C5a anaphylatoxin chemotactic receptor 1

Definition:

Receptor for the chemotactic and inflammatory peptide anaphylatoxin C5a. The ligand interacts with at least two sites on the receptor: a high-affinity site on the extracellular N-terminus, and a second site in the transmembrane region which activates downstream signaling events. Receptor activation stimulates chemotaxis, granule enzyme release, intracellular calcium release and superoxide anion production.

References:

[1]. T Christophe, et al. Human complement 5a (C5a) anaphylatoxin receptor (CD88) phosphorylation sites and their specific role in receptor phosphorylation and attenuation of G protein-mediated responses. Desensitization of C5a receptor controls superoxide production but not receptor sequestration in HL-60 cells. J Biol Chem. 2000 Jan 21;275(3):1656-64. [Content Brief]

[2]. N P Gerard, et al. The chemotactic receptor for human C5a anaphylatoxin. Nature. 1991 Feb 14;349(6310):614-7. [Content Brief]

[3]. Nathan Robertson, et al. Structure of the complement C5a receptor bound to the extra-helical antagonist NDT9513727. Nature. 2018 Jan 3;553(7686):111-114. [Content Brief]

[4]. Bent Postma, et al. Chemotaxis inhibitory protein of Staphylococcus aureus binds specifically to the C5a and formylated peptide receptor. J Immunol. 2004 Jun 1;172(11):6994-7001. [Content Brief]

[5]. P N Monk, et al. Mutation of glutamate 199 of the human C5a receptor defines a binding site for ligand distinct from the receptor N terminus. J Biol Chem. 1995 Jul 14;270(28):16625-9. [Content Brief]

[6]. Z Chen, et al. Residues 21-30 within the extracellular N-terminal region of the C5a receptor represent a binding domain for the C5a anaphylatoxin. J Biol Chem. 1998 Apr 24;273(17):10411-9. [Content Brief]

[7]. J A DeMartino, et al. The amino terminus of the human C5a receptor is required for high affinity C5a binding and for receptor activation by C5a but not C5a analogs. J Biol Chem. 1994 May 20;269(20):14446-50. [Content Brief]

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