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 

wwPDB Validation 3D Report Full Report


This is version 1.2 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

  • 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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
TRANSFORMING GROWTH FACTOR, BETA 2
A
112Homo sapiensMutation(s): 0 
Gene Names: TGFB2
Find proteins for P61812 (Homo sapiens)
Go to Gene View: TGFB2
Go to UniProtKB:  P61812
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Work: 0.194 
  • Space Group: P 32 2 1
Unit Cell:
Length (Å)Angle (°)
a = 60.600α = 90.00
b = 60.600β = 90.00
c = 75.200γ = 120.00
Software Package:
Software NamePurpose
X-PLORrefinement
TNTrefinement
X-PLORphasing
X-PLORmodel building

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1993-10-31
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Version format compliance