1TFG

AN UNUSUAL FEATURE REVEALED BY THE CRYSTAL STRUCTURE AT 2.2 ANGSTROMS RESOLUTION OF HUMAN TRANSFORMING GROWTH FACTOR-BETA2


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Work: 0.194 
  • R-Value Observed: 0.194 

wwPDB Validation 3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

An unusual feature revealed by the crystal structure at 2.2 A resolution of human transforming growth factor-beta 2.

Schlunegger, M.P.Grutter, M.G.

(1992) Nature 358: 430-434

  • DOI: 10.1038/358430a0
  • Primary Citation of Related Structures:  
    1TFG

  • PubMed Abstract: 
  • Transforming growth factor type beta 2 (TGF-beta 2) is a member of an expanding family of growth factors that regulate proliferation and differentiation of many different cell types. TGF-beta 2 binds to various receptors, one of which was shown to be ...

    Transforming growth factor type beta 2 (TGF-beta 2) is a member of an expanding family of growth factors that regulate proliferation and differentiation of many different cell types. TGF-beta 2 binds to various receptors, one of which was shown to be a serine/threonine kinase. TGF-beta 2 is involved in wound healing, bone formation and modulation of immune functions. We report here the crystal structure of TGF-beta 2 at 2.2 A resolution, which reveals a novel monomer fold and dimer association. The monomer consists of two antiparallel pairs of beta-strands forming a flat curved surface and a separate, long alpha-helix. The disulphide-rich core has one disulphide bone pointing through a ring formed by the sequence motifs Cys-Ala-Gly-Ala-Cys and Cys-Lys-Cys, which are themselves connected through the cysteines. Two monomers are connected through a single disulphide bridge and associate such that the helix of one subunit interacts with the concave beta-sheet surface of the other. Four exposed loop regions might determine receptor specificity. The structure provides a suitable model for the TGF-beta s and other members of the super-family and is the basis for the analysis of the TGF-beta 2 interactions with the receptor.


    Related Citations: 
    • Crystallization and Preliminary X-Ray Analysis of Recombinant Human Transforming Growth Factor Beta2
      Schlunegger, M.P., Cerletti, N., Cox, D.A., Mcmaster, G.K., Schmitz, A., Gruetter, M.G.
      (1992) FEBS Lett 303: 91
    • Crystal Structure of Transforming Growth Factor-Beta2: An Unusual Fold for the Superfamily
      Daopin, S., Piez, K.A., Ogawa, Y., Davies, D.R.
      (1992) Science 257: 369

    Organizational Affiliation

    Department of Biotechnology, Pharmaceuticals Division, Ciba-Geigy, Basel, Switzerland.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
TRANSFORMING GROWTH FACTOR, BETA 2A112Homo sapiensMutation(s): 0 
Gene Names: TGFB2
Find proteins for P61812 (Homo sapiens)
Explore P61812 
Go to UniProtKB:  P61812
NIH Common Fund Data Resources
PHAROS  P61812
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Work: 0.194 
  • R-Value Observed: 0.194 
  • Space Group: P 32 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 60.6α = 90
b = 60.6β = 90
c = 75.2γ = 120
Software Package:
Software NamePurpose
X-PLORmodel building
TNTrefinement
X-PLORrefinement
X-PLORphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1993-10-31
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Version format compliance
  • Version 1.3: 2019-07-17
    Changes: Data collection, Other, Refinement description
  • Version 1.4: 2019-08-14
    Changes: Data collection, Refinement description