ID F5XVT6_RAMTT Unreviewed; 387 AA.
AC F5XVT6;
DT 27-JUL-2011, integrated into UniProtKB/TrEMBL.
DT 27-JUL-2011, sequence version 1.
DT 27-MAR-2024, entry version 66.
DE RecName: Full=Carbamoyl phosphate synthase small chain {ECO:0000256|HAMAP-Rule:MF_01209};
DE EC=6.3.5.5 {ECO:0000256|HAMAP-Rule:MF_01209};
DE AltName: Full=Carbamoyl phosphate synthetase glutamine chain {ECO:0000256|HAMAP-Rule:MF_01209};
GN Name=carA {ECO:0000256|HAMAP-Rule:MF_01209,
GN ECO:0000313|EMBL:AEG92849.1};
GN OrderedLocusNames=Rta_17590 {ECO:0000313|EMBL:AEG92849.1};
OS Ramlibacter tataouinensis (strain ATCC BAA-407 / DSM 14655 / LMG 21543 /
OS TTB310).
OC Bacteria; Pseudomonadota; Betaproteobacteria; Burkholderiales;
OC Comamonadaceae; Ramlibacter.
OX NCBI_TaxID=365046 {ECO:0000313|EMBL:AEG92849.1, ECO:0000313|Proteomes:UP000008385};
RN [1] {ECO:0000313|Proteomes:UP000008385}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC BAA-407 / DSM 14655 / LMG 21543 / TTB310
RC {ECO:0000313|Proteomes:UP000008385};
RA Barakat M., Ortet P., De Luca G., Jourlin-Castelli C., Ansaldi M., Py B.,
RA Fichant G., Coutinho P., Voulhoux R., Bastien O., Roy S., Marechal E.,
RA Henrissat B., Quentin Y., Noirot P., Filloux A., Mejean V., DuBow M.,
RA Barras F., Heulin T.;
RT "Genome of the cyst-dividing bacterium Ramlibacter tataouinensis.";
RL Submitted (JAN-2006) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EMBL:AEG92849.1, ECO:0000313|Proteomes:UP000008385}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC BAA-407 / DSM 14655 / LMG 21543 / TTB310
RC {ECO:0000313|Proteomes:UP000008385};
RX PubMed=21912644; DOI=10.1371/journal.pone.0023784;
RA De Luca G., Barakat M., Ortet P., Fochesato S., Jourlin-Castelli C.,
RA Ansaldi M., Py B., Fichant G., Coutinho P.M., Voulhoux R., Bastien O.,
RA Marechal E., Henrissat B., Quentin Y., Noirot P., Filloux A., Mejean V.,
RA Dubow M.S., Barras F., Barbe V., Weissenbach J., Mihalcescu I.,
RA Vermeglio A., Achouak W., Heulin T.;
RT "The Cyst-Dividing Bacterium Ramlibacter tataouinensis TTB310 Genome
RT Reveals a Well-Stocked Toolbox for Adaptation to a Desert Environment.";
RL PLoS ONE 6:E23784-E23784(2011).
CC -!- FUNCTION: Small subunit of the glutamine-dependent carbamoyl phosphate
CC synthetase (CPSase). CPSase catalyzes the formation of carbamoyl
CC phosphate from the ammonia moiety of glutamine, carbonate, and
CC phosphate donated by ATP, constituting the first step of 2 biosynthetic
CC pathways, one leading to arginine and/or urea and the other to
CC pyrimidine nucleotides. The small subunit (glutamine amidotransferase)
CC binds and cleaves glutamine to supply the large subunit with the
CC substrate ammonia. {ECO:0000256|HAMAP-Rule:MF_01209}.
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:0000256|HAMAP-
CC Rule:MF_01209};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=H2O + L-glutamine = L-glutamate + NH4(+);
CC Xref=Rhea:RHEA:15889, ChEBI:CHEBI:15377, ChEBI:CHEBI:28938,
CC ChEBI:CHEBI:29985, ChEBI:CHEBI:58359; Evidence={ECO:0000256|HAMAP-
CC Rule:MF_01209};
CC -!- PATHWAY: Amino-acid biosynthesis; L-arginine biosynthesis; carbamoyl
CC phosphate from bicarbonate: step 1/1. {ECO:0000256|ARBA:ARBA00005077,
CC ECO:0000256|HAMAP-Rule:MF_01209}.
CC -!- PATHWAY: Pyrimidine metabolism; UMP biosynthesis via de novo pathway;
CC (S)-dihydroorotate from bicarbonate: step 1/3. {ECO:0000256|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. Tetramer of
CC heterodimers (alpha,beta)4. {ECO:0000256|HAMAP-Rule:MF_01209}.
CC -!- SIMILARITY: Belongs to the CarA family. {ECO:0000256|ARBA:ARBA00007800,
CC ECO:0000256|HAMAP-Rule:MF_01209}.
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DR EMBL; CP000245; AEG92849.1; -; Genomic_DNA.
DR AlphaFoldDB; F5XVT6; -.
DR STRING; 365046.Rta_17590; -.
DR KEGG; rta:Rta_17590; -.
