1HI7

NMR SOLUTION STRUCTURE OF THE DISULPHIDE-LINKED HOMODIMER OF HUMAN TFF1, 10 STRUCTURES

• PDB DOI: https://doi.org/10.2210/pdb1HI7/pdb
• BMRB: 4930

• Classification: GROWTH FACTOR
• Organism(s): Homo sapiens
• Expression System: Escherichia coli HB101
• Mutation(s): No 


• Deposited: 2001-01-03 Released: 2001-01-03 
• Deposition Author(s): Williams, M.A., Feeney, J.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 11 
• Conformers Submitted: 10 
• Selection Criteria: TOTAL NOE CONSTRAINT VIOLATIONS < 1.0 A 

Literature

The Solution Structure of the Disulphide-Linked Dimeric of the Human Trefoil Protein Tff1

Williams, M.A., Westley, B.R., May, F.E., Feeney, J.

(2001) FEBS Lett 493: 70

• PubMed: 11286998 
• DOI: https://doi.org/10.1016/s0014-5793(01)02276-1
• Primary Citation of Related Structures:  
  1HI7


• PubMed Abstract: 
  

  The trefoil factor family protein, TFF1, forms a homodimer, via a disulphide linkage, that has greater activity in wound healing assays than the monomer. Having previously determined a high-resolution solution structure of a monomeric analogue of TFF1, we now investigate the structure of the homodimer formed by the native sequence. The two putative receptor/ligand recognition domains are found to be well separated, at opposite ends of a flexible linker. This contrasts sharply with the known fixed and compact arrangement of the two trefoil domains of the closely related TFF2, and has significant implications for the mechanism of action and functional specificity of the TFF of proteins.

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Organizational Affiliation: 

Molecular Structure Division, National Institute for Medical Research, Mill Hill London NW7 1AA, UK. [e-mail]

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 13.36 kDa 
• Atom Count: 928 
• Modelled Residue Count: 120 
• Deposited Residue Count: 120 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
PS2 PROTEIN	A, B	60	Homo sapiens	Mutation(s): 0  Gene Names: TFF1
UniProt & NIH Common Fund Data Resources
Find proteins for P04155 (Homo sapiens) Explore P04155  Go to UniProtKB:  P04155
PHAROS:  P04155 GTEx:  ENSG00000160182

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 11 
• Conformers Submitted: 10 
• Selection Criteria: TOTAL NOE CONSTRAINT VIOLATIONS < 1.0 A 

Structure Validation

Entry History 

Deposition Data

• Released Date: 2001-01-03 
Deposition Author(s): Williams, M.A., Feeney, J.

Revision History  

• Version 1.0: 2001-01-03
  Type: Initial release
  
• Version 1.1: 2011-05-08
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2017-06-14
  Changes: Structure summary
• Version 1.4: 2019-04-10
  Changes: Data collection, Source and taxonomy
• Version 1.5: 2024-10-09
  Changes: Data collection, Database references, Other, Structure summary