UniProtKB - P54479 (ZUR_BACSU)
Protein
Zinc-specific metallo-regulatory protein
Gene
zur
Organism
Bacillus subtilis (strain 168)
Status
Functioni
Acts as a negative controlling element, employing Zn2+ as a cofactor to bind the operator of the repressed genes. Required for the zinc-specific repression of two operons implicated in zinc uptake, yciC and ycdHIyceA. Also represses the expression of rpmE2, the gene for ribosomal protein L31B, which is expressed only after the end of exponential growth.3 Publications
Activity regulationi
Sequentially activated from an inactive dimer (Zur2:Zn2) to a partially active asymmetric dimer (Zur2:Zn3), and finally to the fully zinc-loaded active form (Zur2:Zn4). Binds a maximum of 4 Zn2+ ions per dimer.1 Publication
GO - Molecular functioni
- DNA binding Source: GO_Central
- DNA-binding transcription factor activity Source: GO_Central
- DNA-binding transcription repressor activity Source: CollecTF
- transcription regulatory region sequence-specific DNA binding Source: CollecTF
- zinc ion binding Source: GO_Central
GO - Biological processi
- negative regulation of transcription, DNA-templated Source: CollecTF
- regulation of secondary metabolite biosynthetic process Source: GO_Central
Keywordsi
| Molecular function | DNA-binding, Repressor |
| Biological process | Transcription, Transcription regulation |
| Ligand | Metal-binding, Zinc |
Enzyme and pathway databases
| BioCyci | BSUB:BSU25100-MONOMER |
Names & Taxonomyi
| Protein namesi | Recommended name: Zinc-specific metallo-regulatory protein |
| Gene namesi | Name:zur Synonyms:yqfV Ordered Locus Names:BSU25100 |
| Organismi | Bacillus subtilis (strain 168) |
| Taxonomic identifieri | 224308 [NCBI] |
| Taxonomic lineagei | Bacteria › Firmicutes › Bacilli › Bacillales › Bacillaceae › Bacillus › |
| Proteomesi |
|
Subcellular locationi
- Cytoplasm By similarity
GO - Cellular componenti
- cytoplasm Source: UniProtKB-SubCell
- protein-DNA complex Source: CollecTF
Keywords - Cellular componenti
CytoplasmPathology & Biotechi
Mutagenesis
| Feature key | Position(s) | DescriptionActions | Graphical view | Length |
|---|---|---|---|---|
| Mutagenesisi | 70 | E → A: Does not affect repressor activity. 1 Publication | 1 | |
| Mutagenesisi | 84 | C → S: Decrease in repressor activity. 1 Publication | 1 | |
| Mutagenesisi | 89 | H → A: Decrease in repressor activity. 1 Publication | 1 | |
| Mutagenesisi | 90 | H → A: Decrease in repressor activity. 1 Publication | 1 | |
| Mutagenesisi | 91 | H → A: Decrease in repressor activity. 1 Publication | 1 | |
| Mutagenesisi | 92 | H → A: Decrease in repressor activity. 1 Publication | 1 | |
| Mutagenesisi | 95 | C → S: Lack of repressor activity. 1 Publication | 1 | |
| Mutagenesisi | 98 | C → S: Lack of repressor activity. 1 Publication | 1 | |
| Mutagenesisi | 110 | D → A: Does not affect repressor activity. 1 Publication | 1 | |
| Mutagenesisi | 124 | H → A: Strong decrease in repressor activity. 1 Publication | 1 | |
| Mutagenesisi | 132 | C → S: Strong decrease in repressor activity. 1 Publication | 1 | |
| Mutagenesisi | 135 | C → S: Strong decrease in repressor activity. 1 Publication | 1 |
PTM / Processingi
Molecule processing
| Feature key | Position(s) | DescriptionActions | Graphical view | Length |
|---|---|---|---|---|
| ChainiPRO_0000095591 | 1 – 145 | Zinc-specific metallo-regulatory proteinAdd BLAST | 145 |
Proteomic databases
| jPOSTi | P54479 |
| PaxDbi | P54479 |
| PRIDEi | P54479 |
Interactioni
Subunit structurei
Homodimer.
1 PublicationProtein-protein interaction databases
| STRINGi | 224308.BSU25100 |
Family & Domainsi
Compositional bias
| Feature key | Position(s) | DescriptionActions | Graphical view | Length |
|---|---|---|---|---|
| Compositional biasi | 88 – 92 | His-rich | 5 |
Domaini
Contains 3 zinc-binding sites. Site 1 has a structural role and site 2 is the Zn(2+) sensing site. Site 3 residues do not bind metal ions with a physiologically relevant affinity, but contribute to dimer stability.1 Publication
Sequence similaritiesi
Belongs to the Fur family.Curated
Phylogenomic databases
| eggNOGi | COG0735, Bacteria |
| InParanoidi | P54479 |
| OMAi | FEIYGTC |
| PhylomeDBi | P54479 |
Family and domain databases
| CDDi | cd07153, Fur_like, 1 hit |
| Gene3Di | 1.10.10.10, 1 hit 3.30.1490.190, 1 hit |
| InterProi | View protein in InterPro IPR002481, FUR IPR043135, Fur_C IPR036388, WH-like_DNA-bd_sf IPR036390, WH_DNA-bd_sf |
| PANTHERi | PTHR33202, PTHR33202, 1 hit |
| Pfami | View protein in Pfam PF01475, FUR, 1 hit |
| SUPFAMi | SSF46785, SSF46785, 1 hit |
Sequencei
Sequence statusi: Complete.
P54479-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MNVQEALNLL KENGYKYTNK REDMLQLFAD SDRYLTAKNV LSALNDDYPG
60 70 80 90 100
LSFDTIYRNL SLYEELGILE TTELSGEKLF RFKCSFTHHH HHFICLACGK
110 120 130 140
TKEIESCPMD KLCDDLDGYQ VSGHKFEIYG TCPDCTAENQ ENTTA
Experimental Info
| Feature key | Position(s) | DescriptionActions | Graphical view | Length |
|---|---|---|---|---|
| Sequence conflicti | 12 | E → G in BAA12499 (PubMed:8969508).Curated | 1 |
Sequence databases
| Select the link destinations: EMBLi GenBanki DDBJi Links Updated | D84432 Genomic DNA Translation: BAA12499.1 AL009126 Genomic DNA Translation: CAB14440.2 |
| PIRi | H69954 |
| RefSeqi | NP_390389.2, NC_000964.3 WP_004398578.1, NZ_JNCM01000036.1 |
Genome annotation databases
| EnsemblBacteriai | CAB14440; CAB14440; BSU25100 |
| GeneIDi | 937968 |
| KEGGi | bsu:BSU25100 |
| PATRICi | fig|224308.179.peg.2729 |
Similar proteinsi
Cross-referencesi
Sequence databases
| Select the link destinations: EMBLi GenBanki DDBJi Links Updated | D84432 Genomic DNA Translation: BAA12499.1 AL009126 Genomic DNA Translation: CAB14440.2 |
| PIRi | H69954 |
| RefSeqi | NP_390389.2, NC_000964.3 WP_004398578.1, NZ_JNCM01000036.1 |
3D structure databases
| SMRi | P54479 |
| ModBasei | Search... |
Protein-protein interaction databases
| STRINGi | 224308.BSU25100 |
Proteomic databases
| jPOSTi | P54479 |
| PaxDbi | P54479 |
| PRIDEi | P54479 |
Genome annotation databases
| EnsemblBacteriai | CAB14440; CAB14440; BSU25100 |
| GeneIDi | 937968 |
| KEGGi | bsu:BSU25100 |
| PATRICi | fig|224308.179.peg.2729 |
Phylogenomic databases
| eggNOGi | COG0735, Bacteria |
| InParanoidi | P54479 |
| OMAi | FEIYGTC |
| PhylomeDBi | P54479 |
Enzyme and pathway databases
| BioCyci | BSUB:BSU25100-MONOMER |
Gene expression databases
| CollecTFi | EXPREG_00000b30 |
Family and domain databases
| CDDi | cd07153, Fur_like, 1 hit |
| Gene3Di | 1.10.10.10, 1 hit 3.30.1490.190, 1 hit |
| InterProi | View protein in InterPro IPR002481, FUR IPR043135, Fur_C IPR036388, WH-like_DNA-bd_sf IPR036390, WH_DNA-bd_sf |
| PANTHERi | PTHR33202, PTHR33202, 1 hit |
| Pfami | View protein in Pfam PF01475, FUR, 1 hit |
| SUPFAMi | SSF46785, SSF46785, 1 hit |
| ProtoNeti | Search... |
| MobiDBi | Search... |
Entry informationi
| Entry namei | ZUR_BACSU | |
| Accessioni | P54479Primary (citable) accession number: P54479 | |
| Entry historyi | Integrated into UniProtKB/Swiss-Prot: | October 1, 1996 |
| Last sequence update: | July 7, 2009 | |
| Last modified: | February 10, 2021 | |
| This is version 120 of the entry and version 2 of the sequence. See complete history. | ||
| Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
| Annotation program | Prokaryotic Protein Annotation Program | |
Miscellaneousi
Keywords - Technical termi
Reference proteomeDocuments
- SIMILARITY comments
Index of protein domains and families




