>cd02168 NMNAT_Nudix This domain represents the N-terminal NMNAT (Nicotinamide/nicotinate mononucleotide adenylyltransferase) domain of a novel bifunctional enzyme endowed with NMN adenylyltransferase and #Nudix' hydrolase activities. This domain is highly homologous to the archeal NMN adenyltransferase that catalyzes NAD synthesis from NMN and ATP. NMNAT is an indispensable enzyme in the biosynthesis of NAD(+) and NADP(+). Nicotinamide-nucleotide adenylyltransferase synthesizes NAD via the salvage pathway, while nicotinate-nucleotide adenylyltransferase synthesizes the immediate precursor of NAD via the de novo pathway. The C-terminal domain of this enzyme shares homology with the archaeal ADP-ribose pyrophosphatase, a member of the 'Nudix' hydrolase family.

Probab=96.93 E-value=0.0046 Score=40.75 Aligned_cols=133 Identities=18% Similarity=0.178 Sum_probs=68.6 Q ss_pred EEEECCCCCCHHHHHHHHHHHHHHCCCCEEEEEECCCHHHHHCCCCCCCCCCHHHHHHHHHHH----CCCCCCCCCCC-- Q ss_conf 999315650289999999999950279779998379868984788866200007899998851----13100022564-- Q gi|254780846|r 22 VAIGNFDGIHLGHHLILEQAIKIANNSPITVLSFNPHPRTIIQSSSPIFTLSPPSIQEKILEK----MGFSALIRYKF-- 95 (324) Q Consensus 22 vtiG~FDGvH~GHq~Li~~~~~~a~~~~~~viTF~p~P~~~~~~~~~~~~l~~~~~k~~~l~~----~Gid~vi~~~F-- 95 (324) T Consensus 2 v~iGRFqPfH~GHl~~i~~al~~~~~vii~-iGSa~~-----~~~--~~nPft~~ER~~Mi~~~l~~~d~~R~~~~pv~D 73 (179) T cd02168 2 VYIGRFQPFHLGHLQVIRIALEQAREVIIL-IGSART-----ARN--IKNPWTSEEREQMIRAALSDEDLARVHFRPLRD 73 (179) T ss_pred CEEECCCCCCHHHHHHHHHHHHHCCEEEEE-EECCCC-----CCC--CCCCCCHHHHHHHHHHHCCHHCCCEEEEEECCC T ss_conf 162468998578999999999638937999-968899-----998--899989999999999970564187599997888 Q ss_pred ---HHHHHHCCCHHHHHHHHCCCCCEEEEEECCCCCCCCCCCCCHHHHHHHHHCCCCEEEECCHHHCCCCCCCCHHHHHH Q ss_conf ---05775228302688862142780299983455303377556024677510126416761522302333023036899 Q gi|254780846|r 96 ---TLETANYSAEQFIQKVLVEWLEVKTVITGTKFRFGKDRAGDRGILQKRGEKYGFHTVFIDELRNNKSQIVSSSNIRT 172 (324) Q Consensus 96 ---~~~~a~ls~e~Fi~~iL~~~l~~k~ivVG~Df~FG~~r~Gd~~~L~~~~~~~g~~v~~i~~~~~~~~~~ISSt~IR~ 172 (324) T Consensus 74 ~~yn~~~Wv~~V~~~V~~~~--~~~~~v~lvg~~k----d~ss--yyl~~FP---~w~~v~~~~-----~~~~saT~IR~ 137 (179) T cd02168 74 HLYNDNLWVADVQQKVLAIA--GPEASIGLIGHRK----DESS--YYLRLFP---QWDYVEVPN-----YSDLSATDIRD 137 (179) T ss_pred CCCCHHHHHHHHHHHCCCCC--CCCCCCEEEEEEE----CCCC--EEEECCC---CCCEEECCC-----CCCCCCHHHHH T ss_conf 88887999999999576113--6898705888860----6753--2555067---863443676-----57667559999 Q ss_pred HHHHHH Q ss_conf 987258 Q gi|254780846|r 173 ALTKGH 178 (324) Q Consensus 173 ~l~~Gd 178 (324) T Consensus 138 ~~~~g~ 143 (179) T cd02168 138 AYFEGS 143 (179) T ss_pred HHHCCC T ss_conf 998688

HHsearch alignment for GI: 254780846 and conserved domain: cd02168