5D65

X-RAY STRUCTURE OF MACROPHAGE INFLAMMATORY PROTEIN-1 ALPHA (CCL3) WITH HEPARIN COMPLEX


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.1 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.214 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural basis for oligomerization and glycosaminoglycan binding of CCL5 and CCL3.

Liang, W.G.Triandafillou, C.G.Huang, T.Y.Zulueta, M.M.Banerjee, S.Dinner, A.R.Hung, S.C.Tang, W.J.

(2016) Proc.Natl.Acad.Sci.USA 113: 5000-5005

  • DOI: 10.1073/pnas.1523981113
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • CC chemokine ligand 5 (CCL5) and CCL3 are critical for immune surveillance and inflammation. Consequently, they are linked to the pathogenesis of many inflammatory conditions and are therapeutic targets. Oligomerization and glycosaminoglycan (GAG) bi ...

    CC chemokine ligand 5 (CCL5) and CCL3 are critical for immune surveillance and inflammation. Consequently, they are linked to the pathogenesis of many inflammatory conditions and are therapeutic targets. Oligomerization and glycosaminoglycan (GAG) binding of CCL5 and CCL3 are vital for the functions of these chemokines. Our structural and biophysical analyses of human CCL5 reveal that CCL5 oligomerization is a polymerization process in which CCL5 forms rod-shaped, double-helical oligomers. This CCL5 structure explains mutational data and offers a unified mechanism for CCL3, CCL4, and CCL5 assembly into high-molecular-weight, polydisperse oligomers. A conserved, positively charged BBXB motif is key for the binding of CC chemokines to GAG. However, this motif is partially buried when CCL3, CCL4, and CCL5 are oligomerized; thus, the mechanism by which GAG binds these chemokine oligomers has been elusive. Our structures of GAG-bound CCL5 and CCL3 oligomers reveal that these chemokine oligomers have distinct GAG-binding mechanisms. The CCL5 oligomer uses another positively charged and fully exposed motif, KKWVR, in GAG binding. However, residues from two partially buried BBXB motifs along with other residues combine to form a GAG-binding groove in the CCL3 oligomer. The N termini of CC chemokines are shown to be involved in receptor binding and oligomerization. We also report an alternative CCL3 oligomer structure that reveals how conformational changes in CCL3 N termini profoundly alter its surface properties and dimer-dimer interactions to affect GAG binding and oligomerization. Such complexity in oligomerization and GAG binding enables intricate, physiologically relevant regulation of CC chemokine functions.


    Organizational Affiliation

    Ben May Department for Cancer Research, The University of Chicago, Chicago, IL 60637;




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
C-C motif chemokine 3
A, B, C, D, E
70Homo sapiensMutation(s): 0 
Gene Names: CCL3 (G0S19-1, MIP1A, SCYA3)
Find proteins for P10147 (Homo sapiens)
Go to Gene View: CCL3
Go to UniProtKB:  P10147
Small Molecules
Ligands 5 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CL
Query on CL

Download SDF File 
Download CCD File 
B, E
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
BGC
Query on BGC

Download SDF File 
Download CCD File 
A, B, C, D, E
BETA-D-GLUCOSE
C6 H12 O6
WQZGKKKJIJFFOK-VFUOTHLCSA-N
 Ligand Interaction
SGN
Query on SGN

Download SDF File 
Download CCD File 
B
N,O6-DISULFO-GLUCOSAMINE
C6 H13 N O11 S2
DQTRACMFIGDHSN-UKFBFLRUSA-N
 Ligand Interaction
GLC
Query on GLC

Download SDF File 
Download CCD File 
E
ALPHA-D-GLUCOSE
C6 H12 O6
WQZGKKKJIJFFOK-DVKNGEFBSA-N
 Ligand Interaction
IDS
Query on IDS

Download SDF File 
Download CCD File 
B
2-O-sulfo-alpha-L-idopyranuronic acid
O2-SULFO-GLUCURONIC ACID
C6 H10 O10 S
COJBCAMFZDFGFK-VCSGLWQLSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.1 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.214 
  • Space Group: P 62 2 2
Unit Cell:
Length (Å)Angle (°)
a = 181.061α = 90.00
b = 181.061β = 90.00
c = 77.378γ = 120.00
Software Package:
Software NamePurpose
HKL-3000data scaling
PHENIXrefinement
PHENIXphasing
HKL-3000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of HealthUnited States--

Revision History 

  • Version 1.0: 2016-04-20
    Type: Initial release
  • Version 1.1: 2016-05-04
    Type: Database references
  • Version 1.2: 2016-05-18
    Type: Database references