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UniProtKB - A1K2I6 (HSLU_AZOSB)
Protein
ATP-dependent protease ATPase subunit HslU
Gene
hslU
Organism
Azoarcus sp. (strain BH72)
Status
Functioni
ATPase subunit of a proteasome-like degradation complex; this subunit has chaperone activity. The binding of ATP and its subsequent hydrolysis by HslU are essential for unfolding of protein substrates subsequently hydrolyzed by HslV. HslU recognizes the N-terminal part of its protein substrates and unfolds these before they are guided to HslV for hydrolysis.
UniRule annotationSites
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Binding sitei | 18 | ATP; via amide nitrogen and carbonyl oxygenUniRule annotation | 1 | |
Binding sitei | 256 | ATPUniRule annotation | 1 | |
Binding sitei | 321 | ATPUniRule annotation | 1 | |
Binding sitei | 393 | ATPUniRule annotation | 1 |
Regions
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Nucleotide bindingi | 60 – 65 | ATPUniRule annotation | 6 |
GO - Molecular functioni
- ATP binding Source: UniProtKB-UniRule
- ATP hydrolysis activity Source: InterPro
- peptidase activity Source: InterPro
- proteasome-activating activity Source: UniProtKB-UniRule
GO - Biological processi
- protein unfolding Source: UniProtKB-UniRule
Keywordsi
Molecular function | Chaperone |
Ligand | ATP-binding, Nucleotide-binding |
Names & Taxonomyi
Protein namesi | Recommended name: ATP-dependent protease ATPase subunit HslUUniRule annotationAlternative name(s): Unfoldase HslUUniRule annotation |
Gene namesi | Name:hslUUniRule annotation Ordered Locus Names:azo0424 |
Organismi | Azoarcus sp. (strain BH72) |
Taxonomic identifieri | 418699 [NCBI] |
Taxonomic lineagei | Bacteria › Proteobacteria › Betaproteobacteria › Rhodocyclales › Zoogloeaceae › Azoarcus |
Proteomesi |
|
Subcellular locationi
Cytoplasm and Cytosol
- Cytoplasm UniRule annotation
Cytosol
- HslUV protease complex Source: UniProtKB-UniRule
Keywords - Cellular componenti
CytoplasmPTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
ChainiPRO_1000012699 | 1 – 443 | ATP-dependent protease ATPase subunit HslUAdd BLAST | 443 |
Interactioni
Subunit structurei
A double ring-shaped homohexamer of HslV is capped on each side by a ring-shaped HslU homohexamer. The assembly of the HslU/HslV complex is dependent on binding of ATP.
UniRule annotationProtein-protein interaction databases
STRINGi | 62928.azo0424 |
Family & Domainsi
Sequence similaritiesi
Phylogenomic databases
eggNOGi | COG1220, Bacteria |
HOGENOMi | CLU_033123_0_0_4 |
OMAi | KYGMIKT |
OrthoDBi | 718259at2 |
Family and domain databases
Gene3Di | 3.40.50.300, 2 hits |
HAMAPi | MF_00249, HslU, 1 hit |
InterProi | View protein in InterPro IPR003593, AAA+_ATPase IPR003959, ATPase_AAA_core IPR019489, Clp_ATPase_C IPR004491, HslU IPR027417, P-loop_NTPase |
PANTHERi | PTHR48102:SF3, PTHR48102:SF3, 1 hit |
Pfami | View protein in Pfam PF00004, AAA, 1 hit PF07724, AAA_2, 1 hit |
SMARTi | View protein in SMART SM00382, AAA, 1 hit SM01086, ClpB_D2-small, 1 hit |
SUPFAMi | SSF52540, SSF52540, 1 hit |
TIGRFAMsi | TIGR00390, hslU, 1 hit |
i Sequence
Sequence statusi: Complete.
A1K2I6-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MTQMTPPEIV SELDKHIVGQ ARAKKAVAIA LRNRWRRARI DEPLRSEITP
60 70 80 90 100
KNILMIGPTG VGKTEIARRL ARLANAPFIK VEATKFTEVG YVGRDVDTII
110 120 130 140 150
RDLVEIAIKD GRERAMRVVR DRALDAAEDR VLDVLLPPAR PVGFSEPAQP
160 170 180 190 200
QDSATRQKFR KKLREGELDD KEVEIEVASA PMQAEIFAPP GMEELTQQIQ
210 220 230 240 250
GMFQNLGNSR KKLRKLPIRE ALKLLADEEA ARLINDEEVK TEALRAVEQN
260 270 280 290 300
GIVFLDEVDK IAARADAHGA DVSRQGVQRD LLPLVEGTTI STKYGMIKTD
310 320 330 340 350
HILFIASGAF HLSKPSDLIP ELQGRFPIRV ELESLSVEDF ERILTSTDAC
360 370 380 390 400
LTRQYEALLA TDGVTLSFTP EGIRRLAEIA YQVNEKTENI GARRLYTVME
410 420 430 440
KLLEEVSFEA GKVGVDKLTV DAAYVDARLE VLAQREDLAR YVL
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AM406670 Genomic DNA Translation: CAL93041.1 |
RefSeqi | WP_011764159.1, NC_008702.1 |
Genome annotation databases
EnsemblBacteriai | CAL93041; CAL93041; azo0424 |
KEGGi | azo:azo0424 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AM406670 Genomic DNA Translation: CAL93041.1 |
RefSeqi | WP_011764159.1, NC_008702.1 |
3D structure databases
AlphaFoldDBi | A1K2I6 |
SMRi | A1K2I6 |
ModBasei | Search... |
Protein-protein interaction databases
STRINGi | 62928.azo0424 |
Genome annotation databases
EnsemblBacteriai | CAL93041; CAL93041; azo0424 |
KEGGi | azo:azo0424 |
Phylogenomic databases
eggNOGi | COG1220, Bacteria |
HOGENOMi | CLU_033123_0_0_4 |
OMAi | KYGMIKT |
OrthoDBi | 718259at2 |
Family and domain databases
Gene3Di | 3.40.50.300, 2 hits |
HAMAPi | MF_00249, HslU, 1 hit |
InterProi | View protein in InterPro IPR003593, AAA+_ATPase IPR003959, ATPase_AAA_core IPR019489, Clp_ATPase_C IPR004491, HslU IPR027417, P-loop_NTPase |
PANTHERi | PTHR48102:SF3, PTHR48102:SF3, 1 hit |
Pfami | View protein in Pfam PF00004, AAA, 1 hit PF07724, AAA_2, 1 hit |
SMARTi | View protein in SMART SM00382, AAA, 1 hit SM01086, ClpB_D2-small, 1 hit |
SUPFAMi | SSF52540, SSF52540, 1 hit |
TIGRFAMsi | TIGR00390, hslU, 1 hit |
MobiDBi | Search... |
Entry informationi
Entry namei | HSLU_AZOSB | |
Accessioni | A1K2I6Primary (citable) accession number: A1K2I6 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | January 15, 2008 |
Last sequence update: | February 6, 2007 | |
Last modified: | May 25, 2022 | |
This is version 88 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
- SIMILARITY comments
Index of protein domains and families