DNAJ2_AQUAE
ID DNAJ2_AQUAE Reviewed; 376 AA.
AC O66921;
DT 01-DEC-2000, integrated into UniProtKB/Swiss-Prot.
DT 01-AUG-1998, sequence version 1.
DT 03-AUG-2022, entry version 135.
DE RecName: Full=Chaperone protein DnaJ 2 {ECO:0000255|HAMAP-Rule:MF_01152};
GN Name=dnaJ2 {ECO:0000255|HAMAP-Rule:MF_01152}; OrderedLocusNames=aq_703;
OS Aquifex aeolicus (strain VF5).
OC Bacteria; Aquificae; Aquificales; Aquificaceae; Aquifex.
OX NCBI_TaxID=224324;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=VF5;
RX PubMed=9537320; DOI=10.1038/32831;
RA Deckert G., Warren P.V., Gaasterland T., Young W.G., Lenox A.L.,
RA Graham D.E., Overbeek R., Snead M.A., Keller M., Aujay M., Huber R.,
RA Feldman R.A., Short J.M., Olsen G.J., Swanson R.V.;
RT "The complete genome of the hyperthermophilic bacterium Aquifex aeolicus.";
RL Nature 392:353-358(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; AE000657; AAC06881.1; -; Genomic_DNA.
DR PIR; E70361; E70361.
DR RefSeq; NP_213481.1; NC_000918.1.
DR RefSeq; WP_010880419.1; NC_000918.1.
DR AlphaFoldDB; O66921; -.
DR SMR; O66921; -.
DR STRING; 224324.aq_703; -.
DR EnsemblBacteria; AAC06881; AAC06881; aq_703.
DR KEGG; aae:aq_703; -.
DR PATRIC; fig|224324.8.peg.563; -.
DR eggNOG; COG0484; Bacteria.
DR HOGENOM; CLU_017633_0_7_0; -.
DR InParanoid; O66921; -.
DR OMA; WDAGFEF; -.
DR OrthoDB; 1738789at2; -.
DR Proteomes; UP000000798; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IBA:GO_Central.
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; IBA:GO_Central.
DR GO; GO:0008270; F:zinc ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0051085; P:chaperone cofactor-dependent protein refolding; IBA:GO_Central.
DR GO; GO:0006260; P:DNA replication; IEA:UniProtKB-KW.
DR GO; GO:0042026; P:protein refolding; IBA:GO_Central.
DR GO; GO:0009408; P:response to heat; IEA:InterPro.
DR CDD; cd06257; DnaJ; 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; IPR018253; DnaJ_domain_CS.
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; PS00636; DNAJ_1; 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; Reference proteome;
KW Repeat; Stress response; Zinc; Zinc-finger.
FT CHAIN 1..376
FT /note="Chaperone protein DnaJ 2"
FT /id="PRO_0000070712"
FT DOMAIN 8..72
FT /note="J"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01152"
FT REPEAT 156..163
FT /note="CXXCXGXG motif"
FT REPEAT 172..179
FT /note="CXXCXGXG motif"
FT REPEAT 194..201
FT /note="CXXCXGXG motif"
FT REPEAT 207..214
FT /note="CXXCXGXG motif"
FT ZN_FING 143..219
FT /note="CR-type"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01152"
FT BINDING 156
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="1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01152"
FT BINDING 172
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01152"
FT BINDING 175
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01152"
FT BINDING 194
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01152"
FT BINDING 197
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01152"
FT BINDING 207
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01152"
FT BINDING 210
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01152"
SQ SEQUENCE 376 AA; 41963 MW; 9C8FBFB29A8A016D CRC64;
MASSTKKDYY EILGVPRNAS QEEIKKAYRR LVRKYHPDIC KKPECEEKFK EINEAYQVLS
DPEKRKLYDM YGHAAFEGAG AQQRVETTEI PPIEEILREF FDFDIGSIFE RATGRRRARR
RRSVKGEDIV VPVEITLEEA FKGTTVPIEV EREVPCSACG GTGYDESKSR TCPTCGGRGE
TVQGNWFFQV RQTCPTCGGE GVIYENCHAC TGRGYGLVKE TIKVKIPPGV RDGSKLVVEG
KGHAGRYGGP PGDLYIIVKV KPHKIFERKG DDLYVDVNIT YPEAVLGTEV EVPTLDGEKV
KVKIPPGTKE GELIKVPGKG MPRLKGSGRG DLYVRVHIDV PKIGVLSKLL GDGKKVEELL
KQLQEVLPKP ERIVER