PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 16873405-6 2006 Mutational studies showed that absence of the pH-independent current in Na(V)1.5 could be ascribed to the cysteine in domain I, just above the selectivity filter aspartate (Cys373). Cysteine 106-114 immunoglobulin lambda variable 2-18 Homo sapiens 72-80