DR PATRIC; fig|365046.3.peg.1793; -.
DR eggNOG; COG0505; Bacteria.
DR HOGENOM; CLU_035901_2_1_4; -.
DR UniPathway; UPA00068; UER00171.
DR UniPathway; UPA00070; UER00115.
DR Proteomes; UP000008385; 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-UniRule.
DR CDD; cd01744; GATase1_CPSase; 1.
DR Gene3D; 3.40.50.880; -; 1.
DR Gene3D; 3.50.30.20; Carbamoyl-phosphate synthase small subunit, N-terminal domain; 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 NCBIfam; TIGR01368; CPSaseIIsmall; 1.
DR PANTHER; PTHR11405:SF4; CARBAMOYL-PHOSPHATE SYNTHASE ARGININE-SPECIFIC SMALL CHAIN; 1.
DR PANTHER; PTHR11405; CARBAMOYLTRANSFERASE FAMILY MEMBER; 1.
DR Pfam; PF00988; CPSase_sm_chain; 1.
DR Pfam; PF00117; GATase; 1.
DR PRINTS; PR00099; CPSGATASE.
DR PRINTS; PR00096; GATASE.
DR SMART; SM01097; CPSase_sm_chain; 1.
DR SUPFAM; SSF52021; Carbamoyl phosphate synthetase, small subunit N-terminal domain; 1.
DR SUPFAM; SSF52317; Class I glutamine amidotransferase-like; 1.
DR PROSITE; PS51273; GATASE_TYPE_1; 1.
PE 3: Inferred from homology;
KW Amino-acid biosynthesis {ECO:0000256|HAMAP-Rule:MF_01209};
KW Arginine biosynthesis {ECO:0000256|HAMAP-Rule:MF_01209};
KW ATP-binding {ECO:0000256|ARBA:ARBA00022840, ECO:0000256|HAMAP-
KW Rule:MF_01209};
KW Glutamine amidotransferase {ECO:0000256|HAMAP-Rule:MF_01209,
KW ECO:0000256|PROSITE-ProRule:PRU00605};
KW Ligase {ECO:0000256|ARBA:ARBA00022598, ECO:0000256|HAMAP-Rule:MF_01209};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741, ECO:0000256|HAMAP-
KW Rule:MF_01209}; Pyrimidine biosynthesis {ECO:0000256|HAMAP-Rule:MF_01209};
KW Reference proteome {ECO:0000313|Proteomes:UP000008385}.
FT DOMAIN 8..138
FT /note="Carbamoyl-phosphate synthase small subunit N-
FT terminal"
FT /evidence="ECO:0000259|SMART:SM01097"
FT REGION 1..200
FT /note="CPSase"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01209"
FT ACT_SITE 277
FT /note="Nucleophile"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01209,
FT ECO:0000256|PROSITE-ProRule:PRU00605"
FT ACT_SITE 361
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01209,
FT ECO:0000256|PROSITE-ProRule:PRU00605"
FT ACT_SITE 363
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01209,
FT ECO:0000256|PROSITE-ProRule:PRU00605"
FT BINDING 52
FT /ligand="L-glutamine"
FT /ligand_id="ChEBI:CHEBI:58359"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01209"
FT BINDING 249
FT /ligand="L-glutamine"
FT /ligand_id="ChEBI:CHEBI:58359"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01209"
FT BINDING 251
FT /ligand="L-glutamine"
FT /ligand_id="ChEBI:CHEBI:58359"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01209"
FT BINDING 278
FT /ligand="L-glutamine"
FT /ligand_id="ChEBI:CHEBI:58359"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01209"
FT BINDING 281
FT /ligand="L-glutamine"
FT /ligand_id="ChEBI:CHEBI:58359"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01209"
FT BINDING 319
FT /ligand="L-glutamine"
FT /ligand_id="ChEBI:CHEBI:58359"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01209"
FT BINDING 321
FT /ligand="L-glutamine"
FT /ligand_id="ChEBI:CHEBI:58359"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01209"
FT BINDING 322
FT /ligand="L-glutamine"
FT /ligand_id="ChEBI:CHEBI:58359"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01209"
SQ SEQUENCE 387 AA; 41859 MW; FD3AD429B7F42312 CRC64;
MSQQRALPPA ILALADGTVF LGTSIGAAGS TSGEVVFNTA ITGYQEILTD PSYCRQIVTL
TYPHIGNYGV NEEDVEASKV HAAGLIIRDL PLVASNFRTS LTLSQYLQRE NTVGIADIDT
RKLTRLLRTQ GAQNGCILAL QPGQEVTPAL VDQAVAQARK APAMTGQDLA KDVSVGQPYD
WTQTEWELGS GYGKLETPRY HVVAFDYGVK KNILRMLAER GCKVTVVPAR TPAAEVRKLK
PDGVFLSNGP GDPQPCEYAI EATRELVEEG YPTFGICLGH QILALASGAS TYKMKFGHHG
ANHPVKDLEN GRVSITSQNH GFAVDEKTLP ANLRPTHVSL FDGTLQGLAR TDKPAFCFQG
HPEASPGPHD IGYLFDKFTG LMDEKKK
//
