PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 2567085-6 1989 Since one would anticipate that the valine/cysteine substitution at position 12 of the ras p21 would occur at only low frequencies in human tumors, our results with DWP are consistent with this hypothesis. Cysteine 43-51 H3 histone pseudogene 16 Homo sapiens 91-94