>tr|D6ZT54|D6ZT54_BIFLJ Phosphoribosylaminoimidazole-succinocarboxamide synthase OS=Bifidobacterium longum subsp. longum GN=purC MEKLEKLYEGKAKQLYATDDPEVLWVEYKNTATAGDGEKKEDFTGKGRLNNLITTIIFDL LKKRGIDSHLIKRVDDTGQLVRKVNMFPLEIVLRNVAAGHFCSRLGVEEGLPLKEPVLEY FLKNDDLHDPFVNDDDLVALGVCTREDLAEIAPLARKINEALIEIFAKIDVKLVDFKIEM GRATDGTLLLADEITPDSCRLWDQKDHSGKVEHLDKDLFRRGLGSIIPAYEEIEERLAEL AKSEGIEVAE