CARA_SYMTH
ID CARA_SYMTH Reviewed; 363 AA.
AC Q67Q55;
DT 01-MAR-2005, integrated into UniProtKB/Swiss-Prot.
DT 11-OCT-2004, sequence version 1.
DT 25-MAY-2022, entry version 108.
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=STH1203;
OS Symbiobacterium thermophilum (strain T / IAM 14863).
OC Bacteria; Firmicutes; Clostridia; Eubacteriales; Symbiobacteriaceae;
OC Symbiobacterium.
OX NCBI_TaxID=292459;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=T / IAM 14863;
RX PubMed=15383646; DOI=10.1093/nar/gkh830;
RA Ueda K., Yamashita A., Ishikawa J., Shimada M., Watsuji T., Morimura K.,
RA Ikeda H., Hattori M., Beppu T.;
RT "Genome sequence of Symbiobacterium thermophilum, an uncultivable bacterium
RT that depends on microbial commensalism.";
RL Nucleic Acids Res. 32:4937-4944(2004).
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}.
CC ---------------------------------------------------------------------------
CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC ---------------------------------------------------------------------------
DR EMBL; AP006840; BAD40188.1; -; Genomic_DNA.
DR AlphaFoldDB; Q67Q55; -.
DR SMR; Q67Q55; -.
DR STRING; 292459.STH1203; -.
DR MEROPS; C26.A33; -.
DR EnsemblBacteria; BAD40188; BAD40188; STH1203.
DR KEGG; sth:STH1203; -.
DR eggNOG; COG0505; Bacteria.
DR HOGENOM; CLU_035901_2_1_9; -.
DR OMA; CFNTGMT; -.
DR UniPathway; UPA00068; UER00171.
DR UniPathway; UPA00070; UER00115.
DR Proteomes; UP000000417; 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..363
FT /note="Carbamoyl-phosphate synthase small chain"
FT /id="PRO_0000112336"
FT DOMAIN 171..359
FT /note="Glutamine amidotransferase type-1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01209"
FT REGION 1..167
FT /note="CPSase"
FT ACT_SITE 248
FT /note="Nucleophile"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01209"
FT ACT_SITE 332
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01209"
FT ACT_SITE 334
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01209"
SQ SEQUENCE 363 AA; 38466 MW; 73FD5A197D26F625 CRC64;
MEDGTLFAGA GFGAPAVQAG EVVFNTGMTG YQEVVTDPSY YGQIVVMTYP LIGNYGVTAA
DGESRQPWIR GLVVKELCDR PSHWQAVGSL SDYLAGCGVP ILAGLDTRAL TRHLRSHGTM
RGVIATLPEG AEPGPAQVAA WVETARAFRL EGAVRSVATA APYRIPGPGP RVVAVDFGAK
ENILRELTAR GCDVTVVPAT ASAEEVLSLR PEGVVLTNGP GAPTDVPEAV EMVRGLLSQG
DLPIFGICLG HQIAALALGA TTYKLPYGHR GANHPVKELA TGRIHITSQN HGYAVAAESL
PPEVEVTHVS LHDGTVEGLA HRRLPLFTVQ YHPEACPGPR ENRYLFDRFL ALVDRSAVST
RTA
