PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 27428516-5 2017 The N-cap cisPro(alphaR ) is associated with a six-residue sequence motif - X(-2) -X(-1) -cisPro-X(1) -X(2) -X(3) - with preference for Glu/Gln at X(-1) , Phe/Tyr/Trp at X(1) and Ser/Thr at X(3) . Tyrosine 159-162 xenotropic and polytropic retrovirus receptor 1 Homo sapiens 109-113