>sp|B9ML31|APT_CALBD Adenine phosphoribosyltransferase OS=Caldicellulosiruptor bescii GN=apt MNLKEKFRHVLNFPKEGIDFIDITTVLQDKDAFKYAIDSLVNLVKDLDFELIVGPESRGF IFGAPVAYVLNKGLVLVRKKGKLPYKTVSVEYELEYGKDVLEMHIDAIKPGQKVVIIDDL LATGGTTLSNIKLVEKLGGEVVGIAYLVELTYLGGRENLKGYDVRSVVQFESSLI