[Term] id: PR:000027717 name: ribonucleoside-diphosphate reductase class I, small subunit def: "A protein that is a stand-alone version of the Ribonucleotide reductase, small chain (Pfam:PF00268) domain. This protein is the small subunit of the ribonucleotide reductase complex. The active subunit binds iron and contains an active site tyrosine radical." [PMID:15158709] comment: Category=family. Requested by=PomBase. synonym: "fam:RNR_classI_sm" EXACT PRO-short-label [PRO:DAN] synonym: "Ribonucleotide reductase small subunit" BROAD [PRO:DNx] xref: PIRSF:PIRSF000355 is_a: PR:000000001 ! protein