PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 17384901-11 2007 This means that human UPRTase may have enzymatic activity with another, unknown, factor or have other activity in pyrimidine metabolism. pyrimidine 114-124 uracil phosphoribosyltransferase homolog Homo sapiens 22-29