Biological Assembly 1  

 3D View: Structure | Ligand Interaction

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Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 8297.54 
• Atom Count: 660 
• Residue Count: 68 
• Unique protein chains: 1

1ET1

CRYSTAL STRUCTURE OF HUMAN PARATHYROID HORMONE 1-34 AT 0.9 A RESOLUTION

• DOI: 10.2210/pdb1ET1/pdb

• Classification: HORMONE/GROWTH FACTOR
• Organism(s): Homo sapiens
• Expression System: Escherichia coli


• Deposited: 2000-04-12 Released: 2000-09-06 
• Deposition Author(s): Jin, L., Briggs, S.L., Chandrasekhar, S., Chirgadze, N.Y., Clawson, D.K., Schevitz, R.W., Smiley, D.L., Tashjian, A.H., Zhang, F.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 0.9 Å
• R-Value Free: 0.140 
• R-Value Work: 0.137 

Literature

Crystal structure of human parathyroid hormone 1-34 at 0.9-A resolution.

Jin, L., Briggs, S.L., Chandrasekhar, S., Chirgadze, N.Y., Clawson, D.K., Schevitz, R.W., Smiley, D.L., Tashjian, A.H., Zhang, F.

(2000) J.Biol.Chem. 275: 27238-27244

• PubMed: 10837469 
• DOI: 10.1074/jbc.M001134200
• Primary Citation of Related Structures:  
  1ET3, 1ET2


• PubMed Abstract: 
  

The N-terminal fragment 1-34 of parathyroid hormone (PTH), administered intermittently, results in increased bone formation in patients with osteoporosis. PTH and a related molecule, parathyroid hormone-related peptide (PTHrP), act on cells via a common PTH/PTHrP receptor. To define more precisely the ligand-receptor interactions, we have crystallized human PTH (hPTH)-(1-34) and determined the structure to 0.9-A resolution. hPTH-(1-34) crystallizes as a slightly bent, long helical dimer. Analysis reveals that the extended helical conformation of hPTH-(1-34) is the likely bioactive conformation. We have developed molecular models for the interaction of hPTH-(1-34) and hPTHrP-(1-34) with the PTH/PTHrP receptor. A receptor binding pocket for the N terminus of hPTH-(1-34) and a hydrophobic interface with the receptor for the C terminus of hPTH-(1-34) are proposed.

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Organizational Affiliation: 

Lilly Research Laboratories, Eli Lilly & Company, Indianapolis, Indiana 46285, USA.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
PARATHYROID HORMONE	A, B	34	Homo sapiens	Mutation(s): 0  Gene Names: PTH
Find proteins for P01270 (Homo sapiens) Go to Gene View: PTH Go to UniProtKB:  P01270

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
NA	A, B	SODIUM ION Na FKNQFGJONOIPTF-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 0.9 Å
• R-Value Free: 0.140 
• R-Value Work: 0.137 
• Space Group: P 6₅

Unit Cell:

Length (Å)	Angle (°)
a = 30.177	α = 90.00
b = 30.177	β = 90.00
c = 110.435	γ = 120.00

Software Package:

Software Name	Purpose
SOLVE	phasing
SHELXL-97	refinement
MAR345	data collection
HKL-2000	data scaling

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2000-04-12 
• Released Date: 2000-09-06 
• Deposition Author(s): Jin, L., Briggs, S.L., Chandrasekhar, S., Chirgadze, N.Y., Clawson, D.K., Schevitz, R.W., Smiley, D.L., Tashjian, A.H., Zhang, F.

Revision History 

• Version 1.0: 2000-09-06
  Type: Initial release
• Version 1.1: 2008-04-27
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance
• Version 1.3: 2017-10-04
  Type: Refinement description