1RF1

Crystal Structure of Fragment D of gammaE132A Fibrinogen with the Peptide Ligand Gly-His-Arg-Pro-amide

• PDB DOI:  https://doi.org/10.2210/pdb1RF1/pdb

• Classification: BLOOD CLOTTING
• Organism(s): Homo sapiens
• Expression System: Cricetulus griseus
• Mutation(s): Yes 


• Deposited: 2003-11-07 Released: 2004-03-16 
• Deposition Author(s): Kostelansky, M.S., Gorkun, O.V., Lord, S.T.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.53 Å
• R-Value Free: 0.281 
• R-Value Work: 0.234 
• R-Value Observed: 0.234 

Literature

Calcium-Binding Site beta2, Adjacent to the "b" Polymerization Site, Modulates Lateral Aggregation of Protofibrils during Fibrin Polymerization.

Kostelansky, M.S., Lounes, K.C., Ping, L.F., Dickerson, S.K., Gorkun, O.V., Lord, S.T.

(2004) Biochemistry 43: 2475-2483

• PubMed: 14992585 
• DOI: https://doi.org/10.1021/bi0359978
• Primary Citation of Related Structures:  
  1RF0, 1RF1


• PubMed Abstract: 
  

Structural analysis of recombinant fibrinogen fragment D revealed that the calcium-binding site (beta2-site) composed of residues BbetaAsp261, BbetaAsp398, BbetaGly263, and gammaGlu132 is modulated by the "B:b" interaction. To determine the beta2-site's role in polymerization, we engineered variant fibrinogen gammaE132A in which calcium binding to the beta2-site was disrupted by replacing glutamic acid at gamma132 with alanine. We compared polymerization of gammaE132A to normal fibrinogen as a function of calcium concentration. Polymerization of gammaE132A at concentrations of calcium

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Organizational Affiliation: 

Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina 27599-7525, USA.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 5-mer - A2B1C1D1 Local Symmetry: Cyclic - C2  (3D View)
Local Stoichiometry: Homo 2-mer - A2 

Local Symmetry: Cyclic - C2  (3D View)
Local Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly 2  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 5-mer - A2B1C1D1 Local Symmetry: Cyclic - C2  (3D View)
Local Stoichiometry: Homo 2-mer - A2 

Local Symmetry: Cyclic - C2  (3D View)
Local Stoichiometry: Homo 2-mer - A2 

Biological assembly 2 assigned by authors.

Macromolecule Content

• Total Structure Weight: 160.87 kDa 
• Atom Count: 10,928 
• Modelled Residue Count: 1,319 
• Deposited Residue Count: 1,396 
• Unique protein chains: 4

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Fibrinogen alpha/alpha-E chain	A, D	66	Homo sapiens	Mutation(s): 0  Gene Names: FGA
UniProt & NIH Common Fund Data Resources
Find proteins for P02671 (Homo sapiens) Explore P02671  Go to UniProtKB:  P02671
PHAROS:  P02671

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Fibrinogen beta chain	B, E	313	Homo sapiens	Mutation(s): 0  Gene Names: FGB
UniProt & NIH Common Fund Data Resources
Find proteins for P02675 (Homo sapiens) Explore P02675  Go to UniProtKB:  P02675
PHAROS:  P02675

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Fibrinogen gamma chain	C, F	311	Homo sapiens	Mutation(s): 1  Gene Names: FGG, PRO2061
UniProt & NIH Common Fund Data Resources
Find proteins for P02679 (Homo sapiens) Explore P02679  Go to UniProtKB:  P02679
PHAROS:  P02679

Entity ID: 4
Molecule	Chains	Sequence Length	Organism	Details	Image
GHRP peptide	G, H, I, J	4	N/A	Mutation(s): 0

Oligosaccharides

Help

Entity ID: 5
Molecule	Chains	Chain Length	2D Diagram	Glycosylation
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose	K, L	3		N-Glycosylation
Glycosylation Resources
GlyTouCan:  G21290RB GlyCosmos:  G21290RB GlyGen:  G21290RB

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CA	M [auth B], N [auth C], O [auth E], P [auth F]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.53 Å
• R-Value Free: 0.281 
• R-Value Work: 0.234 
• R-Value Observed: 0.234 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 89.714	α = 90
b = 94.683	β = 90
c = 228.198	γ = 90

Software Package:

Software Name	Purpose
CNS	refinement
HKL-2000	data reduction
SCALEPACK	data scaling
CNS	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2004-03-16 
Deposition Author(s): Kostelansky, M.S., Gorkun, O.V., Lord, S.T.

Revision History  

• Version 1.0: 2004-03-16
  Type: Initial release
  
• Version 1.1: 2008-04-29
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Non-polymer description, Version format compliance
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Atomic model, Data collection, Derived calculations, Structure summary
• Version 2.1: 2021-10-27
  Changes: Database references, Structure summary
• Version 2.2: 2023-08-23
  Changes: Data collection, Refinement description