ID   HSLU_CERS5              Reviewed;         433 AA.
AC   A4WWS0;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   29-MAY-2007, sequence version 1.
DT   03-AUG-2022, entry version 92.
DE   RecName: Full=ATP-dependent protease ATPase subunit HslU {ECO:0000255|HAMAP-Rule:MF_00249};
DE   AltName: Full=Unfoldase HslU {ECO:0000255|HAMAP-Rule:MF_00249};
GN   Name=hslU {ECO:0000255|HAMAP-Rule:MF_00249};
GN   OrderedLocusNames=Rsph17025_2948;
OS   Cereibacter sphaeroides (strain ATCC 17025 / ATH 2.4.3) (Rhodobacter
OS   sphaeroides).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Rhodobacterales;
OC   Rhodobacteraceae; Cereibacter.
OX   NCBI_TaxID=349102;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 17025 / ATH 2.4.3;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C.,
RA   Glavina del Rio T., Hammon N., Israni S., Dalin E., Tice H., Pitluck S.,
RA   Chertkov O., Brettin T., Bruce D., Han C., Schmutz J., Larimer F., Land M.,
RA   Hauser L., Kyrpides N., Kim E., Richardson P., Mackenzie C., Choudhary M.,
RA   Donohue T.J., Kaplan S.;
RT   "Complete sequence of chromosome of Rhodobacter sphaeroides ATCC 17025.";
RL   Submitted (APR-2007) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: ATPase subunit of a proteasome-like degradation complex; this
CC       subunit has chaperone activity. The binding of ATP and its subsequent
CC       hydrolysis by HslU are essential for unfolding of protein substrates
CC       subsequently hydrolyzed by HslV. HslU recognizes the N-terminal part of
CC       its protein substrates and unfolds these before they are guided to HslV
CC       for hydrolysis. {ECO:0000255|HAMAP-Rule:MF_00249}.
CC   -!- SUBUNIT: A double ring-shaped homohexamer of HslV is capped on each
CC       side by a ring-shaped HslU homohexamer. The assembly of the HslU/HslV
CC       complex is dependent on binding of ATP. {ECO:0000255|HAMAP-
CC       Rule:MF_00249}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00249}.
CC   -!- SIMILARITY: Belongs to the ClpX chaperone family. HslU subfamily.
CC       {ECO:0000255|HAMAP-Rule:MF_00249}.
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DR   EMBL; CP000661; ABP71834.1; -; Genomic_DNA.
DR   AlphaFoldDB; A4WWS0; -.
DR   SMR; A4WWS0; -.
DR   STRING; 349102.Rsph17025_2948; -.
DR   EnsemblBacteria; ABP71834; ABP71834; Rsph17025_2948.
DR   KEGG; rsq:Rsph17025_2948; -.
DR   eggNOG; COG1220; Bacteria.
DR   HOGENOM; CLU_033123_0_0_5; -.
DR   OMA; KYGMIKT; -.
DR   OrthoDB; 718259at2; -.
DR   BioCyc; RSPH349102:G1G8M-3048-MON; -.
DR   GO; GO:0009376; C:HslUV protease complex; IEA:UniProtKB-UniRule.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0016887; F:ATP hydrolysis activity; IEA:InterPro.
DR   GO; GO:0008233; F:peptidase activity; IEA:InterPro.
DR   GO; GO:0036402; F:proteasome-activating activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0043335; P:protein unfolding; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.40.50.300; -; 2.
DR   HAMAP; MF_00249; HslU; 1.
DR   InterPro; IPR003593; AAA+_ATPase.
DR   InterPro; IPR003959; ATPase_AAA_core.
DR   InterPro; IPR011704; ATPase_dyneun-rel_AAA.
DR   InterPro; IPR019489; Clp_ATPase_C.
DR   InterPro; IPR004491; HslU.
DR   InterPro; IPR027417; P-loop_NTPase.
DR   PANTHER; PTHR48102:SF3; PTHR48102:SF3; 1.
DR   Pfam; PF07724; AAA_2; 1.
DR   Pfam; PF07728; AAA_5; 1.
DR   SMART; SM00382; AAA; 1.
DR   SMART; SM01086; ClpB_D2-small; 1.
DR   SUPFAM; SSF52540; SSF52540; 1.
DR   TIGRFAMs; TIGR00390; hslU; 1.
PE   3: Inferred from homology;
KW   ATP-binding; Chaperone; Cytoplasm; Nucleotide-binding; Stress response.
FT   CHAIN           1..433
FT                   /note="ATP-dependent protease ATPase subunit HslU"
FT                   /id="PRO_1000012793"
FT   BINDING         18
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00249"
FT   BINDING         60..65
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00249"
FT   BINDING         246
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00249"
FT   BINDING         311
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00249"
FT   BINDING         383
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00249"
SQ   SEQUENCE   433 AA;  48396 MW;  F37E57B6F290B8E3 CRC64;
     MTDLTPREIV SELDRFIIGQ KDAKRAVAVA LRNRWRRKQL SDDIRDEVYP KNILMIGPTG
     VGKTEISRRL ARLAKAPFLK VEATKFTEVG YVGRDVDSII RDLVDAAIVE TRARMREDVK
     SRAVKAAEDR VIEAIAGRDA REQTREMFRG KLKRGELDAT VIEVEVADTS NPMQMLDPTG
     QGQMGMMNLG EIFGKAFGGR TTRRKMTVAE SHDILMNEEA DKLLDDEVVK ATALEAVQEN
     GIVFIDEIDK VCARSDMRGA DVSREGVQRD LLPLIEGTTV STKYGPVKTD HILFIASGAF
     HIAKPSDLLP ELQGRLPIRV ELRALTEEDF VRILSETDNA LTRQYKALMK TEKVGITFTE
     EGIKALASIA AEVNRSVENI GARRLYTVME RVFEELSFHA PDRSGEEVTV DAAYVEKNLG
     ELARSTDLSR YVL