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HSLU_BUCAP
ID   HSLU_BUCAP              Reviewed;         443 AA.
AC   Q9Z617;
DT   30-MAY-2000, integrated into UniProtKB/Swiss-Prot.
DT   30-AUG-2002, sequence version 2.
DT   03-AUG-2022, entry version 126.
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=BUsg_558;
OS   Buchnera aphidicola subsp. Schizaphis graminum (strain Sg).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Erwiniaceae; Buchnera.
OX   NCBI_TaxID=198804;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Sg;
RX   PubMed=12089438; DOI=10.1126/science.1071278;
RA   Tamas I., Klasson L., Canbaeck B., Naeslund A.K., Eriksson A.-S.,
RA   Wernegreen J.J., Sandstroem J.P., Moran N.A., Andersson S.G.E.;
RT   "50 million years of genomic stasis in endosymbiotic bacteria.";
RL   Science 296:2376-2379(2002).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA] OF 167-443.
RA   Clark M.A., Baumann P., Moran M.A.;
RT   "Buchnera plasmid-associated trpEG probably originated from a chromosomal
RT   location between hslU and fpr.";
RL   Submitted (NOV-1998) 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; AE013218; AAM68096.1; -; Genomic_DNA.
DR   EMBL; AF108665; AAD19633.1; -; Genomic_DNA.
DR   RefSeq; WP_011054062.1; NC_004061.1.
DR   AlphaFoldDB; Q9Z617; -.
DR   SMR; Q9Z617; -.
DR   STRING; 198804.BUsg_558; -.
DR   EnsemblBacteria; AAM68096; AAM68096; BUsg_558.
DR   KEGG; bas:BUsg_558; -.
DR   eggNOG; COG1220; Bacteria.
DR   HOGENOM; CLU_033123_0_0_6; -.
DR   OMA; KYGMIKT; -.
DR   OrthoDB; 718259at2; -.
DR   Proteomes; UP000000416; 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: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   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..443
FT                   /note="ATP-dependent protease ATPase subunit HslU"
FT                   /id="PRO_0000160487"
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         256
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00249"
FT   BINDING         321
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00249"
FT   BINDING         393
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00249"
SQ   SEQUENCE   443 AA;  50030 MW;  914E269263FB8DB1 CRC64;
     MSEMTPPQIV SELNKFIIGQ EQAKKAVAIA LRNRWRRMQL NNELRHEITP KNILMIGPTG
     VGKTEIARRL AKLANSPFIK VEATKFTEVG YVGKEVDSII RDLTDAAIKM IRVKNIEKNK
     LRVEEIVEER ILDVLVPRPK NNWTENEKNE SLLNTLQVFR KKLREGILDE KEIEINVLAS
     TMGVEIMAPP GMEELTSQLQ SLFQNLGGHK KNTRRLKIKD AVLLLKEEEA AKLINQEEIK
     KEAINAVEQN GIVFVDEIDK ICKRRDSSGP DVSREGVQRD LLPLVEGCTV STKYGMVKTD
     HILFIASGAF QTSTPSDLIP ELQGRLPIKV ELQPLTINDF EKILTEPTAS ITAQYKALMK
     TEGVCINFTK EGIRNIAEAA WKVNESMENI GARRLHTILE KLMEDISFNA CDNVGKTIEI
     NSEYVGKHLD QLISNEDLGR FIL
 
 
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