UniProtKB - A6VNL0 (PURR_ACTSZ)
Protein
HTH-type transcriptional repressor PurR
Gene
purR
Organism
Actinobacillus succinogenes (strain ATCC 55618 / DSM 22257 / 130Z)
Status
Functioni
Is the main repressor of the genes involved in the de novo synthesis of purine nucleotides, regulating purB, purC, purEK, purF, purHD, purL, purMN and guaBA expression. PurR is allosterically activated to bind its cognate DNA by binding the purine corepressors, hypoxanthine or guanine, thereby effecting transcription repression.UniRule annotation
Pathwayi: purine nucleotide biosynthesis
This protein regulates the pathway purine nucleotide biosynthesis, which is part of Purine metabolism.View all proteins of this organism that are known to be involved in the pathway purine nucleotide biosynthesis and in Purine metabolism.
Sites
| Feature key | Position(s) | DescriptionActions | Graphical view | Length |
|---|---|---|---|---|
| Binding sitei | 73 | CorepressorUniRule annotation | 1 | |
| Binding sitei | 189 | CorepressorUniRule annotation | 1 | |
| Binding sitei | 191 | CorepressorUniRule annotation | 1 | |
| Binding sitei | 220 | CorepressorUniRule annotation | 1 | |
| Binding sitei | 274 | CorepressorUniRule annotation | 1 |
Regions
| Feature key | Position(s) | DescriptionActions | Graphical view | Length |
|---|---|---|---|---|
| DNA bindingi | 4 – 23 | H-T-H motifUniRule annotationAdd BLAST | 20 | |
| DNA bindingi | 48 – 56 | UniRule annotation | 9 |
GO - Molecular functioni
- DNA binding Source: UniProtKB-KW
GO - Biological processi
- negative regulation of transcription, DNA-templated Source: UniProtKB-UniRule
- purine nucleotide biosynthetic process Source: UniProtKB-UniPathway
Keywordsi
| Molecular function | DNA-binding, Repressor |
| Biological process | Purine biosynthesis, Transcription, Transcription regulation |
Enzyme and pathway databases
| BioCyci | ASUC339671:G1G9D-1263-MONOMER |
| UniPathwayi | UPA00488 |
Names & Taxonomyi
| Protein namesi | Recommended name: HTH-type transcriptional repressor PurRUniRule annotationAlternative name(s): Pur regulon repressorUniRule annotation Purine nucleotide synthesis repressorUniRule annotation |
| Gene namesi | Name:purRUniRule annotation Ordered Locus Names:Asuc_1193 |
| Organismi | Actinobacillus succinogenes (strain ATCC 55618 / DSM 22257 / 130Z) |
| Taxonomic identifieri | 339671 [NCBI] |
| Taxonomic lineagei | Bacteria › Proteobacteria › Gammaproteobacteria › Pasteurellales › Pasteurellaceae › Actinobacillus › |
| Proteomesi |
|
PTM / Processingi
Molecule processing
| Feature key | Position(s) | DescriptionActions | Graphical view | Length |
|---|---|---|---|---|
| ChainiPRO_1000085866 | 1 – 336 | HTH-type transcriptional repressor PurRAdd BLAST | 336 |
Interactioni
Subunit structurei
Homodimer.
UniRule annotationProtein-protein interaction databases
| STRINGi | 339671.Asuc_1193 |
Family & Domainsi
Domains and Repeats
| Feature key | Position(s) | DescriptionActions | Graphical view | Length |
|---|---|---|---|---|
| Domaini | 2 – 56 | HTH lacI-typeUniRule annotationAdd BLAST | 55 |
Domaini
Consists of two structural and functional domains: an N-terminal DNA-binding domain, approximately the first 60 residues, and a larger C-terminal domain, approximately 280 residues, which imparts the function of corepressor binding and oligomerization.UniRule annotation
Phylogenomic databases
| eggNOGi | COG1609, Bacteria |
| HOGENOMi | CLU_037628_6_2_6 |
| KOi | K03604 |
| OMAi | NMEMLAN |
| OrthoDBi | 1796334at2 |
Family and domain databases
| CDDi | cd01392, HTH_LacI, 1 hit |
| Gene3Di | 1.10.260.40, 1 hit |
| HAMAPi | MF_01277, HTH_type_PurR, 1 hit |
| InterProi | View protein in InterPro IPR000843, HTH_LacI IPR010982, Lambda_DNA-bd_dom_sf IPR028082, Peripla_BP_I IPR023588, Tscrpt_reg_HTH_PurR |
| Pfami | View protein in Pfam PF00356, LacI, 1 hit |
| PRINTSi | PR00036, HTHLACI |
| SMARTi | View protein in SMART SM00354, HTH_LACI, 1 hit |
| SUPFAMi | SSF47413, SSF47413, 1 hit SSF53822, SSF53822, 1 hit |
| PROSITEi | View protein in PROSITE PS00356, HTH_LACI_1, 1 hit PS50932, HTH_LACI_2, 1 hit |
Sequencei
Sequence statusi: Complete.
