PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 12696864-4 2003 Regardless of the stereochemistry, these C-glycosides served as acceptor for a subsequent glycosylation step to yield the novel urdamycins R and S with di-rhodinosyl side chains at C-9 of the polyketide moiety. C-glycoside 41-53 complement C9 Homo sapiens 181-184