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CARA_ARCFU
ID   CARA_ARCFU              Reviewed;         358 AA.
AC   O28995;
DT   11-JUL-2002, integrated into UniProtKB/Swiss-Prot.
DT   01-JAN-1998, sequence version 1.
DT   25-MAY-2022, entry version 134.
DE   RecName: Full=Carbamoyl-phosphate synthase small chain {ECO:0000255|HAMAP-Rule:MF_01209};
DE            EC=6.3.5.5 {ECO:0000255|HAMAP-Rule:MF_01209};
DE   AltName: Full=Carbamoyl-phosphate synthetase glutamine chain {ECO:0000255|HAMAP-Rule:MF_01209};
GN   Name=carA {ECO:0000255|HAMAP-Rule:MF_01209}; OrderedLocusNames=AF_1273;
OS   Archaeoglobus fulgidus (strain ATCC 49558 / DSM 4304 / JCM 9628 / NBRC
OS   100126 / VC-16).
OC   Archaea; Euryarchaeota; Archaeoglobi; Archaeoglobales; Archaeoglobaceae;
OC   Archaeoglobus.
OX   NCBI_TaxID=224325;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 49558 / DSM 4304 / JCM 9628 / NBRC 100126 / VC-16;
RX   PubMed=9389475; DOI=10.1038/37052;
RA   Klenk H.-P., Clayton R.A., Tomb J.-F., White O., Nelson K.E., Ketchum K.A.,
RA   Dodson R.J., Gwinn M.L., Hickey E.K., Peterson J.D., Richardson D.L.,
RA   Kerlavage A.R., Graham D.E., Kyrpides N.C., Fleischmann R.D.,
RA   Quackenbush J., Lee N.H., Sutton G.G., Gill S.R., Kirkness E.F.,
RA   Dougherty B.A., McKenney K., Adams M.D., Loftus B.J., Peterson S.N.,
RA   Reich C.I., McNeil L.K., Badger J.H., Glodek A., Zhou L., Overbeek R.,
RA   Gocayne J.D., Weidman J.F., McDonald L.A., Utterback T.R., Cotton M.D.,
RA   Spriggs T., Artiach P., Kaine B.P., Sykes S.M., Sadow P.W., D'Andrea K.P.,
RA   Bowman C., Fujii C., Garland S.A., Mason T.M., Olsen G.J., Fraser C.M.,
RA   Smith H.O., Woese C.R., Venter J.C.;
RT   "The complete genome sequence of the hyperthermophilic, sulphate-reducing
RT   archaeon Archaeoglobus fulgidus.";
RL   Nature 390:364-370(1997).
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=2 ATP + H2O + hydrogencarbonate + L-glutamine = 2 ADP +
CC         carbamoyl phosphate + 2 H(+) + L-glutamate + phosphate;
CC         Xref=Rhea:RHEA:18633, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:17544, ChEBI:CHEBI:29985, ChEBI:CHEBI:30616,
CC         ChEBI:CHEBI:43474, ChEBI:CHEBI:58228, ChEBI:CHEBI:58359,
CC         ChEBI:CHEBI:456216; EC=6.3.5.5; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_01209};
CC   -!- PATHWAY: Amino-acid biosynthesis; L-arginine biosynthesis; carbamoyl
CC       phosphate from bicarbonate: step 1/1. {ECO:0000255|HAMAP-
CC       Rule:MF_01209}.
CC   -!- PATHWAY: Pyrimidine metabolism; UMP biosynthesis via de novo pathway;
CC       (S)-dihydroorotate from bicarbonate: step 1/3. {ECO:0000255|HAMAP-
CC       Rule:MF_01209}.
CC   -!- SUBUNIT: Composed of two chains; the small (or glutamine) chain
CC       promotes the hydrolysis of glutamine to ammonia, which is used by the
CC       large (or ammonia) chain to synthesize carbamoyl phosphate.
CC       {ECO:0000255|HAMAP-Rule:MF_01209}.
CC   -!- SIMILARITY: Belongs to the CarA family. {ECO:0000255|HAMAP-
CC       Rule:MF_01209}.
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DR   EMBL; AE000782; AAB89971.1; -; Genomic_DNA.
DR   PIR; H69408; H69408.
