1DOL

MONOCYTE CHEMOATTRACTANT PROTEIN 1, I-FORM


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.275 
  • R-Value Work: 0.200 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The structure of MCP-1 in two crystal forms provides a rare example of variable quaternary interactions.

Lubkowski, J.Bujacz, G.Boque, L.Domaille, P.J.Handel, T.M.Wlodawer, A.

(1997) Nat.Struct.Mol.Biol. 4: 64-69

  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The X-ray crystal structure of recombinant human monocyte chemoattractant protein (MCP-1) has been solved in two crystal forms. One crystal form (P), refined to 1.85 A resolution, contains a dimer in the asymmetric unit, while the other (I) contains ...

    The X-ray crystal structure of recombinant human monocyte chemoattractant protein (MCP-1) has been solved in two crystal forms. One crystal form (P), refined to 1.85 A resolution, contains a dimer in the asymmetric unit, while the other (I) contains a monomer and was refined at 2.4 A. Although both crystal forms grow together in the same droplet, the respective quaternary structures of the protein differ dramatically. In addition, both X-ray structures differ to a similar extent from the solution structure of MCP-1. Such extent of variability of quaternary structures is unprecedented. In the crystal structures, the well-ordered N termini of MCP-1 form 3(10)-helices. Comparison of the three MCP-1 structures revealed a direct correlation between the main-chain conformation of the first two cysteine residues and the quaternary arrangements. These data can be used to explain the structural basis for the assignment of residues responsible for biological activity.


    Related Citations: 
    • Heteronuclear (1H, 13C, 15N) NMR Assignments and Solution Structure of the Monocyte Chemoattractant Protein-1 (Mcp-1) Dimer
      Handel, T.M.,Domaille, P.J.
      (1996) Biochemistry 35: 6569


    Organizational Affiliation

    Macromolecular Structure Laboratory, NCI-Frederick Cancer Research and Development Center, ABL-Basic Research Program, Maryland 21702, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
MONOCYTE CHEMOATTRACTANT PROTEIN 1
A
77Homo sapiensMutation(s): 0 
Gene Names: CCL2 (MCP1, SCYA2)
Find proteins for P13500 (Homo sapiens)
Go to Gene View: CCL2
Go to UniProtKB:  P13500
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.275 
  • R-Value Work: 0.200 
  • Space Group: I 41 2 2
Unit Cell:
Length (Å)Angle (°)
a = 84.860α = 90.00
b = 84.860β = 90.00
c = 52.760γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
DENZOdata reduction
AMoREphasing
X-PLORrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1997-03-12
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Version format compliance