>sp|Q9KDJ3|NADA_HALH5 Quinolinate synthase OS=Halalkalibacterium halodurans GN=nadA MNVFDTLQQSKKLPDVYRQMTRVELEERIRQHKERLGKKLLMLGHHYQRDEVFQFADQTG DSLQLAQIAAKEKEAQFIVFCGVHFMAETADLLTSEEQTVLLPDLRAGCSMADMADIHQT ERAWERLQLMFGDTILPLTYVNSTAAIKAFCGRNGGATVTSSNAKKMLEWAFTQKERLLF LPDQHLGRNTAYELGIPLEAMAVWNPETERLETDQPLENIRVILWKGHCSVHEKFTVKHI EHLRKNEPDMSIIVHPECTHDVVIHADDAGSTHYIIKTIESADSGTKWAVGTEMNLVNRL ANEHPDKEIVSLNPTMCPCLTMNRIDIEHLCWSLDQLAEGVFQHPIKVEDKDRGPALLAL QRMLDRA