A6VNL0-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MATIKDVAKL AGVSTTTVSH VINETRHVAE ETKKIVLNAI EQLHYSPSAV
60 70 80 90 100
ARSLKVNTTK SIGMIVTTSE APYFAEIIHA VEDHCYRQGY SLFLCNTQNN
110 120 130 140 150
PEKIKNHLEM LAKKRVDGIL VMCSEYTADS LDLMKSFSDL PMVVMDWGPV
160 170 180 190 200
NPNTDRILDN SFEGGYLAGK HLVDNGHKEI AYLSAELKKT TARKRYEGFL
210 220 230 240 250
KALHEAGLEM NPDWLLEGSF EPEDGYECMN RLLAQEFRPT AIFCCNDVMA
260 270 280 290 300
LGAISAITEK GFRVPEDFSV IGYDNVHISR FSAPPLTTIH QSKARLGERA
310 320 330
LQLLFERIQD KTAKRETIEI HPELVIRKSV KNLNRH
Sequence databases
| Select the link destinations: EMBLi GenBanki DDBJi Links Updated | CP000746 Genomic DNA Translation: ABR74557.1 |
| RefSeqi | WP_012072934.1, NC_009655.1 |
Genome annotation databases
| EnsemblBacteriai | ABR74557; ABR74557; Asuc_1193 |
| KEGGi | asu:Asuc_1193 |
Similar proteinsi
Cross-referencesi
Sequence databases
| Select the link destinations: EMBLi GenBanki DDBJi Links Updated | CP000746 Genomic DNA Translation: ABR74557.1 |
| RefSeqi | WP_012072934.1, NC_009655.1 |
3D structure databases
| SMRi | A6VNL0 |
| ModBasei | Search... |
Protein-protein interaction databases
| STRINGi | 339671.Asuc_1193 |
Genome annotation databases
| EnsemblBacteriai | ABR74557; ABR74557; Asuc_1193 |
| KEGGi | asu:Asuc_1193 |
Phylogenomic databases
| eggNOGi | COG1609, Bacteria |
| HOGENOMi | CLU_037628_6_2_6 |
| KOi | K03604 |
| OMAi | NMEMLAN |
| OrthoDBi | 1796334at2 |
Enzyme and pathway databases
| UniPathwayi | UPA00488 |
| BioCyci | ASUC339671:G1G9D-1263-MONOMER |
Family and domain databases
| CDDi | cd01392, HTH_LacI, 1 hit |
| Gene3Di | 1.10.260.40, 1 hit |
| HAMAPi | MF_01277, HTH_type_PurR, 1 hit |
| InterProi | View protein in InterPro IPR000843, HTH_LacI IPR010982, Lambda_DNA-bd_dom_sf IPR028082, Peripla_BP_I IPR023588, Tscrpt_reg_HTH_PurR |
| Pfami | View protein in Pfam PF00356, LacI, 1 hit |
| PRINTSi | PR00036, HTHLACI |
| SMARTi | View protein in SMART SM00354, HTH_LACI, 1 hit |
| SUPFAMi | SSF47413, SSF47413, 1 hit SSF53822, SSF53822, 1 hit |
| PROSITEi | View protein in PROSITE PS00356, HTH_LACI_1, 1 hit PS50932, HTH_LACI_2, 1 hit |
| ProtoNeti | Search... |
| MobiDBi | Search... |
Entry informationi
| Entry namei | PURR_ACTSZ | |
| Accessioni | A6VNL0Primary (citable) accession number: A6VNL0 | |
| Entry historyi | Integrated into UniProtKB/Swiss-Prot: | May 20, 2008 |
| Last sequence update: | August 21, 2007 | |
| Last modified: | August 12, 2020 | |
| This is version 91 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




