DNAJ_BRECH
ID DNAJ_BRECH Reviewed; 375 AA.
AC Q9LCQ4;
DT 15-NOV-2002, integrated into UniProtKB/Swiss-Prot.
DT 01-OCT-2000, sequence version 1.
DT 03-AUG-2022, entry version 92.
DE RecName: Full=Chaperone protein DnaJ {ECO:0000255|HAMAP-Rule:MF_01152};
GN Name=dnaJ {ECO:0000255|HAMAP-Rule:MF_01152};
OS Brevibacillus choshinensis.
OC Bacteria; Firmicutes; Bacilli; Bacillales; Paenibacillaceae; Brevibacillus.
OX NCBI_TaxID=54911;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC STRAIN=HPD31;
RX PubMed=9748507; DOI=10.1016/s0167-4838(98)00108-3;
RA Tokunaga H., Yamakawa M., Mizukami M., Takagi H., Tokunaga M.;
RT "Molecular cloning of the dnaK locus, and purification and characterization
RT of a DnaK protein from Bacillus brevis HPD31.";
RL Biochim. Biophys. Acta 1387:65-79(1998).
CC -!- FUNCTION: Participates actively in the response to hyperosmotic and
CC heat shock by preventing the aggregation of stress-denatured proteins
CC and by disaggregating proteins, also in an autonomous, DnaK-independent
CC fashion. Unfolded proteins bind initially to DnaJ; upon interaction
CC with the DnaJ-bound protein, DnaK hydrolyzes its bound ATP, resulting
CC in the formation of a stable complex. GrpE releases ADP from DnaK; ATP
CC binding to DnaK triggers the release of the substrate protein, thus
CC completing the reaction cycle. Several rounds of ATP-dependent
CC interactions between DnaJ, DnaK and GrpE are required for fully
CC efficient folding. Also involved, together with DnaK and GrpE, in the
CC DNA replication of plasmids through activation of initiation proteins.
CC {ECO:0000255|HAMAP-Rule:MF_01152}.
CC -!- COFACTOR:
CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01152};
CC Note=Binds 2 Zn(2+) ions per monomer. {ECO:0000255|HAMAP-
CC Rule:MF_01152};
CC -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_01152}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01152}.
CC -!- DOMAIN: The J domain is necessary and sufficient to stimulate DnaK
CC ATPase activity. Zinc center 1 plays an important role in the
CC autonomous, DnaK-independent chaperone activity of DnaJ. Zinc center 2
CC is essential for interaction with DnaK and for DnaJ activity.
CC {ECO:0000255|HAMAP-Rule:MF_01152}.
CC -!- SIMILARITY: Belongs to the DnaJ family. {ECO:0000255|HAMAP-
CC Rule:MF_01152}.
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DR EMBL; AB009842; BAA90474.1; -; Genomic_DNA.
DR AlphaFoldDB; Q9LCQ4; -.
DR SMR; Q9LCQ4; -.
DR STRING; 54911.AN963_03940; -.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0005524; F:ATP binding; IEA:InterPro.
DR GO; GO:0031072; F:heat shock protein binding; IEA:InterPro.
DR GO; GO:0051082; F:unfolded protein binding; IEA:UniProtKB-UniRule.
DR GO; GO:0008270; F:zinc ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0006260; P:DNA replication; IEA:UniProtKB-KW.
DR GO; GO:0006457; P:protein folding; IEA:InterPro.
DR GO; GO:0009408; P:response to heat; IEA:InterPro.
DR CDD; cd06257; DnaJ; 1.
DR CDD; cd10719; DnaJ_zf; 1.
DR Gene3D; 1.10.287.110; -; 1.
DR HAMAP; MF_01152; DnaJ; 1.
DR InterPro; IPR012724; DnaJ.
DR InterPro; IPR002939; DnaJ_C.
DR InterPro; IPR001623; DnaJ_domain.
DR InterPro; IPR008971; HSP40/DnaJ_pept-bd.
DR InterPro; IPR001305; HSP_DnaJ_Cys-rich_dom.
DR InterPro; IPR036410; HSP_DnaJ_Cys-rich_dom_sf.
DR InterPro; IPR036869; J_dom_sf.
DR Pfam; PF00226; DnaJ; 1.
DR Pfam; PF01556; DnaJ_C; 1.
DR Pfam; PF00684; DnaJ_CXXCXGXG; 1.
DR PRINTS; PR00625; JDOMAIN.
DR SMART; SM00271; DnaJ; 1.
DR SUPFAM; SSF46565; SSF46565; 1.
DR SUPFAM; SSF49493; SSF49493; 2.
DR SUPFAM; SSF57938; SSF57938; 1.
DR TIGRFAMs; TIGR02349; DnaJ_bact; 1.
DR PROSITE; PS50076; DNAJ_2; 1.
DR PROSITE; PS51188; ZF_CR; 1.
PE 3: Inferred from homology;
KW Chaperone; Cytoplasm; DNA replication; Metal-binding; Repeat;
KW Stress response; Zinc; Zinc-finger.
FT CHAIN 1..375
FT /note="Chaperone protein DnaJ"
FT /id="PRO_0000070739"
FT DOMAIN 4..68
FT /note="J"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01152"
FT REPEAT 142..149
FT /note="CXXCXGXG motif"
FT REPEAT 159..166
FT /note="CXXCXGXG motif"
FT REPEAT 185..192
FT /note="CXXCXGXG motif"
FT REPEAT 199..206
FT /note="CXXCXGXG motif"
FT ZN_FING 129..211
FT /note="CR-type"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01152"
FT REGION 349..375
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT BINDING 142
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01152"
FT BINDING 145
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01152"
FT BINDING 159
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01152"
FT BINDING 162
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01152"
FT BINDING 185
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01152"
FT BINDING 188
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01152"
FT BINDING 199
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01152"
FT BINDING 202
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01152"
SQ SEQUENCE 375 AA; 40958 MW; 9ACB3FF3E4D987BD CRC64;
MKRDYYEVLG VGKGADADEI KKAYRKLARQ YHPDVNKAAD AEEKFKEVKE AYDVLSEPQK
RAQYDRFGHQ DPNQGFGGGG FDASGMGGFG DIFDMFFGGG GRRANPNAPR KGSDLQFGLS
IEFTETVFGK ETDVEIPKEA ECDTCHGSGA KPGTGVETCK TCSGTGQQEV AANTPFGRIV
NRRVCTTCEG KGKVFKEKCS SCRGSGRVKV RRKIHLNIPA GVDDGAQLRV TGEGEPGVNG
GPPGDLYVVL RVKSHEFFER EGNDIYCEVP LTYAQAALGD EIEVPTVDGR VKLKIPSGTQ
TETFFRLRGK GVPHLRGNGR GDQHVKVRVI TPTKLSDKQK ELLRELAELS GEKPGQHGGE
DEGFFEKMKR AFRGE
