UniProtKB - A0A0K1TPY7 (BZAA_EUBLI)
Protein
5-hydroxybenzimidazole synthase BzaA
Gene
bzaA
Organism
Eubacterium limosum
Status
Functioni
Together with BzaB, catalyzes the conversion of aminoimidazole ribotide (AIR) to 5-hydroxybenzimidazole (5-HBI) in a radical S-adenosyl-L-methionine (SAM)-dependent reaction. Is thus involved in the anaerobic biosynthesis of dimethylbenzimidazole (DMB), the lower axial ligand of vitamin B12 (cobalamin). Requires BzaB for catalytic activity, as BzaA alone displays no activity.1 Publication
Catalytic activityi
- 5-amino-1-(5-phospho-β-D-ribosyl)imidazole + AH2 + S-adenosyl-L-methionine = 5'-deoxyadenosine + 5-hydroxybenzimidazole + A + formate + 2 H+ + L-methionine + NH4+ + phosphateBy similarity1 PublicationEC:4.1.99.23By similarity1 Publication
Cofactori
[4Fe-4S] clusterBy similarityNote: Binds 1 [4Fe-4S] cluster per subunit. The cluster is coordinated with 3 cysteines and an exchangeable S-adenosyl-L-methionine.By similarity
: adenosylcobalamin biosynthesis Pathwayi
This protein is involved in the pathway adenosylcobalamin biosynthesis, which is part of Cofactor biosynthesis.1 PublicationView all proteins of this organism that are known to be involved in the pathway adenosylcobalamin biosynthesis and in Cofactor biosynthesis.
GO - Molecular functioni
- 4 iron, 4 sulfur cluster binding Source: UniProtKB-KW
- lyase activity Source: UniProtKB-KW
- metal ion binding Source: UniProtKB-KW
GO - Biological processi
- cobalamin biosynthetic process Source: UniProtKB-UniPathway
- thiamine biosynthetic process Source: InterPro
Keywordsi
Molecular function | Lyase |
Biological process | Cobalamin biosynthesis |
Ligand | 4Fe-4S, Iron, Iron-sulfur, Metal-binding, S-adenosyl-L-methionine, Zinc |
Enzyme and pathway databases
UniPathwayi | UPA00148 |
Names & Taxonomyi
Protein namesi | Recommended name: 5-hydroxybenzimidazole synthase BzaA1 Publication (EC:4.1.99.23By similarity1 Publication)Short name: 5-OHBza synthase1 Publication Short name: HBI synthase |
Gene namesi | Name:bzaA1 PublicationImported ORF Names:SAMN04515624_11454Imported |
Organismi | Eubacterium limosum |
Taxonomic identifieri | 1736 [NCBI] |
Taxonomic lineagei | Bacteria › Firmicutes › Clostridia › Clostridiales › Eubacteriaceae › Eubacterium |
Proteomesi |
|
PTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
ChainiPRO_0000441745 | 1 – 427 | 5-hydroxybenzimidazole synthase BzaAAdd BLAST | 427 |
Family & Domainsi
Sequence similaritiesi
Family and domain databases
Gene3Di | 3.20.20.540, 1 hit |
InterProi | View protein in InterPro IPR038521, ThiC/Bza_sf IPR002817, ThiC/BzaA/B |
PANTHERi | PTHR30557, PTHR30557, 1 hit |
Pfami | View protein in Pfam PF01964, ThiC_Rad_SAM, 1 hit |
SFLDi | SFLDF00407, phosphomethylpyrimidine_syntha, 1 hit |
TIGRFAMsi | TIGR00190, thiC, 1 hit |
i Sequence
Sequence statusi: Complete.
A0A0K1TPY7-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MTLLEKAKCG EITAEMQYVA EKEGVRPEFI CEGVANGDIV ILYSSRENIH
60 70 80 90 100
PVAVGKGLLT KVSASVGMYE EADTVDGEMA KIDAAVKAHA DTIMDLSVRG
110 120 130 140 150
PIEEMREKVL STVDRPVGTL PMYETLSVAE AKYGTALDMT PDDMFDMIEK
160 170 180 190 200
QASQGVAFIA VHPGTTLSVI HRAKDEGRID PLVSYGGSHL IGWMLYNNTE
210 220 230 240 250
NPLYTEFDRL IEICKKYDVV LSFADGMRPG CIADSLDHAQ VEELVILGGL
260 270 280 290 300
VRRAREAGVQ VMVKGPGHVP LDEIATTVQL EKKLCYGAPY FVFGCLPTDA
310 320 330 340 350
AAGYDHITSA IGGAVAAYAG ADFLCYVTPA EHIGMPNVDD VYQGVMASRI
360 370 380 390 400
AAHAGDVAKG HPQAVKWDLD MSVARRAMNW KEQFKLSIDP ETAERVWRER
410 420
STSFTSECTM CGKYCAMKIV EKYLRAE
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | KT347435 Genomic DNA Translation: AKV89410.1 FNJF01000014 Genomic DNA Translation: SDP52039.1 |
RefSeqi | WP_074617801.1, NZ_FNJF01000014.1 |
Genome annotation databases
EnsemblBacteriai | SDP52039; SDP52039; SAMN04515624_11454 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | KT347435 Genomic DNA Translation: AKV89410.1 FNJF01000014 Genomic DNA Translation: SDP52039.1 |
RefSeqi | WP_074617801.1, NZ_FNJF01000014.1 |
3D structure databases
SMRi | A0A0K1TPY7 |
ModBasei | Search... |
Genome annotation databases
EnsemblBacteriai | SDP52039; SDP52039; SAMN04515624_11454 |
Enzyme and pathway databases
UniPathwayi | UPA00148 |
Family and domain databases
Gene3Di | 3.20.20.540, 1 hit |
InterProi | View protein in InterPro IPR038521, ThiC/Bza_sf IPR002817, ThiC/BzaA/B |
PANTHERi | PTHR30557, PTHR30557, 1 hit |
Pfami | View protein in Pfam PF01964, ThiC_Rad_SAM, 1 hit |
SFLDi | SFLDF00407, phosphomethylpyrimidine_syntha, 1 hit |
TIGRFAMsi | TIGR00190, thiC, 1 hit |
ProtoNeti | Search... |
MobiDBi | Search... |
Entry informationi
Entry namei | BZAA_EUBLI | |
Accessioni | A0A0K1TPY7Primary (citable) accession number: A0A0K1TPY7 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | September 27, 2017 |
Last sequence update: | November 11, 2015 | |
Last modified: | April 7, 2021 | |
This is version 25 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
Documents
- PATHWAY comments
Index of metabolic and biosynthesis pathways - SIMILARITY comments
Index of protein domains and families