250 Regulatory protein SIR2 homolog PF1154 NAD-dependent deacetylase MLGEVSKILAKSSMAIAFTGAGISAESGIPTFRGKDGLWRKYRAEELATPEAFKRDPKLVWEFYKWRIKKILEAKPNPAHIALAELEKMGIIKAVITQNVDDLHREAGSKNVIELHGNIFRVKCTSCSYREYLKESDRIGWLLSQELPRCPKCGSLLRPDVVWFGEALPEKELTTAFSLAKKADVVLVVGTSGVVYPAAYIPYIVKESGGIVVEINIEPSAITPIADFFLRGKAGEVLPKLVEEIRRISK NPD_PYRFU cobB Modulates the activity of chromatin proteins, thereby having an effect on transcription per subunit (By similarity).