2TGI

CRYSTAL STRUCTURE OF TRANSFORMING GROWTH FACTOR-BETA2: AN UNUSUAL FOLD FOR THE SUPERFAMILY


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Crystal structure of transforming growth factor-beta 2: an unusual fold for the superfamily.

Daopin, S.Piez, K.A.Ogawa, Y.Davies, D.R.

(1992) Science 257: 369-373


  • PubMed Abstract: 
  • The transforming growth factors-beta (TGF-beta 1 through -beta 5) are a family of homodimeric cytokines that regulate proliferation and function in many cell types. Family members have 66 to 80% sequence identity and nine strictly conserved cysteines ...

    The transforming growth factors-beta (TGF-beta 1 through -beta 5) are a family of homodimeric cytokines that regulate proliferation and function in many cell types. Family members have 66 to 80% sequence identity and nine strictly conserved cysteines. A crystal structure of a member of this family, TGF-beta 2, has been determined at 2.1 angstrom (A) resolution and refined to an R factor of 0.172. The monomer lacks a well-defined hydrophobic core and displays an unusual elongated nonglobular fold with dimensions of approximately 60 A by 20 A by 15 A. Eight cysteines form four intrachain disulfide bonds, which are clustered in a core region forming a network complementary to the network of hydrogen bonds. The dimer is stabilized by the ninth cysteine, which forms an interchain disulfide bond, and by two identical hydrophobic interfaces. Sequence profile analysis of other members of the TGF-beta superfamily, including the activins, inhibins, and several developmental factors, imply that they also adopt the TGF-beta fold.


    Related Citations: 
    • Crystal Structure of Tgf-Beta2 Refined at 1.8 Angstroms Resolution
      Daopin, S.,Li, M.,Davies, D.R.
      (1993) Proteins 17: 176


    Organizational Affiliation

    Laboratory of Molecular Biology, National Institute of Diabetes, Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
TRANSFORMING GROWTH FACTOR ,BETA 2
A
112Homo sapiensGene 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: 1.8 Å
  • Space Group: P 32 2 1
Unit Cell:
Length (Å)Angle (°)
a = 60.600α = 90.00
b = 60.600β = 90.00
c = 75.300γ = 120.00
Software Package:
Software NamePurpose
TNTrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1994-01-31
    Type: Initial release
  • Version 1.1: 2008-03-25
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Version format compliance
  • Version 1.3: 2017-11-29
    Type: Derived calculations, Other