Protein
Phosphoribosylformylglycinamidine synthase subunit PurL
Organism
Deinococcus radiodurans (strain ATCC 13939 / DSM 20539 / JCM 16871 / LMG 4051 / NBRC 15346 / NCIMB 9279 / R1 / VKM B-1422)
Function
Part of the phosphoribosylformylglycinamidine synthase complex involved in the purines biosynthetic pathway. Catalyzes the ATP-dependent conversion of formylglycinamide ribonucleotide (FGAR) and glutamine to yield formylglycinamidine ribonucleotide (FGAM) and glutamate. The FGAM synthase complex is composed of three subunits. PurQ produces an ammonia molecule by converting glutamine to glutamate. PurL transfers the ammonia molecule to FGAR to form FGAM in an ATP-dependent manner. PurS interacts with PurQ and PurL and is thought to assist in the transfer of the ammonia molecule from PurQ to PurL.
Similarity
Belongs to the FGAMS family.
Sequence
MTSQSLRDQAATFGLTTEEYDLFVSQLGREPNALEAAIVGAMWSEHCGYKNSRPLFRAFPTTGPQVLQGPGENAGVVDIGDGWGVAFKMESHNHPSAVEPVQGAATGVGGILRDIFAMGARPFAVLDSLRFGNPDSPRTRFLVNGVVDGIAHYGNAIGVPTVGGEVTFHPSYQENPLVNVMALGLLRHEDLATGTMGEVGNQIVYVGSKTGRDGLGGAVFSSADLSAASQADRPAVQVGDPFMEKLLLEATLEAIQAGLVAGVQDMGAAGLVSSTCEMAYRASLGITMDLDKVPTREEGMVPMELCLSESQERMILVPVPGKEQALHDLLAKWELDVVTIGEVEAHDRYRLTWKGEVVCDLPVALLNEAPKYTREGVESADIRAARERDLSGVPLPGDLGAVLLELLSHPTIASKRPIFERYDHQVMTNTVVVPGAADAAVLRVKGSPMGVAATSDCNPRFVQLDPYAGAAAAVAEAARNLACVGATPLAITDNLNFGNPHRPEVYYQLQQAVQGIADACRALNTPVTGGNVSLYNQYTEGDHKVAIHPTPTIGMVGVLPDVTVRASLNLKAAGQTLLLLGHRAEKGWSDSIGASQYLETVHGLEAGQVPPVDLDLAQKVVDGTLALIRAGLTDTAHDCAEGGLAVALAEMAIAGGLGLNVSLDAPASVRADALLFGEAHSRVIVAVEDAAAAGAKLDELGLPYAVLGETVEAPKVTIAAPAQHVHLSVNLESLKTAWEEPLKGILG