Phospholipase A2 Receptor 1 (PLA2R1)

Sequence analysis revealed that the deduced 1,465-amino acid PLA2R1 transmembrane protein contains a 25-amino acid signal sequence, 15 potential N-glycosylation sites, an N-terminal cysteine-rich domain, a fibronectin-like type II domain, 8 carbohydrate recognition domains, and a short C-terminal cytoplasmic tail containing a consensus sequence (asn-pro-X-tyr) also found in bovine Pla2r1. A casein-kinase II phosphorylation site is also located in this C-terminal region. Ancian et al. (1995) identified a splice variant encoding a soluble form of PLA2R1. Quantitative PCR analysis suggested that the ratio for the transcription of membrane to soluble PLA2R1 is 1.6. Northern blot analysis detected strong expression of 6.5- and 5.4-kb PLA2R1 transcripts in kidney, with moderate expression in placenta, lung, and skeletal muscle.