UniProtKB - O33778 (HIS3_SACS2)
Protein
Phosphoribosyl-AMP cyclohydrolase
Gene
hisI
Organism
Saccharolobus solfataricus (strain ATCC 35092 / DSM 1617 / JCM 11322 / P2) (Sulfolobus solfataricus)
Status
Functioni
Catalyzes the hydrolysis of the adenine ring of phosphoribosyl-AMP.By similarity
Catalytic activityi
- 1-(5-phospho-β-D-ribosyl)-5'-AMP + H2O = 1-(5-phospho-β-D-ribosyl)-5-[(5-phospho-β-D-ribosylamino)methylideneamino]imidazole-4-carboxamideEC:3.5.4.19
Cofactori
Protein has several cofactor binding sites:- Mg2+By similarityNote: Binds 1 Mg2+ ion per subunit.By similarity
- Zn2+By similarityNote: Binds 1 zinc ion per subunit.By similarity
: L-histidine biosynthesis Pathwayi
This protein is involved in step 3 of the subpathway that synthesizes L-histidine from 5-phospho-alpha-D-ribose 1-diphosphate.Proteins known to be involved in the 9 steps of the subpathway in this organism are:
- ATP phosphoribosyltransferase (hisG)
- Phosphoribosyl-ATP pyrophosphatase (hisE)
- Phosphoribosyl-AMP cyclohydrolase (hisI)
- 1-(5-phosphoribosyl)-5-[(5-phosphoribosylamino)methylideneamino] imidazole-4-carboxamide isomerase (hisA)
- Imidazole glycerol phosphate synthase subunit HisF (hisF), Imidazole glycerol phosphate synthase subunit HisH (hisH)
- Imidazoleglycerol-phosphate dehydratase (hisB)
- Histidinol-phosphate aminotransferase (hisC)
- no protein annotated in this organism
- Histidinol dehydrogenase (hisD)
View all proteins of this organism that are known to be involved in the subpathway that synthesizes L-histidine from 5-phospho-alpha-D-ribose 1-diphosphate, the pathway L-histidine biosynthesis and in Amino-acid biosynthesis.
Sites
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Metal bindingi | 48 | MagnesiumBy similarity | 1 | |
Metal bindingi | 49 | Zinc; shared with dimeric partnerBy similarity | 1 | |
Metal bindingi | 50 | MagnesiumBy similarity | 1 | |
Metal bindingi | 52 | MagnesiumBy similarity | 1 | |
Metal bindingi | 65 | Zinc; shared with dimeric partnerBy similarity | 1 | |
Metal bindingi | 72 | Zinc; shared with dimeric partnerBy similarity | 1 |
GO - Molecular functioni
- metal ion binding Source: UniProtKB-KW
- phosphoribosyl-AMP cyclohydrolase activity Source: UniProtKB-EC
GO - Biological processi
- histidine biosynthetic process Source: UniProtKB-UniPathway
Keywordsi
Molecular function | Hydrolase |
Biological process | Amino-acid biosynthesis, Histidine biosynthesis |
Ligand | Magnesium, Metal-binding, Zinc |
Enzyme and pathway databases
UniPathwayi | UPA00031;UER00008 |
Names & Taxonomyi
Protein namesi | |
Gene namesi | Name:hisI Ordered Locus Names:SSO6227 |
Organismi | Saccharolobus solfataricus (strain ATCC 35092 / DSM 1617 / JCM 11322 / P2) (Sulfolobus solfataricus) |
Taxonomic identifieri | 273057 [NCBI] |
Taxonomic lineagei | Archaea › Crenarchaeota › Thermoprotei › Sulfolobales › Sulfolobaceae › Saccharolobus › |
Proteomesi |
|
Subcellular locationi
Cytoplasm and Cytosol
- Cytoplasm By similarity
Other locations
- cytoplasm Source: UniProtKB-SubCell
Keywords - Cellular componenti
CytoplasmPTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
ChainiPRO_0000136514 | 1 – 85 | Phosphoribosyl-AMP cyclohydrolaseAdd BLAST | 85 |
Interactioni
Subunit structurei
Homodimer.
By similarityProtein-protein interaction databases
STRINGi | 273057.SSO6227 |
Family & Domainsi
Sequence similaritiesi
Belongs to the PRA-CH family.Curated
Phylogenomic databases
eggNOGi | arCOG02676, Archaea |
HOGENOMi | CLU_048577_5_3_2 |
InParanoidi | O33778 |
Family and domain databases
Gene3Di | 3.10.20.400, 1 hit |
InterProi | View protein in InterPro IPR002496, PRib_AMP_CycHydrolase_dom IPR038019, PRib_AMP_CycHydrolase_sf |
Pfami | View protein in Pfam PF01502, PRA-CH, 1 hit |
SUPFAMi | SSF141734, SSF141734, 1 hit |
i Sequence
Sequence statusi: Complete.
O33778-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MVGNMNREAL FKTLTTGYLH FWSLSRKKLW LKGETSGNFQ IIEEFKVDCD
60 70 80
ADAVLFKVTS LGPICHTGNY TCFYRSYDEL VNSKS
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | U82227 Genomic DNA Translation: AAB63026.1 AE006641 Genomic DNA Translation: AAK40912.1 |
PIRi | A90207 |
Genome annotation databases
EnsemblBacteriai | AAK40912; AAK40912; SSO6227 |
KEGGi | sso:SSO6227 |
PATRICi | fig|273057.12.peg.608 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | U82227 Genomic DNA Translation: AAB63026.1 AE006641 Genomic DNA Translation: AAK40912.1 |
PIRi | A90207 |
3D structure databases
SMRi | O33778 |
ModBasei | Search... |
Protein-protein interaction databases
STRINGi | 273057.SSO6227 |
Genome annotation databases
EnsemblBacteriai | AAK40912; AAK40912; SSO6227 |
KEGGi | sso:SSO6227 |
PATRICi | fig|273057.12.peg.608 |
Phylogenomic databases
eggNOGi | arCOG02676, Archaea |
HOGENOMi | CLU_048577_5_3_2 |
InParanoidi | O33778 |
Enzyme and pathway databases
UniPathwayi | UPA00031;UER00008 |
Family and domain databases
Gene3Di | 3.10.20.400, 1 hit |
InterProi | View protein in InterPro IPR002496, PRib_AMP_CycHydrolase_dom IPR038019, PRib_AMP_CycHydrolase_sf |
Pfami | View protein in Pfam PF01502, PRA-CH, 1 hit |
SUPFAMi | SSF141734, SSF141734, 1 hit |
ProtoNeti | Search... |
MobiDBi | Search... |
Entry informationi
Entry namei | HIS3_SACS2 | |
Accessioni | O33778Primary (citable) accession number: O33778 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | December 15, 1998 |
Last sequence update: | January 1, 1998 | |
Last modified: | December 2, 2020 | |
This is version 106 of the entry and version 1 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Prokaryotic Protein Annotation Program |
Miscellaneousi
Keywords - Technical termi
Reference proteomeDocuments
- PATHWAY comments
Index of metabolic and biosynthesis pathways - SIMILARITY comments
Index of protein domains and families