PMID- 8639605
OWN - NLM
STAT- MEDLINE
DCOM- 19960717
LR  - 20161019
IS  - 0006-2960 (Print)
IS  - 0006-2960 (Linking)
VI  - 35
IP  - 21
DP  - 1996 May 28
TI  - Heteronuclear (1H, 13C, 15N) NMR assignments and solution structure of the 
      monocyte chemoattractant protein-1 (MCP-1) dimer.
PG  - 6569-84
AB  - A full high-resolution three-dimensional solution structure of the monocyte 
      chemoattractant protein-1 (MCP-1 or MCAF) homodimer has been determined by 
      heteronuclear multidimensional NMR. MCP-1 is a member of a family of small 
      proteins which play a crucial role in immune surveillance by orchestrating the 
      recruitment of specific leukocytes to areas of immune challenge. The protein was 
      uniformly isotopically enriched with 13C and 15N by expression in Escherichia 
      coli, and complete sequence-specific resonance assignments were obtained by a 
      combination of heteronuclear double- and triple-resonance experiments. The 
      secondary structure was deduced from characteristic patterns of NOEs, 13 C 
      alpha/beta chemical shifts, measurements of 3JHNH alpha scalar couplings, and 
      patterns of slowly exchanging amide protons. Because MCP-1 forms symmetrical 
      homodimers, additional experiments were carried out to unambiguously establish 
      the quaternary contacts. NOEs from these novel experiments were merged with more 
      traditional heteronuclear separated NOE measurements in an iterative strategy to 
      partition the restraints between explicit inter/intrasubunit contacts and a class 
      wherein both were retained as ambiguous. With more than 30 restraints per 
      residue, the three-dimensional structure is well-defined with a backbone rmsd of 
      0.37 A to the mean over residues 5-69 of the dimer. We compare the structure with 
      those recently reported for the related chemokines MIP-1 beta and RANTES and 
      highlight the differences in terms of receptor specificity and function as well 
      as interpret the known biological activity data of MCP-1 mutants.
FAU - Handel, T M
AU  - Handel TM
AD  - Department of Molecular and Cell Biology, University of California at Berkeley 
      94720, USA.
FAU - Domaille, P J
AU  - Domaille PJ
LA  - eng
GR  - R01 AI037113/AI/NIAID NIH HHS/United States
GR  - AI 37113/AI/NIAID NIH HHS/United States
PT  - Comparative Study
PT  - Journal Article
PT  - Research Support, U.S. Gov't, P.H.S.
PL  - United States
TA  - Biochemistry
JT  - Biochemistry
JID - 0370623
RN  - 0 (Carbon Isotopes)
RN  - 0 (Chemokine CCL2)
RN  - 0 (Chemokine CCL4)
RN  - 0 (Chemokine CCL5)
RN  - 0 (Macromolecular Substances)
RN  - 0 (Macrophage Inflammatory Proteins)
RN  - 0 (Monokines)
RN  - 0 (Nitrogen Isotopes)
RN  - 0 (Recombinant Proteins)
RN  - 0 (Solutions)
RN  - 7YNJ3PO35Z (Hydrogen)
SB  - IM
MH  - Amino Acid Sequence
MH  - Carbon Isotopes
MH  - Chemokine CCL2/*chemistry
MH  - Chemokine CCL4
MH  - Chemokine CCL5/chemistry
MH  - Computer Graphics
MH  - Escherichia coli
MH  - Hydrogen
MH  - Macromolecular Substances
MH  - Macrophage Inflammatory Proteins
MH  - Magnetic Resonance Spectroscopy/methods
MH  - Models, Molecular
MH  - Molecular Sequence Data
MH  - Monokines/chemistry
MH  - Nitrogen Isotopes
MH  - *Protein Structure, Secondary
MH  - Recombinant Proteins/chemistry
MH  - Software
MH  - Solutions
EDAT- 1996/05/28 00:00
MHDA- 1996/05/28 00:01
CRDT- 1996/05/28 00:00
PHST- 1996/05/28 00:00 [pubmed]
PHST- 1996/05/28 00:01 [medline]
PHST- 1996/05/28 00:00 [entrez]
AID - bi9602270 [pii]
AID - 10.1021/bi9602270 [doi]
PST - ppublish
SO  - Biochemistry. 1996 May 28;35(21):6569-84. doi: 10.1021/bi9602270.