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Macrophage inflammatory protein

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Title: Macrophage inflammatory protein  
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Macrophage inflammatory protein

chemokine (C-C motif) ligand 3
Human Mip-1α dimer D26A mutant. PDB . [1] Disulfide bonds highlighted.
Identifiers
Symbol CCL3
Alt. symbols SCYA3, MIP-1α
Entrez 6348
HUGO 10627
OMIM 182283
PDB 1B50 More structures
RefSeq NM_002983
UniProt P10147
Other data
Locus Chr. 17 q12
chemokine (C-C motif) ligand 4
Human Mip-1β dimer. PDB .[2] Disulfide bonds highlighted.
Identifiers
Symbol CCL4
Alt. symbols SCYA4, MIP-1β, LAG1
Entrez 6351
HUGO 10630
OMIM 182284
PDB 1HUM More structures
RefSeq NM_002984
UniProt P13236
Other data
Locus Chr. 17 q21-q23

Macrophage Inflammatory Proteins (MIP) belong to the family of chemotactic cytokines known as chemokines. In humans, there are two major forms, MIP-1α and MIP-1β that are now officially named CCL3 and CCL4, respectively. Both are major factors produced by macrophages after they are stimulated with bacterial endotoxins.[3] They are crucial for immune responses towards infection and inflammation.[4] They activate human granulocytes (neutrophils, eosinophils and basophils) which can lead to acute neutrophilic inflammation. They also induce the synthesis and release of other pro-inflammatory cytokines such as interleukin 1 (IL-1), IL-6 and TNF-α from fibroblasts and macrophages. The genes for CCL3 and CCL4 are both located on human chromosome 17.[5]

They are produced by many cells, particularly macrophages, dendritic cells, and lymphocytes.[6] MIP-1 are best known for their chemotactic and proinflammatory effects but can also promote homoeostasis.[6] Biophysical analyses and mathematical modelling has shown that MIP-1 reversibly forms a polydisperse distribution of rod-shaped polymers in solution. Polymerization buries receptor-binding sites of MIP-1, thus depolymerization mutations enhance MIP-1 to arrest monocytes onto activated human endothelium.[4]

See also


References

  1. ^ Czaplewski, L. G.; McKeating, J.; Craven, C. J.; Higgins, L. D.; Appay, V.; Brown, A.; Dudgeon, T.; Howard, L. A.; Meyers, T.; Owen, J.; Palan, S. R.; Tan, P.; Wilson, G.; Woods, N. R.; Heyworth, C. M.; Lord, B. I.; Brotherton, D.; Christison, R.; Craig, S.; Cribbes, S.; Edwards, R. M.; Evans, S. J.; Gilbert, R.; Morgan, P.; Randle, E.; Schofield, N.; Varley, P. G.; Fisher, J.; Waltho, J. P.; Hunter, M. G. (1999). "Identification of amino acid residues critical for aggregation of human CC chemokines macrophage inflammatory protein (MIP)-1alpha, MIP-1beta, and RANTES. Characterization of active disaggregated chemokine variants". The Journal of Biological Chemistry 274 (23): 16077–16084.  
  2. ^ Lodi, P. J.; Garrett, D. S.; Kuszewski, J.; Tsang, M. L.; Weatherbee, J. A.; Leonard, W. J.; Gronenborn, A. M.; Clore, G. M. (1994). "High-resolution solution structure of the beta chemokine hMIP-1 beta by multidimensional NMR". Science 263 (5154): 1762–1767.  
  3. ^ Sherry B, Tekamp-Olson P, Gallegos C, Bauer D, Davatelis G, Wolpe SD, Masiarz F, Coit D, Cerami A (December 1988). "Resolution of the two components of macrophage inflammatory protein 1, and cloning and characterization of one of those components, macrophage inflammatory protein 1 beta". J. Exp. Med. 168 (6): 2251–9.  
  4. ^ a b Ren M, Guo Q, Guo L, et al. (December 2010). "Polymerization of MIP-1 chemokine (CCL3 and CCL4) and clearance of MIP-1 by insulin-degrading enzyme". EMBO J. 29 (23): 3952–66.  
  5. ^ Irving SG, Zipfel PF, Balke J, McBride OW, Morton CC, Burd PR, Siebenlist U, Kelly K (June 1990). "Two inflammatory mediator cytokine genes are closely linked and variably amplified on chromosome 17q". Nucleic Acids Res. 18 (11): 3261–70.  
  6. ^ a b Maurer M, von Stebut E (October 2004). "Macrophage inflammatory protein-1". Int. J. Biochem. Cell Biol. 36 (10): 1882–6.  

External links


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