide hormone and is transduced via the adenylate cyclase and the phosphatidylinositol signaling pathways. It is well known that truncation of the two NH2-terminal amino acids of the hormone leads to complete loss of in vivo normocalcemic function. To correlate loss of calcium level regulatory activity after stepwise NH2-terminal truncation and solution structure, we studied the conformations of fragments hPTH-(2-37), hPTH-(3-37), and hPTH-(4-37) in comparison to hPTH-(1-37) in aqueous buffer solution under near physiological conditions by circular dichroism spectroscopy, two-dimensional nuclear magnetic resonance spectroscopy, and restrained molecular dynamics calculations. All peptides show helical structures and hydrophobic interactions between Leu-15 and Trp-23 that lead to a defined loop region from His-14 to Ser-17. A COOH-terminal helix from Met-18 to at least Leu-28 was found for all peptides. The helical structure in the NH2-terminal part of the peptides was lost in parallel with the NH2-terminal truncation and can be correlated with the loss of calcium regulatory activity.

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Organizational Affiliation: 

Lehrstuhl für Biopolymere, Universität Bayreuth, D-95440 Bayreuth, Federal Republic of Germany.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
PARATHYROID HORMONE	A	34	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 Submitted: 10 
• Olderado: 1ZWE Olderado

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1996-06-17 
• Released Date: 1997-03-12 
• Deposition Author(s): Roesch, P., Marx, U.C.

Revision History 

• Version 1.0: 1997-03-12
  Type: Initial release
• Version 1.1: 2008-03-21
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance