1HRP

CRYSTAL STRUCTURE OF HUMAN CHORIONIC GONADOTROPIN


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.314 
  • R-Value Work: 0.218 
  • R-Value Observed: 0.218 

wwPDB Validation   3D Report Full Report


This is version 2.0 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
  • Primary Citation of Related Structures:  
    1HRP

  • 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 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 ...

    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:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
HUMAN CHORIONIC GONADOTROPINA92Homo sapiensMutation(s): 0 
Gene Names: CGA
UniProt & NIH Common Fund Data Resources
Find proteins for P01215 (Homo sapiens)
Explore P01215 
Go to UniProtKB:  P01215
PHAROS:  P01215
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
HUMAN CHORIONIC GONADOTROPINB145N/AMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for P0DN86 (Homo sapiens)
Explore P0DN86 
Go to UniProtKB:  P0DN86
PHAROS:  P0DN86
Protein Feature View
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  • Reference Sequence
Oligosaccharides

Help

Entity ID: 3
MoleculeChainsChain Length2D DiagramGlycosylation3D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranoseC, D2N-Glycosylation Oligosaccharides Interaction
Glycosylation Resources
GlyTouCan:  G42666HT
GlyCosmos:  G42666HT
GlyGen:  G42666HT
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NAG (Subject of Investigation/LOI)
Query on NAG

Download Ideal Coordinates CCD File 
E [auth B], F [auth B]2-acetamido-2-deoxy-beta-D-glucopyranose
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.314 
  • R-Value Work: 0.218 
  • R-Value Observed: 0.218 
  • Space Group: P 65 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 88.68α = 90
b = 88.68β = 90
c = 177.24γ = 120
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
X-PLORphasing

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1994-11-01
    Type: Initial release
  • Version 1.1: 2008-03-03
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Non-polymer description, Version format compliance
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Atomic model, Data collection, Database references, Derived calculations, Other, Structure summary