1N8E

Fragment Double-D from Human Fibrin


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 4.50 Å
  • R-Value Free: 0.416 
  • R-Value Work: 0.415 
  • R-Value Observed: 0.415 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

The Crystal Structure of Fragment Double-D from Cross-Linked Lamprey Fibrin Reveals Isopeptide Linkages across an Unexpected D-D Interface

Yang, Z.Pandi, L.Doolittle, R.F.

(2002) Biochemistry 41: 15610-15617

  • DOI: 10.1021/bi026666i
  • Primary Citation of Related Structures:  
    1N73, 1N86, 1N8E

  • PubMed Abstract: 
  • The crystal structure of fragment double-D from factor XIII-cross-linked lamprey fibrin has been determined at 2.9 A resolution. The 180 kDa covalent dimer was cocrystallized with the peptide Gly-His-Arg-Pro-amide, which in many fibrinogens, but not that of lamprey, corresponds to the B-knob exposed by thrombin ...

    The crystal structure of fragment double-D from factor XIII-cross-linked lamprey fibrin has been determined at 2.9 A resolution. The 180 kDa covalent dimer was cocrystallized with the peptide Gly-His-Arg-Pro-amide, which in many fibrinogens, but not that of lamprey, corresponds to the B-knob exposed by thrombin. The structure was determined by molecular replacement, a recently determined structure of lamprey fragment D being used as a search model. GHRPam was found in both the gamma- and beta-chain holes. Unlike the situation with fragment D, the crystal packing of the cross-linked double-D structure exhibits two different D-D interfaces, each gamma-chain facing gamma-chains on two other molecules. One of these (interface I) involves the asymmetric interface observed in all other D fragments and related structures. The other (interface II) encompasses a completely different set of residues. The two abutments differ in that interface I results in an "in line" arrangement of abutting molecules and the interface II in a "zigzag" arrangement. So far as can be determined (the electron density could only be traced on one side of the cross-links), it is the gamma-chains of the newly observed zigzag units (interface II) that are joined by the reciprocal epsilon-amino-gamma-glutamyl cross-links. Auspiciously, the same novel D-D interface was observed in two lower-resolution crystal structures of human double-D preparations that had been crystallized under unusual circumstances. These observations show that double-D structures are linked in a way that is sufficiently flexible to accommodate different D-D interfaces under different circumstances.


    Related Citations: 
    • Crystal Structure of Fragment Double-D from Human Fibrin with Two Different Bound Ligands
      Everse, S.J., Spraggon, G., Veerapandian, L., Riley, M., Doolittle, R.F.
      (1998) Biochemistry 37: 8637

    Organizational Affiliation

    Center for Molecular Genetics, University of California at San Diego, La Jolla, CA 92093-0634, USA.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Fibrin alpha/alpha-E chainA, D89Homo sapiensMutation(s): 0 
Gene Names: FGA
Find proteins for P02671 (Homo sapiens)
Explore P02671 
Go to UniProtKB:  P02671
NIH Common Fund Data Resources
PHAROS:  P02671
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Fibrin beta chainB, E328Homo sapiensMutation(s): 0 
Gene Names: FGB
Find proteins for P02675 (Homo sapiens)
Explore P02675 
Go to UniProtKB:  P02675
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PHAROS:  P02675
Protein Feature View
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  • Reference Sequence
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Fibrin gamma chainC, F324Homo sapiensMutation(s): 0 
Gene Names: FGGPRO2061
Find proteins for P02679 (Homo sapiens)
Explore P02679 
Go to UniProtKB:  P02679
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PHAROS:  P02679
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 4.50 Å
  • R-Value Free: 0.416 
  • R-Value Work: 0.415 
  • R-Value Observed: 0.415 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 50α = 90
b = 125.35β = 90
c = 312.06γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing
CNSrefinement

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2003-01-07
    Type: Initial release
  • Version 1.1: 2008-04-28
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance