ID   NADE_BUCAP              Reviewed;         268 AA.
AC   Q8K9W7;
DT   15-NOV-2002, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2002, sequence version 1.
DT   03-AUG-2022, entry version 108.
DE   RecName: Full=NH(3)-dependent NAD(+) synthetase {ECO:0000255|HAMAP-Rule:MF_00193};
DE            EC=6.3.1.5 {ECO:0000255|HAMAP-Rule:MF_00193};
GN   Name=nadE {ECO:0000255|HAMAP-Rule:MF_00193}; OrderedLocusNames=BUsg_168;
OS   Buchnera aphidicola subsp. Schizaphis graminum (strain Sg).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Erwiniaceae; Buchnera.
OX   NCBI_TaxID=198804;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Sg;
RX   PubMed=12089438; DOI=10.1126/science.1071278;
RA   Tamas I., Klasson L., Canbaeck B., Naeslund A.K., Eriksson A.-S.,
RA   Wernegreen J.J., Sandstroem J.P., Moran N.A., Andersson S.G.E.;
RT   "50 million years of genomic stasis in endosymbiotic bacteria.";
RL   Science 296:2376-2379(2002).
CC   -!- FUNCTION: Catalyzes the ATP-dependent amidation of deamido-NAD to form
CC       NAD. Uses ammonia as a nitrogen source. {ECO:0000255|HAMAP-
CC       Rule:MF_00193}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + deamido-NAD(+) + NH4(+) = AMP + diphosphate + H(+) +
CC         NAD(+); Xref=Rhea:RHEA:21188, ChEBI:CHEBI:15378, ChEBI:CHEBI:28938,
CC         ChEBI:CHEBI:30616, ChEBI:CHEBI:33019, ChEBI:CHEBI:57540,
CC         ChEBI:CHEBI:58437, ChEBI:CHEBI:456215; EC=6.3.1.5;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00193};
CC   -!- PATHWAY: Cofactor biosynthesis; NAD(+) biosynthesis; NAD(+) from
CC       deamido-NAD(+) (ammonia route): step 1/1. {ECO:0000255|HAMAP-
CC       Rule:MF_00193}.
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_00193}.
CC   -!- SIMILARITY: Belongs to the NAD synthetase family. {ECO:0000255|HAMAP-
CC       Rule:MF_00193, ECO:0000305}.
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DR   EMBL; AE013218; AAM67735.1; -; Genomic_DNA.
DR   RefSeq; WP_011053702.1; NC_004061.1.
DR   AlphaFoldDB; Q8K9W7; -.
DR   SMR; Q8K9W7; -.
DR   STRING; 198804.BUsg_168; -.
DR   EnsemblBacteria; AAM67735; AAM67735; BUsg_168.
DR   KEGG; bas:BUsg_168; -.
DR   eggNOG; COG0171; Bacteria.
DR   HOGENOM; CLU_059327_3_0_6; -.
DR   OMA; MAFLYDY; -.
DR   OrthoDB; 1152435at2; -.
DR   UniPathway; UPA00253; UER00333.
DR   Proteomes; UP000000416; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:InterPro.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0004359; F:glutaminase activity; IEA:InterPro.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0003952; F:NAD+ synthase (glutamine-hydrolyzing) activity; IEA:InterPro.
DR   GO; GO:0008795; F:NAD+ synthase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0009435; P:NAD biosynthetic process; IEA:UniProtKB-UniRule.
DR   CDD; cd00553; NAD_synthase; 1.
DR   Gene3D; 3.40.50.620; -; 1.
DR   HAMAP; MF_00193; NadE_ammonia_dep; 1.
DR   InterPro; IPR022310; NAD/GMP_synthase.
DR   InterPro; IPR003694; NAD_synthase.
DR   InterPro; IPR022926; NH(3)-dep_NAD(+)_synth.
DR   InterPro; IPR014729; Rossmann-like_a/b/a_fold.
DR   PANTHER; PTHR23090; PTHR23090; 1.
DR   Pfam; PF02540; NAD_synthase; 1.
DR   TIGRFAMs; TIGR00552; nadE; 1.
PE   3: Inferred from homology;
KW   ATP-binding; Ligase; Magnesium; Metal-binding; NAD; Nucleotide-binding.
FT   CHAIN           1..268
FT                   /note="NH(3)-dependent NAD(+) synthetase"
FT                   /id="PRO_0000152161"
FT   BINDING         46..53
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00193"
FT   BINDING         52
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00193"
FT   BINDING         140
FT                   /ligand="deamido-NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:58437"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00193"
FT   BINDING         160
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00193"
FT   BINDING         165
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00193"
FT   BINDING         173
FT                   /ligand="deamido-NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:58437"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00193"
FT   BINDING         180
FT                   /ligand="deamido-NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:58437"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00193"
FT   BINDING         189
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00193"
FT   BINDING         211
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00193"
FT   BINDING         260..261
FT                   /ligand="deamido-NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:58437"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00193"
SQ   SEQUENCE   268 AA;  30605 MW;  0C81021081F88846 CRC64;
     MTLQKKIIEL LGVKPLIIPK KEIENRIQIL KRYLIENTHL KTLIVGISGG QDSTLTGKLC
     QLSIQELRKE KKEKSYQFIA LRLPYGVQID EKDCRDAINF INPDQIFTIN IKNAVLNSER
     SLKKQGIQIS DYIKGNEKAR ERMKVQYSFA AITNGLVVGT GNAAENVTGF FTKYGDNGTD
     VNLISKLNKR QGKFLLKELN CPKHLYLKKP TADLEDEKPQ KEDEVALGIK YNIIDDYLEG
     KKVNSLNKQI IERLYLTTEH KRKIINLG