1HRP

CRYSTAL STRUCTURE OF HUMAN CHORIONIC GONADOTROPIN


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3 Å
  • R-Value Free: 0.314 
  • R-Value Work: 0.218 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure of human chorionic gonadotropin.

Lapthorn, A.J.Harris, D.C.Littlejohn, A.Lustbader, J.W.Canfield, R.E.Machin, K.J.Morgan, F.J.Isaacs, N.W.

(1994) Nature 369: 455-461

  • DOI: 10.1038/369455a0

  • PubMed Abstract: 
  • The three-dimensional structure of human chorionic gonadotropin shows that each of its two different subunits has a similar topology, with three disulphide bonds forming a cystine knot. This same folding motif is found in some protein growth factors. ...

    The three-dimensional structure of human chorionic gonadotropin shows that each of its two different subunits has a similar topology, with three disulphide bonds forming a cystine knot. This same folding motif is found in some protein growth factors. The heterodimer is stabilized by a segment of the beta-subunit which wraps around the alpha-subunit and is covalently linked like a seat belt by the disulphide Cys 26-Cys 110. This extraordinary feature appears to be essential not only for the association of these heterodimers but also for receptor binding by the glycoprotein hormones.


    Related Citations: 
    • Preliminary X-Ray Diffraction Analysis of Human Chorionic Gonadotropin
      Harris, D.C.,Machin, K.J.,Evin, G.M.,Morgan, F.J.,Isaacs, N.W.
      (1989) J.Biol.Chem. 264: 6705


    Organizational Affiliation

    Department of Chemistry, University of Glasgow, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
HUMAN CHORIONIC GONADOTROPIN
A
92Homo sapiensMutation(s): 0 
Gene Names: CGA
Find proteins for P01215 (Homo sapiens)
Go to Gene View: CGA
Go to UniProtKB:  P01215
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
HUMAN CHORIONIC GONADOTROPIN
B
145Homo sapiensMutation(s): 0 
Gene Names: CGB3, CGB5, CGB8 (CGB)
Find proteins for P0DN86 (Homo sapiens)
Go to Gene View: CGB3 CGB5 CGB8
Go to UniProtKB:  P0DN86
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NAG
Query on NAG

Download SDF File 
Download CCD File 
A, B
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3 Å
  • R-Value Free: 0.314 
  • R-Value Work: 0.218 
  • Space Group: P 65 2 2
Unit Cell:
Length (Å)Angle (°)
a = 88.680α = 90.00
b = 88.680β = 90.00
c = 177.240γ = 120.00
Software Package:
Software NamePurpose
X-PLORrefinement
X-PLORphasing
X-PLORmodel building

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1994-11-01
    Type: Initial release
  • Version 1.1: 2008-03-03
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Non-polymer description, Version format compliance