ID D5UET2_CELFN Unreviewed; 405 AA.
AC D5UET2;
DT 13-JUL-2010, integrated into UniProtKB/TrEMBL.
DT 13-JUL-2010, sequence version 1.
DT 27-MAR-2024, entry version 73.
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 OrderedLocusNames=Cfla_1845 {ECO:0000313|EMBL:ADG74742.1};
OS Cellulomonas flavigena (strain ATCC 482 / DSM 20109 / BCRC 11376 / JCM
OS 18109 / NBRC 3775 / NCIMB 8073 / NRS 134).
OC Bacteria; Actinomycetota; Actinomycetes; Micrococcales; Cellulomonadaceae;
OC Cellulomonas.
OX NCBI_TaxID=446466 {ECO:0000313|EMBL:ADG74742.1, ECO:0000313|Proteomes:UP000000849};
RN [1] {ECO:0000313|EMBL:ADG74742.1, ECO:0000313|Proteomes:UP000000849}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 482 / DSM 20109 / BCRC 11376 / JCM 18109 / NBRC 3775 /
RC NCIMB 8073 / NRS 134 {ECO:0000313|Proteomes:UP000000849};
RX PubMed=21304688; DOI=10.4056/sigs.1012662;
RA Abt B., Foster B., Lapidus A., Clum A., Sun H., Pukall R., Lucas S.,
RA Glavina Del Rio T., Nolan M., Tice H., Cheng J.F., Pitluck S., Liolios K.,
RA Ivanova N., Mavromatis K., Ovchinnikova G., Pati A., Goodwin L., Chen A.,
RA Palaniappan K., Land M., Hauser L., Chang Y.J., Jeffries C.D., Rohde M.,
RA Goker M., Woyke T., Bristow J., Eisen J.A., Markowitz V., Hugenholtz P.,
RA Kyrpides N.C., Klenk H.P.;
RT "Complete genome sequence of Cellulomonas flavigena type strain (134).";
RL Stand. Genomic Sci. 3:15-25(2010).
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}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_01209}.
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DR EMBL; CP001964; ADG74742.1; -; Genomic_DNA.
DR RefSeq; WP_013117076.1; NC_014151.1.
DR AlphaFoldDB; D5UET2; -.
DR STRING; 446466.Cfla_1845; -.
DR KEGG; cfl:Cfla_1845; -.
DR eggNOG; COG0505; Bacteria.
DR HOGENOM; CLU_035901_2_1_11; -.
DR OrthoDB; 9804328at2; -.
DR UniPathway; UPA00068; UER00171.
DR UniPathway; UPA00070; UER00115.
DR Proteomes; UP000000849; 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:UP000000849}.
FT DOMAIN 2..132
FT /note="Carbamoyl-phosphate synthase small subunit N-
FT terminal"
FT /evidence="ECO:0000259|SMART:SM01097"
FT REGION 1..190
FT /note="CPSase"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01209"
FT ACT_SITE 269
FT /note="Nucleophile"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01209,
FT ECO:0000256|PROSITE-ProRule:PRU00605"
FT ACT_SITE 364
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01209,
FT ECO:0000256|PROSITE-ProRule:PRU00605"
FT ACT_SITE 366
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01209,
FT ECO:0000256|PROSITE-ProRule:PRU00605"
FT BINDING 46
FT /ligand="L-glutamine"
FT /ligand_id="ChEBI:CHEBI:58359"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01209"
FT BINDING 241
FT /ligand="L-glutamine"
FT /ligand_id="ChEBI:CHEBI:58359"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01209"
FT BINDING 243
FT /ligand="L-glutamine"
FT /ligand_id="ChEBI:CHEBI:58359"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01209"
FT BINDING 273
FT /ligand="L-glutamine"
FT /ligand_id="ChEBI:CHEBI:58359"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01209"
FT BINDING 311
FT /ligand="L-glutamine"
FT /ligand_id="ChEBI:CHEBI:58359"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01209"
FT BINDING 313
FT /ligand="L-glutamine"
FT /ligand_id="ChEBI:CHEBI:58359"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01209"
FT BINDING 314
FT /ligand="L-glutamine"
FT /ligand_id="ChEBI:CHEBI:58359"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01209"
SQ SEQUENCE 405 AA; 43249 MW; F737D42691FB75AD CRC64;
MSDAILVLED GRTFSGRAYG ATGRTVGEIV FNTGMTGYQE TLTDPSYHRQ IVVMTAPHIG
NTGVNDDDPE STRIWVAGYV VRDPARRSSS WRARRTLDED LVAQGVVGIS GIDTRALTRH
LRERGVMRAG IFSGAALARP EGERRPVDEL VDEVLAAPPM VGADLAGEVS VDTAYVVPAL
GADGAPLDEP VARVAAVDLG IKSMTPQRMA ERGIEVHVLP ATAAIDDVLA VQPDGVFFSN
GPGDPSAARH EIDVLRGVLD RRIPFFGICY GNQLFGRALG FGTYKLRYGH RGVNQPVMDR
TTGKVEITAH NHGFAVDAPL DAETVAPFDG GRYGRVRVSH VDLNDDVVEG LEALDLPAFS
VQYHPEAAAG PHDAAYLFDR FLDLMTTHRG TGGTPDAATT GKGAA
//
