Structural highlights
Function
C163A_PIG Involved in clearance and endocytosis of hemoglobin/haptoglobin complexes by macrophages and may thereby protect tissues from free hemoglobin-mediated oxidative damage. May play a role in the uptake and recycling of iron, via endocytosis of hemoglobin/haptoglobin and subsequent breakdown of heme. Binds hemoglobin/haptoglobin complexes in a calcium-dependent and pH-dependent manner. Induces a cascade of intracellular signals that involves tyrosine kinase-dependent calcium mobilization, inositol triphosphate production and secretion of IL6 and CSF1 (By similarity). May play a role in the process of infection of porcine monocytes/macrophages by African swine fever virus (ASFV). In case of porcine reproductive and respiratory syndrome virus (PRRSV), serves mediates virion attachment and plays a role in viral entry.[1] After shedding, the soluble form (sCD163) may play an anti-inflammatory role.
References
- ↑ Sanchez-Torres C, Gomez-Puertas P, Gomez-del-Moral M, Alonso F, Escribano JM, Ezquerra A, Dominguez J. Expression of porcine CD163 on monocytes/macrophages correlates with permissiveness to African swine fever infection. Arch Virol. 2003 Dec;148(12):2307-23. Epub 2003 Sep 16. PMID:14648288 doi:http://dx.doi.org/10.1007/s00705-003-0188-4