ID   ASNS_MIMIV              Reviewed;         550 AA.
AC   Q5UQE1;
DT   13-SEP-2005, integrated into UniProtKB/Swiss-Prot.
DT   23-JAN-2007, sequence version 3.
DT   03-AUG-2022, entry version 73.
DE   RecName: Full=Probable asparagine synthetase [glutamine-hydrolyzing];
DE            EC=6.3.5.4;
DE   AltName: Full=Glutamine-dependent asparagine synthetase;
GN   OrderedLocusNames=MIMI_R475;
OS   Acanthamoeba polyphaga mimivirus (APMV).
OC   Viruses; Varidnaviria; Bamfordvirae; Nucleocytoviricota; Megaviricetes;
OC   Imitervirales; Mimiviridae; Mimivirus.
OX   NCBI_TaxID=212035;
OH   NCBI_TaxID=5757; Acanthamoeba polyphaga (Amoeba).
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Rowbotham-Bradford;
RX   PubMed=15486256; DOI=10.1126/science.1101485;
RA   Raoult D., Audic S., Robert C., Abergel C., Renesto P., Ogata H.,
RA   La Scola B., Susan M., Claverie J.-M.;
RT   "The 1.2-megabase genome sequence of Mimivirus.";
RL   Science 306:1344-1350(2004).
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + H2O + L-aspartate + L-glutamine = AMP + diphosphate +
CC         H(+) + L-asparagine + L-glutamate; Xref=Rhea:RHEA:12228,
CC         ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:29985,
CC         ChEBI:CHEBI:29991, ChEBI:CHEBI:30616, ChEBI:CHEBI:33019,
CC         ChEBI:CHEBI:58048, ChEBI:CHEBI:58359, ChEBI:CHEBI:456215; EC=6.3.5.4;
CC   -!- PATHWAY: Amino-acid biosynthesis; L-asparagine biosynthesis; L-
CC       asparagine from L-aspartate (L-Gln route): step 1/1.
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DR   EMBL; AY653733; AAV50741.1; -; Genomic_DNA.
DR   RefSeq; YP_003986982.1; NC_014649.1.
DR   SMR; Q5UQE1; -.
DR   GeneID; 9925100; -.
DR   KEGG; vg:9925100; -.
DR   UniPathway; UPA00134; UER00195.
DR   Proteomes; UP000001134; Genome.
DR   GO; GO:0004066; F:asparagine synthase (glutamine-hydrolyzing) activity; IEA:UniProtKB-EC.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR   GO; GO:0006541; P:glutamine metabolic process; IEA:UniProtKB-KW.
DR   GO; GO:0070981; P:L-asparagine biosynthetic process; IEA:UniProtKB-UniPathway.
DR   CDD; cd01991; Asn_Synthase_B_C; 1.
DR   CDD; cd00712; AsnB; 1.
DR   Gene3D; 3.40.50.620; -; 1.
DR   Gene3D; 3.60.20.10; -; 1.
DR   InterPro; IPR006426; Asn_synth_AEB.
DR   InterPro; IPR001962; Asn_synthase.
DR   InterPro; IPR033738; AsnB_N.
DR   InterPro; IPR017932; GATase_2_dom.
DR   InterPro; IPR029055; Ntn_hydrolases_N.
DR   InterPro; IPR014729; Rossmann-like_a/b/a_fold.
DR   Pfam; PF00733; Asn_synthase; 1.
DR   Pfam; PF13537; GATase_7; 1.
DR   PIRSF; PIRSF001589; Asn_synthetase_glu-h; 1.
DR   SUPFAM; SSF56235; SSF56235; 1.
DR   TIGRFAMs; TIGR01536; asn_synth_AEB; 1.
DR   PROSITE; PS51278; GATASE_TYPE_2; 1.
PE   3: Inferred from homology;
KW   Amino-acid biosynthesis; Asparagine biosynthesis; ATP-binding;
KW   Glutamine amidotransferase; Ligase; Nucleotide-binding; Reference proteome.
FT   INIT_MET        1
FT                   /note="Removed; by host"
FT                   /evidence="ECO:0000250"
FT   CHAIN           2..550
FT                   /note="Probable asparagine synthetase [glutamine-
FT                   hydrolyzing]"
FT                   /id="PRO_0000056930"
FT   DOMAIN          2..189
FT                   /note="Glutamine amidotransferase type-2"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00609"
FT   DOMAIN          213..530
FT                   /note="Asparagine synthetase"
FT   ACT_SITE        2
FT                   /note="For GATase activity"
FT                   /evidence="ECO:0000250"
FT   BINDING         53..57
FT                   /ligand="L-glutamine"
FT                   /ligand_id="ChEBI:CHEBI:58359"
FT                   /evidence="ECO:0000250"
FT   BINDING         78..80
FT                   /ligand="L-glutamine"
FT                   /ligand_id="ChEBI:CHEBI:58359"
FT                   /evidence="ECO:0000250"
FT   BINDING         100
FT                   /ligand="L-glutamine"
FT                   /ligand_id="ChEBI:CHEBI:58359"
FT                   /evidence="ECO:0000250"
FT   BINDING         256
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000250"
FT   BINDING         284
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000250"
FT   BINDING         360..361
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000250"
FT   SITE            362
FT                   /note="Important for beta-aspartyl-AMP intermediate
FT                   formation"
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   550 AA;  63335 MW;  68800D6D26B47778 CRC64;
     MCGIICFIQY GGQKIDLVSC LNCLDKLNNR GPDAQSYQVI ELGDITIFLG FTRLAIMDTS
     EAGLQPFKDN NSNYSICNGE IYNYKNLAEK FNIEMQSQCD CEILLPLFNL RGFEGLLSDL
     DAEFATVIVD KYNSKLYAAR DKYGVRPLYY GYNCEKGLIG FASELKALHS VMEYVEQVKP
     NQYVTIDLSF RPSIPFDLQN FVKLFQFTNY HEYYQSHKSL IDYHEPNIEQ LQTSINHLLT
     EAVRKRLYAD RQIGFLLSGG LDSSLIVAIA TRLLGPTNIV CFSVGFEGSP DVAAAREVVK
     FLGIKNHHIV PFSVDIGLNA INDVIKTIET YDITTIRAST PQFIMAKYIQ ENTDIRVLLS
     GEGSDEIHGS YKYMRSAPNS QEFHKETIRL LEELYLFDNK RTDRTMAGNG LEVRVPFLDF
     NYVDFIMNID PNLLMYKSDY IEKKIIRDAF KGYLPENILY RPKEAFSDAV SSKEINWYRS
     IQKITEEIYT DEKLQNSNYK FNKPEIKEAL YYRDIFNSHY GGRDHIIPHY WLPRFQQNNV
     LDPSATILPI