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Protein

Carbamoyl-phosphate synthase small chain

Gene

carA

Organism
Aquifex aeolicus (strain VF5)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Protein inferred from homologyi

Functioni

Catalytic activityi

2 ATP + L-glutamine + HCO3- + H2O = 2 ADP + phosphate + L-glutamate + carbamoyl phosphate.UniRule annotation

Pathwayi: L-arginine biosynthesis

This protein is involved in step 1 of the subpathway that synthesizes carbamoyl phosphate from bicarbonate.UniRule annotation
Proteins known to be involved in this subpathway in this organism are:
  1. Carbamoyl-phosphate synthase large chain, C-terminal section (carB2), Carbamoyl-phosphate synthase large chain, N-terminal section (carB1), Carbamoyl-phosphate synthase small chain (carA)
This subpathway is part of the pathway L-arginine biosynthesis, which is itself part of Amino-acid biosynthesis.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes carbamoyl phosphate from bicarbonate, the pathway L-arginine biosynthesis and in Amino-acid biosynthesis.

Pathwayi: UMP biosynthesis via de novo pathway

This protein is involved in step 1 of the subpathway that synthesizes (S)-dihydroorotate from bicarbonate.UniRule annotation
Proteins known to be involved in the 3 steps of the subpathway in this organism are:
  1. Carbamoyl-phosphate synthase large chain, C-terminal section (carB2), Carbamoyl-phosphate synthase large chain, N-terminal section (carB1), Carbamoyl-phosphate synthase small chain (carA)
  2. Aspartate carbamoyltransferase (pyrB)
  3. Dihydroorotase (pyrC)
This subpathway is part of the pathway UMP biosynthesis via de novo pathway, which is itself part of Pyrimidine metabolism.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes (S)-dihydroorotate from bicarbonate, the pathway UMP biosynthesis via de novo pathway and in Pyrimidine metabolism.

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Active sitei264 – 2641NucleophileUniRule annotation
Active sitei348 – 3481UniRule annotation
Active sitei350 – 3501UniRule annotation

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Ligase

Keywords - Biological processi

Amino-acid biosynthesis, Arginine biosynthesis, Pyrimidine biosynthesis

Keywords - Ligandi

ATP-binding, Nucleotide-binding

Enzyme and pathway databases

BioCyciAAEO224324:GJBH-306-MONOMER.
UniPathwayiUPA00068; UER00171.
UPA00070; UER00115.

Names & Taxonomyi

Protein namesi
Recommended name:
Carbamoyl-phosphate synthase small chainUniRule annotation (EC:6.3.5.5UniRule annotation)
Alternative name(s):
Carbamoyl-phosphate synthetase glutamine chainUniRule annotation
Gene namesi
Name:carAUniRule annotation
Ordered Locus Names:aq_410
OrganismiAquifex aeolicus (strain VF5)
Taxonomic identifieri224324 [NCBI]
Taxonomic lineageiBacteriaAquificaeAquificalesAquificaceaeAquifex
Proteomesi
  • UP000000798 Componenti: Chromosome

Subcellular locationi

GO - Cellular componenti

Complete GO annotation...

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 371371Carbamoyl-phosphate synthase small chainPRO_0000112245Add
BLAST

Interactioni

Subunit structurei

Composed of two chains; the small (or glutamine) chain promotes the hydrolysis of glutamine to ammonia, which is used by the large (or ammonia) chain to synthesize carbamoyl phosphate.UniRule annotation

Protein-protein interaction databases

STRINGi224324.aq_410.

Structurei

3D structure databases

ProteinModelPortaliO66727.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Domaini189 – 371183Glutamine amidotransferase type-1UniRule annotationAdd
BLAST

Region

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Regioni1 – 185185CPSaseAdd
BLAST

Sequence similaritiesi

Belongs to the CarA family.UniRule annotation
Contains 1 glutamine amidotransferase type-1 domain.UniRule annotation

Keywords - Domaini

Glutamine amidotransferase

Phylogenomic databases

eggNOGiENOG4105C1M. Bacteria.
COG0505. LUCA.
HOGENOMiHOG000038087.
InParanoidiO66727.
KOiK01956.
OMAiTNAHIGN.
OrthoDBiEOG61ZTH6.

