1YUG

TYPE ALPHA TRANSFORMING GROWTH FACTOR, NMR, 15 MODELS AFTER ECEPP/3 ENERGY MINIMIZATION


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Submitted: 15 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Solution structure of human type-alpha transforming growth factor determined by heteronuclear NMR spectroscopy and refined by energy minimization with restraints.

Moy, F.J.Li, Y.C.Rauenbuehler, P.Winkler, M.E.Scheraga, H.A.Montelione, G.T.

(1993) Biochemistry 32: 7334-7353

  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Human type-alpha transforming growth factor (hTGF alpha) is a small mitogenic protein containing 50 amino acids and 3 disulfide bonds. Homo- and heteronuclear NMR spectra were used to determine nearly complete sequence-specific 1H and 15N resonance a ...

    Human type-alpha transforming growth factor (hTGF alpha) is a small mitogenic protein containing 50 amino acids and 3 disulfide bonds. Homo- and heteronuclear NMR spectra were used to determine nearly complete sequence-specific 1H and 15N resonance assignments for hTGF alpha under three conditions: pH 6.5 and a temperature of 10 degrees C, pH 6.5 and a temperature of 30 degrees C, and pH 3.5 and a temperature of 30 degrees C. The 15N-enriched samples of hTGF alpha allowed determination of many 3J(HN-H alpha) vicinal coupling constants. Solution structures of human type-alpha transforming growth factor (hTGF alpha) at pH 6.5 and a temperature of 10 degrees C were determined from NMR data using molecular structure generation calculations and restrained energy minimization. These structures are based on 425 conformational constraints, including 357 NOE-derived upper-bound distance constraints, constraints on the ranges of 26 dihedral angles based on measurements of vicinal coupling constants, 42 upper- and lower-bound constraints associated with 6 hydrogen bonds and 3 disulfide bonds, and several stereospecific 1H resonance assignments. The overall structure is similar to that described recently for hTGF alpha by other groups [Kline et al. (1990) Biochemistry 29, 7805-7813; Harvey et al. (1991). Eur. J. Biochem. 198, 555-562], but there are differences in some structural details. The resonance frequencies, vicinal coupling constants, and NOEs form the basis for comparisons of the solution structure of hTGF alpha at neutral and acidic pH. At pH 3.5 the protein structure is partially disordered, with most of the hydrogen-bonded backbone structure still intact. The hTGF alpha structure is also compared with that of murine epidermal growth factor. Coordinates for the set of hTGF alpha structures described in this paper have been deposited in the Protein Data Bank.


    Related Citations: 
    • Human Type-Alpha Transforming Growth Factor Undergoes Slow Conformational Exchange between Multiple Backbone Conformations as Characterized by Nitrogen-15 Relaxation Measurements
      Li, Y.C.,Montelione, G.T.
      (1995) Biochemistry 34: 2408
    • Crankshaft Motions of the Polypeptide Backbone in Molecular Dynamics Simulations of Human Type-Alpha Transforming Growth Factor
      Fadel, A.R.,Jin, D.Q.,Montelione, G.T.,Levy, R.M.
      (1995) J.Biomol.NMR 6: 221
    • Sequence-Specific 1H-NMR Assignments and Identification of Two Small Antiparallel Beta-Sheets in the Solution Structure of Recombinant Human Transforming Growth Factor Alpha
      Montelione, G.T.,Winkler, M.E.,Burton, L.E.,Rinderknecht, E.,Sporn, M.B.,Wagner, G.
      (1989) Proc.Natl.Acad.Sci.USA 86: 1519


    Organizational Affiliation

    Baker Laboratory of Chemistry, Cornell University, Ithaca, New York 14853-1301.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
TRANSFORMING GROWTH FACTOR ALPHA
A
50Homo sapiensMutation(s): 0 
Gene Names: TGFA
Find proteins for P01135 (Homo sapiens)
Go to Gene View: TGFA
Go to UniProtKB:  P01135
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Submitted: 15 
  • Olderado: 1YUG Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1996-08-17
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance