Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 39.98 kDa 
• Atom Count: 3,079 
• Modelled Residue Count: 368 
• Deposited Residue Count: 368 
• Unique protein chains: 1

 1FNF

FRAGMENT OF HUMAN FIBRONECTIN ENCOMPASSING TYPE-III REPEATS 7 THROUGH 10

• PDB DOI: 10.2210/pdb1FNF/pdb

• Classification: CELL ADHESION PROTEIN
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 1995-09-30 Released: 1996-01-29 
• Deposition Author(s): Leahy, D.J., Aukhil, I., Erickson, H.P.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.308 
• R-Value Work: 0.216 
• R-Value Observed: 0.216 

Literature

2.0 A crystal structure of a four-domain segment of human fibronectin encompassing the RGD loop and synergy region.

Leahy, D.J., Aukhil, I., Erickson, H.P.

(1996) Cell 84: 155-164

• PubMed: 8548820 
• DOI: 10.1016/s0092-8674(00)81002-8
• Primary Citation of Related Structures:  
  1FNF


• PubMed Abstract: 
  

We have determined the 2.0 A crystal structure of a fragment of human fibronectin encompassing the seventh through the RGD-containing tenth type III repeats (FN7-10). The structure reveals an extended rod-like molecule with a long axis of approximately 140 A and highly variable relationships between adjacent domains. An unusually small rotation between domains 9 and 10 creates a distinctive binding site, in which the RGD loop from domain 10 and the "synergy" region from domain 9 are on the same face of FN7-10 and thus easily accessible to a single integrin molecule. The cell-binding RGD loop is well-ordered in this structure and extends approximately 10 A away from the FN7-10 core.

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Related Citations: 

• Crystallization of a Fragment of Human Fibronectin: Introduction of Methionine by Site-Directed Mutagenesis to Allow Phasing Via Selenomethionine
  Leahy, D.J., Erickson, H.P., Aukhil, I., Joshi, P., Hendrickson, W.A.
  (1994) Proteins 19: 48

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Organizational Affiliation: 

Department of Biophysics and Biophysical Chemistry, Johns Hopkins University School of Medicine, Baltimore, Maryland 21218, USA.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
FIBRONECTIN	A	368	Homo sapiens	Mutation(s): 0  Gene Names: FN1, FN
UniProt & NIH Common Fund Data Resources
Find proteins for P02751 (Homo sapiens) Explore P02751  Go to UniProtKB:  P02751
PHAROS:  P02751

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.308 
• R-Value Work: 0.216 
• R-Value Observed: 0.216 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 64.05	α = 90
b = 60.67	β = 103
c = 58.44	γ = 90

Software Package:

Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
DENZO	data reduction
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 1996-01-29 
Deposition Author(s): Leahy, D.J., Aukhil, I., Erickson, H.P.

Revision History  

• Version 1.0: 1996-01-29
  Type: Initial release
  
• Version 1.1: 2008-03-03
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance