3HQA

Crystal structure of human desarg-C5A


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.586 Å
  • R-Value Free: 0.253 
  • R-Value Work: 0.213 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Structure of human desArg-C5a.

Cook, W.J.Galakatos, N.Boyar, W.C.Walter, R.L.Ealick, S.E.

(2010) Acta Crystallogr.,Sect.D 66: 190-197

  • DOI: 10.1107/S0907444909049051
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The anaphylatoxin C5a is derived from the complement component C5 during activation of the complement cascade. It is an important component in the pathogenesis of a number of inflammatory diseases. NMR structures of human and porcine C5a have been re ...

    The anaphylatoxin C5a is derived from the complement component C5 during activation of the complement cascade. It is an important component in the pathogenesis of a number of inflammatory diseases. NMR structures of human and porcine C5a have been reported; these revealed a four-helix bundle stabilized by three disulfide bonds. The crystal structure of human desArg-C5a has now been determined in two crystal forms. Surprisingly, the protein crystallizes as a dimer and each monomer in the dimer has a three-helix core instead of the four-helix bundle noted in the NMR structure determinations. Furthermore, the N-terminal helices of the two monomers occupy different positions relative to the three-helix core and are completely different from the NMR structures. The physiological significance of these structural differences is unknown.


    Organizational Affiliation

    University of Alabama at Birmingham, Birmingham, AL 35294, USA. wjcook@uab.edu




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Complement C5
A, B
73Homo sapiensMutation(s): 0 
Gene Names: C5 (CPAMD4)
Find proteins for P01031 (Homo sapiens)
Go to Gene View: C5
Go to UniProtKB:  P01031
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.586 Å
  • R-Value Free: 0.253 
  • R-Value Work: 0.213 
  • Space Group: P 41 21 2
Unit Cell:
Length (Å)Angle (°)
a = 50.610α = 90.00
b = 50.610β = 90.00
c = 117.490γ = 90.00
Software Package:
Software NamePurpose
CNSrefinement
X-GENdata reduction
PHENIXrefinement
X-GENdata scaling
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-02-02
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2012-03-28
    Type: Database references
  • Version 1.3: 2017-11-01
    Type: Refinement description