Family and domain databases

Gene3Di3.40.50.880. 1 hit.
3.50.30.20. 1 hit.
HAMAPiMF_01209. CPSase_S_chain.
InterProiIPR006274. CarbamoylP_synth_ssu.
IPR002474. CarbamoylP_synth_ssu_N.
IPR029062. Class_I_gatase-like.
IPR017926. GATASE.
[Graphical view]
PfamiPF00988. CPSase_sm_chain. 1 hit.
PF00117. GATase. 1 hit.
[Graphical view]
SMARTiSM01097. CPSase_sm_chain. 1 hit.
[Graphical view]
SUPFAMiSSF52021. SSF52021. 1 hit.
SSF52317. SSF52317. 1 hit.
TIGRFAMsiTIGR01368. CPSaseIIsmall. 1 hit.
PROSITEiPS51273. GATASE_TYPE_1. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

O66727-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MRKTAILALE DGSYFVGYSF GAEGETGGEL VFNTSMTGYQ EILTDPSYKG
60 70 80 90 100
QIVVMTYTQI GNYGVNDEDI ESKSVQVNGF VVKEAFFRYS NWRAKKSLDE
110 120 130 140 150
YLKENNVVGI YGIDTRALVK KIREKGSMKG VISTVEKDPK KLVQKARELP
160 170 180 190 200
DISEQNLVEE VSAKDIYYWN QGDYDPRRGF LYRENEKPLV AVIDFGVKFN
210 220 230 240 250
ILRRLVSEGA KVVVVPPENA KEAIEKINPD AIFLSNGPGD PERVISGIRL
260 270 280 290 300
TREYMEKKPI MGICLGCQII GLALGGKTYK LKFGHHGGNH PVKDLRTGKI
310 320 330 340 350
EITAQNHNFA IDPESLPEDV EVTHLNLLDN TVEGIKHKHL PIFAVQYHPE
360 370
NSPGPHDSYY LFKEFVKMAQ G
Length:371
Mass (Da):41,683
Last modified:August 1, 1998 - v1
Checksum:i3EF695880690F582
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AE000657 Genomic DNA. Translation: AAC06674.1.
PIRiC70337.
RefSeqiNP_213287.1. NC_000918.1.
WP_010880225.1. NC_000918.1.

Genome annotation databases

EnsemblBacteriaiAAC06674; AAC06674; aq_410.
GeneIDi1193053.
KEGGiaae:aq_410.
PATRICi20958402. VBIAquAeo85532_0337.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AE000657 Genomic DNA. Translation: AAC06674.1.
PIRiC70337.
RefSeqiNP_213287.1. NC_000918.1.
WP_010880225.1. NC_000918.1.

3D structure databases

ProteinModelPortaliO66727.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi224324.aq_410.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiAAC06674; AAC06674; aq_410.
GeneIDi1193053.
KEGGiaae:aq_410.
PATRICi20958402. VBIAquAeo85532_0337.

Phylogenomic databases

eggNOGiENOG4105C1M. Bacteria.
COG0505. LUCA.
HOGENOMiHOG000038087.
InParanoidiO66727.
KOiK01956.
OMAiTNAHIGN.
OrthoDBiEOG61ZTH6.

Enzyme and pathway databases

UniPathwayiUPA00068; UER00171.
UPA00070; UER00115.
BioCyciAAEO224324:GJBH-306-MONOMER.

Family and domain databases

Gene3Di3.40.50.880. 1 hit.
3.50.30.20. 1 hit.
HAMAPiMF_01209. CPSase_S_chain.
InterProiIPR006274. CarbamoylP_synth_ssu.
IPR002474. CarbamoylP_synth_ssu_N.
IPR029062. Class_I_gatase-like.
IPR017926. GATASE.
[Graphical view]
PfamiPF00988. CPSase_sm_chain. 1 hit.
PF00117. GATase. 1 hit.
[Graphical view]
SMARTiSM01097. CPSase_sm_chain. 1 hit.
[Graphical view]
SUPFAMiSSF52021. SSF52021. 1 hit.
SSF52317. SSF52317. 1 hit.
TIGRFAMsiTIGR01368. CPSaseIIsmall. 1 hit.
PROSITEiPS51273. GATASE_TYPE_1. 1 hit.
[Graphical view]
ProtoNetiSearch...

Publicationsi

  1. Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: VF5.

Entry informationi

Entry nameiCARA_AQUAE
AccessioniPrimary (citable) accession number: O66727
Entry historyi
Integrated into UniProtKB/Swiss-Prot: July 11, 2002
Last sequence update: August 1, 1998
Last modified: February 17, 2016
This is version 109 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  2. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.