RPSBLAST alignment for GI: 254780999 and conserved domain: cd00553
>gnl|CDD|30166 cd00553, NAD_synthase, NAD+ synthase is a homodimer, which catalyzes the final step in de novo nicotinamide adenine dinucleotide (NAD+) biosynthesis, an amide transfer from either ammonia or glutamine to nicotinic acid adenine dinucleotide (NaAD). The conversion of NaAD to NAD+ occurs via an NAD-adenylate intermediate and requires ATP and Mg2+. The intemediate is subsequently cleaved into NAD+ and AMP. In many prokaryotes, such as E. coli , NAD synthetase consists of a single domain and is strictly ammonia dependent. In contrast, eukaryotes and other prokaryotes have an additional N-terminal amidohydrolase domain that prefer glutamine, Interestingly, NAD+ synthases in these prokaryotes, can also utilize ammonia as an amide source .. Length = 248
Score = 270 bits (692), Expect = 8e-73
Identities = 106/262 (40%), Positives = 151/262 (57%), Gaps = 16/262 (6%)
Query: 270 QEEEADYNACVLSLRDYVQKNNFHKVIIGLSGGIDSALCAAIAVDALGKENVQTIMLPYK 329
++ E NA VL LRDY++K+ F V++GLSGGIDSAL AA+AV ALG+ENV + +P +
Sbjct: 1 EDLEEIINALVLFLRDYLRKSGFKGVVLGLSGGIDSALVAALAVRALGRENVLALFMPSR 60
Query: 330 YTSPQSLEDAAACAKALGCKYDVLPIHDLVNHFFSLMSQFLQEEPSGIVAENIQSRIRGN 389
Y+S ++ EDA A+ALG ++ + I V F +L+ + E + NIQ+R+R
Sbjct: 61 YSSEETREDAKELAEALGIEHVNIDIDPAVEAFLALLGESGGSELEDLALGNIQARLRMV 120
Query: 390 ILMALSNHSKAMLLTTSNKSEISVGYGTLYGDMSGGFNPLKDLYKTQVFQLASWRNSHGI 449
IL AL+N ++L T NKSE+ +GY T YGD + NP+ DLYKTQV +LA +
Sbjct: 121 ILYALANKLGGLVLGTGNKSELLLGYFTKYGDGAADINPIGDLYKTQVRELARYLG---- 176
Query: 450 TSGLGPLTEVIPPSILEKSPSAELRPHQTDQESLP-PYPILDDIIKRIVENEES-FINND 507
+P SI++K PSAEL P QTD++ L PY LD + +E
Sbjct: 177 ----------VPESIIDKPPSAELWPGQTDEDELGMPYEELDQFLYLRLEGGLGPEEILA 226
Query: 508 QEYNDETVRYVEHLLYGSEYKR 529
+E V+ V L +E+KR
Sbjct: 227 PGIIEEVVKRVFRLYKKNEHKR 248