ID   HSLU_RICPU              Reviewed;         450 AA.
AC   C4K1X4;
DT   22-SEP-2009, integrated into UniProtKB/Swiss-Prot.
DT   07-JUL-2009, sequence version 1.
DT   03-AUG-2022, entry version 65.
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}; OrderedLocusNames=RPR_04490;
OS   Rickettsia peacockii (strain Rustic).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Rickettsiales;
OC   Rickettsiaceae; Rickettsieae; Rickettsia; spotted fever group.
OX   NCBI_TaxID=562019;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Rustic;
RX   PubMed=20027221; DOI=10.1371/journal.pone.0008361;
RA   Felsheim R.F., Kurtti T.J., Munderloh U.G.;
RT   "Genome sequence of the endosymbiont Rickettsia peacockii and comparison
RT   with virulent Rickettsia rickettsii: identification of virulence factors.";
RL   PLoS ONE 4:E8361-E8361(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; CP001227; ACR47572.1; -; Genomic_DNA.
DR   AlphaFoldDB; C4K1X4; -.
DR   SMR; C4K1X4; -.
DR   EnsemblBacteria; ACR47572; ACR47572; RPR_04490.
DR   KEGG; rpk:RPR_04490; -.
DR   HOGENOM; CLU_033123_0_0_5; -.
DR   OMA; KYGMIKT; -.
DR   Proteomes; UP000005015; Chromosome.
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:0003677; F:DNA binding; 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:0032508; P:DNA duplex unwinding; IEA:InterPro.
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; IPR001208; MCM_dom.
DR   InterPro; IPR027417; P-loop_NTPase.
DR   PANTHER; PTHR48102:SF3; PTHR48102:SF3; 1.
DR   Pfam; PF07724; AAA_2; 1.
DR   Pfam; PF00493; MCM; 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.
FT   CHAIN           1..450
FT                   /note="ATP-dependent protease ATPase subunit HslU"
FT                   /id="PRO_1000204529"
FT   BINDING         29
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00249"
FT   BINDING         71..76
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00249"
FT   BINDING         261
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00249"
FT   BINDING         328
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00249"
FT   BINDING         400
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00249"
SQ   SEQUENCE   450 AA;  49584 MW;  3DE6C962D32DE6E7 CRC64;
     MKATKTTYKK DPMGLTPSQI VNELNRFIVG QEKAKKAVAI ALRNRCRRKR VEGNLRNEIV
     PKNILMIGST GVGKTEIARR LAKLTNSPFY KIEATKFTEV GYVGRDVESI IRDLVEIAVN
     TEKTLAKTKV DIHAREKAIE RILDSLVGKT SSSETREKFK EKILNGELDD TEIEISVADT
     TPVGGGSFEI PGMPGASMGV LNLGDMIGRA LGSSKTKTKK MLVKDAMAII IPEESEKLID
     QEKIIQQAIN LAENDGIVFI DEIDKIASTG SSGAKNAEIS REGVQRDLLP LIEGTTVNTK
     YGPVKTDHIL FIASGAFHIA KPSDLLPELQ GRLPIRVELN SLTKDDMIKI LLEPETSLIK
     QYSALIGTED VRLEFAASAI EKIADYAITV NLEVEDIGAR RLHTILENLL EDISFEASEM
     KGKKITIDDK FVENQLSKII TNLDLAKFVL