The sequences featured in this family are similar to a region of the human renin receptor (Swiss:Q8NG15) that bears a putative transmembrane spanning segment [1]. The renin receptor is involved in intracellular signal transduction by the activation of the ERK1/ERK2 pathway, and it also serves to increase the efficiency of angiotensinogen cleavage by receptor-bound renin, therefore facilitating angiotensin II generation and action on a cell surface [1].

1: Pivotal role of the renin/prorenin receptor in angiotensin II production and cellular responses to renin. Nguyen G, Delarue F, Burckle C, Bouzhir L, Giller T, Sraer JD; J Clin Invest 2002;109:1417-1427. PMID:12045255