DR   RefSeq; WP_010878768.1; NC_000917.1.
DR   AlphaFoldDB; O28995; -.
DR   SMR; O28995; -.
DR   STRING; 224325.AF_1273; -.
DR   MEROPS; C26.A33; -.
DR   EnsemblBacteria; AAB89971; AAB89971; AF_1273.
DR   GeneID; 1484497; -.
DR   KEGG; afu:AF_1273; -.
DR   eggNOG; arCOG00064; Archaea.
DR   HOGENOM; CLU_035901_2_1_2; -.
DR   OMA; CFNTGMT; -.
DR   OrthoDB; 35557at2157; -.
DR   PhylomeDB; O28995; -.
DR   UniPathway; UPA00068; UER00171.
DR   UniPathway; UPA00070; UER00115.
DR   Proteomes; UP000002199; Chromosome.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0004088; F:carbamoyl-phosphate synthase (glutamine-hydrolyzing) activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006207; P:'de novo' pyrimidine nucleobase biosynthetic process; IEA:InterPro.
DR   GO; GO:0044205; P:'de novo' UMP biosynthetic process; IEA:UniProtKB-UniPathway.
DR   GO; GO:0006526; P:arginine biosynthetic process; IEA:UniProtKB-UniRule.
DR   GO; GO:0006541; P:glutamine metabolic process; IEA:UniProtKB-KW.
DR   CDD; cd01744; GATase1_CPSase; 1.
DR   Gene3D; 3.40.50.880; -; 1.
DR   Gene3D; 3.50.30.20; -; 1.
DR   HAMAP; MF_01209; CPSase_S_chain; 1.
DR   InterPro; IPR006274; CarbamoylP_synth_ssu.
DR   InterPro; IPR002474; CarbamoylP_synth_ssu_N.
DR   InterPro; IPR036480; CarbP_synth_ssu_N_sf.
DR   InterPro; IPR029062; Class_I_gatase-like.
DR   InterPro; IPR035686; CPSase_GATase1.
DR   InterPro; IPR017926; GATASE.
DR   Pfam; PF00988; CPSase_sm_chain; 1.
DR   Pfam; PF00117; GATase; 1.
DR   SMART; SM01097; CPSase_sm_chain; 1.
DR   SUPFAM; SSF52021; SSF52021; 1.
DR   SUPFAM; SSF52317; SSF52317; 1.
DR   TIGRFAMs; TIGR01368; CPSaseIIsmall; 1.
DR   PROSITE; PS51273; GATASE_TYPE_1; 1.
PE   3: Inferred from homology;
KW   Amino-acid biosynthesis; Arginine biosynthesis; ATP-binding;
KW   Glutamine amidotransferase; Ligase; Nucleotide-binding;
KW   Pyrimidine biosynthesis; Reference proteome.
FT   CHAIN           1..358
FT                   /note="Carbamoyl-phosphate synthase small chain"
FT                   /id="PRO_0000112355"
FT   DOMAIN          174..358
FT                   /note="Glutamine amidotransferase type-1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01209"
FT   REGION          1..174
FT                   /note="CPSase"
FT   ACT_SITE        249
FT                   /note="Nucleophile"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01209"
FT   ACT_SITE        333
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01209"
FT   ACT_SITE        335
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01209"
SQ   SEQUENCE   358 AA;  39923 MW;  BB5550EED269A4A4 CRC64;
     MKAALALEDG TYLEGKAFGA ERGGLGEIVF CTSMTGYVEA LTDPSYKGQI LMMTYPLIGN
     YGVNREDFES DGVKVEGFVV KELCKNPSNW RSEMSVDELL KQYDVPGIEG VDTRMLTRKI
     RIYGSMKAAI GIGDVDREKL VRKAVEQPFI SDIDLVDKVC VKEAKRFESD GDLEVVLVDC
     GVKMSIVRQL LKRGVNLTVV PYDFPAEKIK EMNPDGVFIS NGPGDPARVK PTIETIRKLA
     GQIPMAGICL GHQLTALALG AKTFKLKFGH HGSNQPVKDF ETGRVFISSQ NHNFAVDTKT
     LPKEFEVTQI NLNDHTVEGM VHKDFPLITV QYHPEAGPGP HDTYFFFDRY VDMLREYR
 
 
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