ID   HSLU_SULSY              Reviewed;         448 AA.
AC   B2V6B0;
DT   24-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT   01-JUL-2008, sequence version 1.
DT   03-AUG-2022, entry version 82.
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=SYO3AOP1_1585;
OS   Sulfurihydrogenibium sp. (strain YO3AOP1).
OC   Bacteria; Aquificae; Aquificales; Hydrogenothermaceae;
OC   Sulfurihydrogenibium; unclassified Sulfurihydrogenibium.
OX   NCBI_TaxID=436114;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=YO3AOP1;
RX   PubMed=19136599; DOI=10.1128/jb.01645-08;
RA   Reysenbach A.-L., Hamamura N., Podar M., Griffiths E., Ferreira S.,
RA   Hochstein R., Heidelberg J., Johnson J., Mead D., Pohorille A.,
RA   Sarmiento M., Schweighofer K., Seshadri R., Voytek M.A.;
RT   "Complete and draft genome sequences of six members of the Aquificales.";
RL   J. Bacteriol. 191:1992-1993(2009).
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; CP001080; ACD67183.1; -; Genomic_DNA.
DR   RefSeq; WP_012460239.1; NC_010730.1.
DR   AlphaFoldDB; B2V6B0; -.
DR   SMR; B2V6B0; -.
DR   STRING; 436114.SYO3AOP1_1585; -.
DR   PRIDE; B2V6B0; -.
DR   EnsemblBacteria; ACD67183; ACD67183; SYO3AOP1_1585.
DR   KEGG; sul:SYO3AOP1_1585; -.
DR   eggNOG; COG1220; Bacteria.
DR   HOGENOM; CLU_033123_0_0_0; -.
DR   OMA; KYGMIKT; -.
DR   OrthoDB; 718259at2; -.
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; IPR019489; Clp_ATPase_C.
DR   InterPro; IPR004491; HslU.
DR   InterPro; IPR027417; P-loop_NTPase.
DR   PANTHER; PTHR48102:SF3; PTHR48102:SF3; 1.
DR   Pfam; PF00004; AAA; 1.
DR   Pfam; PF07724; AAA_2; 1.
DR   Pfam; PF10431; ClpB_D2-small; 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..448
FT                   /note="ATP-dependent protease ATPase subunit HslU"
FT                   /id="PRO_1000100978"
FT   BINDING         21
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00249"
FT   BINDING         63..68
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00249"
FT   BINDING         260
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00249"
FT   BINDING         326
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00249"
FT   BINDING         398
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00249"
SQ   SEQUENCE   448 AA;  50676 MW;  C4D1021C838A2441 CRC64;
     MEIDKELTPK QIVEELNKYI VGQYEAKKAV AVALRNRWRR QKLPEDLRDE VIPKNILMIG
     PTGVGKTEIA RRLANLVKAP FIKVEATKFT EVGYVGRDVE SIIRELVDVS FKMVKAEKME
     EVREKAKAIA EEKILDYLVP KKPKRYGTLI EEEEESPARE KFREMLKNGQ LDDKVVEIDV
     EEKVSAVVGG VVVPGLEDIE SQLKELFSNL GPSKRKKRRL TVKEALKIIE NEEAEKLIDM
     DEVQTLAVKR AENLGIVFID EIDKVAARGS SKSGPDVSRE GVQRDLLPIV EGTVVSTKYG
     PVKTDHILFI AAGAFHLAKP SDLIPELQGR FPIRVELKAL TKDDFVKILT EPKNALIKQY
     IALMSTEGVE LEFTEDAIQE IAQIAEEVNE RTENIGARRL HTILERIMED YSFNAPDLKG
     QKIVIDSKLV REKLGNVITN EDLTRYIL