UniProtKB - A0A165K240 (A0A165K240_9GAMM)
Protein
GTP cyclohydrolase-2
Gene
ribA
Organism
Shewanella baltica
Status
Functioni
Catalyzes the conversion of GTP to 2,5-diamino-6-ribosylamino-4(3H)-pyrimidinone 5'-phosphate (DARP), formate and pyrophosphate.UniRule annotation
Catalytic activityi
- GTP + 3 H2O = 2,5-diamino-6-hydroxy-4-(5-phosphoribosylamino)-pyrimidine + diphosphate + formate + 2 H+UniRule annotationSAAS annotationEC:3.5.4.25UniRule annotationSAAS annotation
Cofactori
Zn2+UniRule annotationNote: Binds 1 zinc ion per subunit.UniRule annotation
: riboflavin biosynthesis Pathwayi
This protein is involved in step 1 of the subpathway that synthesizes 5-amino-6-(D-ribitylamino)uracil from GTP.UniRule annotationProteins known to be involved in the 4 steps of the subpathway in this organism are:
- GTP cyclohydrolase-2 (ribA)
- Riboflavin biosynthesis protein RibD (A1L58_13045), Riboflavin biosynthesis protein RibD (ribD)
- Riboflavin biosynthesis protein RibD (A1L58_13045), Riboflavin biosynthesis protein RibD (ribD)
- no protein annotated in this organism
View all proteins of this organism that are known to be involved in the subpathway that synthesizes 5-amino-6-(D-ribitylamino)uracil from GTP, the pathway riboflavin biosynthesis and in Cofactor biosynthesis.
Sites
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Metal bindingi | 54 | Zinc; catalyticUniRule annotation | 1 | |
Metal bindingi | 65 | Zinc; catalyticUniRule annotation | 1 | |
Metal bindingi | 67 | Zinc; catalyticUniRule annotation | 1 | |
Binding sitei | 70 | GTPUniRule annotation | 1 | |
Binding sitei | 114 | GTPUniRule annotation | 1 | |
Active sitei | 126 | Proton acceptorUniRule annotation | 1 | |
Active sitei | 128 | NucleophileUniRule annotation | 1 | |
Binding sitei | 149 | GTPUniRule annotation | 1 | |
Binding sitei | 154 | GTPUniRule annotation | 1 |
Regions
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Nucleotide bindingi | 49 – 53 | GTPUniRule annotation | 5 | |
Nucleotide bindingi | 92 – 94 | GTPUniRule annotation | 3 |
GO - Molecular functioni
- GTP binding Source: UniProtKB-KW
- GTP cyclohydrolase II activity Source: UniProtKB-UniRule
- zinc ion binding Source: UniProtKB-UniRule
GO - Biological processi
- riboflavin biosynthetic process Source: UniProtKB-UniRule
Keywordsi
Molecular function | HydrolaseUniRule annotationSAAS annotationImported |
Biological process | Riboflavin biosynthesisUniRule annotationSAAS annotation |
Ligand | GTP-bindingUniRule annotationSAAS annotation, Metal-bindingUniRule annotationSAAS annotation, Nucleotide-binding, ZincUniRule annotation |
Enzyme and pathway databases
UniPathwayi | UPA00275;UER00400 |
Names & Taxonomyi
Protein namesi | Recommended name: GTP cyclohydrolase-2UniRule annotation (EC:3.5.4.25UniRule annotation)Alternative name(s): GTP cyclohydrolase IIUniRule annotation |
Gene namesi | Name:ribAUniRule annotationImported ORF Names:A1L58_00445Imported, NCTC10735_02603Imported |
Organismi | Shewanella balticaImported |
Taxonomic identifieri | 62322 [NCBI] |
Taxonomic lineagei | Bacteria › Proteobacteria › Gammaproteobacteria › Alteromonadales › Shewanellaceae › Shewanella |
Proteomesi |
|
Family & Domainsi
Domains and Repeats
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Domaini | 7 – 170 | GTP_cyclohydro2InterPro annotationAdd BLAST | 164 |
Sequence similaritiesi
Belongs to the GTP cyclohydrolase II family.UniRule annotation
Family and domain databases
CDDi | cd00641 GTP_cyclohydro2, 1 hit |
Gene3Di | 3.40.50.10990, 1 hit |
HAMAPi | MF_00179 RibA, 1 hit |
InterProi | View protein in InterPro IPR032677 GTP_cyclohydro_II IPR000926 RibA IPR036144 RibA-like_sf |
Pfami | View protein in Pfam PF00925 GTP_cyclohydro2, 1 hit |
SUPFAMi | SSF142695 SSF142695, 1 hit |
TIGRFAMsi | TIGR00505 ribA, 1 hit |
i Sequence
Sequence statusi: Complete.
A0A165K240-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MSIKYVATSK LPTPWGVFAM HGFEDTESGK EHVALTFGTL SADEPVLGRI
60 70 80 90 100
HSECLTGDAL FSLRCDCGFQ LQAAMQNIAE TGSGFILYLR QEGRGIGLLN
110 120 130 140 150
KIRAYELQDK GANTVEANEQ LGFEADMRKY DMIKPMLEQI GVKHVRLMTN
160 170 180 190 200
NPRKVKAMKE FGIEVVERVP LQVGKNRYNE AYLKTKSTEL GHMMSEYHFM
DENK
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | LWED01000018 Genomic DNA Translation: KZK69744.1 UGYM01000002 Genomic DNA Translation: SUI68634.1 |
RefSeqi | WP_006087423.1, NZ_UGYM01000002.1 |
Genome annotation databases
EnsemblBacteriai | KZK69744; KZK69744; A1L58_00445 |
GeneIDi | 11771918 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | LWED01000018 Genomic DNA Translation: KZK69744.1 UGYM01000002 Genomic DNA Translation: SUI68634.1 |
RefSeqi | WP_006087423.1, NZ_UGYM01000002.1 |
3D structure databases
ModBasei | Search... |
SWISS-MODEL-Workspacei | Submit a new modelling project... |
Genome annotation databases
EnsemblBacteriai | KZK69744; KZK69744; A1L58_00445 |
GeneIDi | 11771918 |
Enzyme and pathway databases
UniPathwayi | UPA00275;UER00400 |
Family and domain databases
CDDi | cd00641 GTP_cyclohydro2, 1 hit |
Gene3Di | 3.40.50.10990, 1 hit |
HAMAPi | MF_00179 RibA, 1 hit |
InterProi | View protein in InterPro IPR032677 GTP_cyclohydro_II IPR000926 RibA IPR036144 RibA-like_sf |
Pfami | View protein in Pfam PF00925 GTP_cyclohydro2, 1 hit |
SUPFAMi | SSF142695 SSF142695, 1 hit |
TIGRFAMsi | TIGR00505 ribA, 1 hit |
ProtoNeti | Search... |
MobiDBi | Search... |
Entry informationi
Entry namei | A0A165K240_9GAMM | |
Accessioni | A0A165K240Primary (citable) accession number: A0A165K240 | |
Entry historyi | Integrated into UniProtKB/TrEMBL: | July 6, 2016 |
Last sequence update: | July 6, 2016 | |
Last modified: | November 13, 2019 | |
This is version 21 of the entry and version 1 of the sequence. See complete history. | ||
Entry statusi | Unreviewed (UniProtKB/TrEMBL) |