{"metadata":{"accession":"O42043","id":"ENK18_HUMAN","source_organism":{"taxId":"9606","scientificName":"Homo sapiens","fullName":"Homo sapiens (Human)"},"name":"Endogenous retrovirus group K member 18 Env polyprotein","description":["Retroviral envelope proteins mediate receptor recognition and membrane fusion during early infection. Endogenous envelope proteins may have kept, lost or modified their original function during evolution. This envelope protein has superantigenic properties","SU mediates receptor recognition","TM anchors the envelope heterodimer to the viral membrane through one transmembrane domain. The other hydrophobic domain, called fusion peptide, mediates fusion of the viral membrane with the target cell membrane (By similarity)"],"length":560,"sequence":"MVTPVTWMDNPIEVYVNDSVWVPGPTDDRCPAKPEEEGMMINISIGYHYPPICLGRAPGCLMPAVQNWLVEVPTVSPNSRFTYHMVSGMSLRPRVNCLQDFSYQRSLKFRPKGKTCPKEIPKGSKNTEVLVWEECVANSVVILQNNEFGTIIDWAPRGQFYHNCSGQTQSCPSAQVSPAVDSDLTESLDKHKHKKLQSFYLWEWEEKGISTPRPKIISPVSGPEHPELWRLTVASHHIRIWSGNQTLETRYRKPFYTIDLNSILTVPLQSCVKPPYMLVVGNIVIKPASQTITCENCRLFTCIDSTFNWQHRILLVRAREGMWIPVSTDRPWEASPSIHILTEILKGVLNRSKRFIFTLIAVIMGLIAVTATAAVAGVALHSSVQSVNFVNYWQKNSTRLWNSQSSIDQKLASQINDLRQTVIWMGDRLMTLEHHFQLQCDWNTSDFCITPQIYNESEHHWDMVRRHLQGREDNLTLDISKLKEQIFEASKAHLNLVPGTEAIAGVADGLANLNPVTWIKTIRSTMIINLILIVVCLFCLLLVCRCTQQLRRDSDIENGP","proteome":"UP000005640","gene":"ERVK-18","go_terms":[{"identifier":"GO:0005198","name":"structural molecule activity","category":{"code":"F","name":"molecular_function"}}],"protein_evidence":1,"source_database":"reviewed","is_fragment":false,"in_alphafold":true,"in_bfvd":false,"ida_accession":"a0a2c942b0147183d333345a13f9037b96625db5","counters":{"domain_architectures":26,"entries":7,"isoforms":0,"proteomes":1,"sets":1,"structures":0,"taxa":1,"dbEntries":{"pfam":2,"cdd":1,"panther":1,"interpro":3},"proteome":1,"taxonomy":1,"similar_proteins":26}}}