ID   HSLU_ACIF2              Reviewed;         440 AA.
AC   B7J8H7;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   10-FEB-2009, sequence version 1.
DT   03-AUG-2022, entry version 72.
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=AFE_2748;
OS   Acidithiobacillus ferrooxidans (strain ATCC 23270 / DSM 14882 / CIP 104768
OS   / NCIMB 8455) (Ferrobacillus ferrooxidans (strain ATCC 23270)).
OC   Bacteria; Proteobacteria; Acidithiobacillia; Acidithiobacillales;
OC   Acidithiobacillaceae; Acidithiobacillus.
OX   NCBI_TaxID=243159;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 23270 / DSM 14882 / CIP 104768 / NCIMB 8455;
RX   PubMed=19077236; DOI=10.1186/1471-2164-9-597;
RA   Valdes J., Pedroso I., Quatrini R., Dodson R.J., Tettelin H., Blake R. II,
RA   Eisen J.A., Holmes D.S.;
RT   "Acidithiobacillus ferrooxidans metabolism: from genome sequence to
RT   industrial applications.";
RL   BMC Genomics 9:597-597(2008).
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; CP001219; ACK79019.1; -; Genomic_DNA.
DR   RefSeq; WP_012537366.1; NC_011761.1.
DR   AlphaFoldDB; B7J8H7; -.
DR   SMR; B7J8H7; -.
DR   STRING; 243159.AFE_2748; -.
DR   PaxDb; B7J8H7; -.
DR   EnsemblBacteria; ACK79019; ACK79019; AFE_2748.
DR   GeneID; 66433701; -.
DR   KEGG; afr:AFE_2748; -.
DR   eggNOG; COG1220; Bacteria.
DR   HOGENOM; CLU_033123_0_0_6; -.
DR   OMA; KYGMIKT; -.
DR   OrthoDB; 718259at2; -.
DR   Proteomes; UP000001362; 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; -; 1.
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; Reference proteome;
KW   Stress response.
FT   CHAIN           1..440
FT                   /note="ATP-dependent protease ATPase subunit HslU"
FT                   /id="PRO_1000189689"
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         252
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00249"
FT   BINDING         318
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00249"
FT   BINDING         390
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00249"
SQ   SEQUENCE   440 AA;  48864 MW;  B0F696F0B3BD6B85 CRC64;
     MSEMTPREIV QELDKYIIGQ SEAKRAVAIA LRNRWRRGQV PPPLHQEITP KNILMIGPTG
     VGKTEIARRL AQLANAPFIK VEATKFTEVG YVGKDVESII RDLTETAVDM IRNERQVALR
     QRAEELAEER ILDILIPGPR DSSVPRSDEG TRQKFRKMLR EGKLDAQEIE IEVSAPKGGV
     EIMAPAGMEE MTNQLREMFS NMAPGKTSTR RVTVSEAQRL LTDDEAAKLV NEEEVRALAL
     ERVQSGGIVF IDEIDKVAVR SGTQQGSDVS REGVQRDLLP LVEGSNVSTR YGVVKTDHIL
     FIASGAFHLS KPSDLIPELQ GRLPIRVELE ALSAADLVRI LQEPENALVR QYGALLASDG
     LALHFTQDGV QRIAEIAQQV NERVENIGAR RLHTVMERLL EEVAFVAPDG STTALEVDAA
     YVDSRLKDLA QDEDLSRYIL