ID   GRPE_AQUAE              Reviewed;         182 AA.
AC   O66745;
DT   30-MAY-2000, integrated into UniProtKB/Swiss-Prot.
DT   01-AUG-1998, sequence version 1.
DT   03-AUG-2022, entry version 102.
DE   RecName: Full=Protein GrpE {ECO:0000255|HAMAP-Rule:MF_01151};
DE   AltName: Full=HSP-70 cofactor {ECO:0000255|HAMAP-Rule:MF_01151};
GN   Name=grpE {ECO:0000255|HAMAP-Rule:MF_01151}; OrderedLocusNames=aq_433;
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       in association with DnaK and GrpE. It is the nucleotide exchange factor
CC       for DnaK and may function as a thermosensor. Unfolded proteins bind
CC       initially to DnaJ; upon interaction with the DnaJ-bound protein, DnaK
CC       hydrolyzes its bound ATP, resulting in the formation of a stable
CC       complex. GrpE releases ADP from DnaK; ATP binding to DnaK triggers the
CC       release of the substrate protein, thus completing the reaction cycle.
CC       Several rounds of ATP-dependent interactions between DnaJ, DnaK and
CC       GrpE are required for fully efficient folding. {ECO:0000255|HAMAP-
CC       Rule:MF_01151}.
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_01151}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01151}.
CC   -!- SIMILARITY: Belongs to the GrpE family. {ECO:0000255|HAMAP-
CC       Rule:MF_01151}.
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DR   EMBL; AE000657; AAC06707.1; -; Genomic_DNA.
DR   PIR; E70339; E70339.
DR   RefSeq; NP_213305.1; NC_000918.1.
DR   RefSeq; WP_010880243.1; NC_000918.1.
DR   AlphaFoldDB; O66745; -.
DR   SMR; O66745; -.
DR   STRING; 224324.aq_433; -.
DR   EnsemblBacteria; AAC06707; AAC06707; aq_433.
DR   KEGG; aae:aq_433; -.
DR   PATRIC; fig|224324.8.peg.358; -.
DR   eggNOG; COG0576; Bacteria.
DR   HOGENOM; CLU_057217_5_2_0; -.
DR   InParanoid; O66745; -.
DR   OMA; YAYEKIA; -.
DR   OrthoDB; 1906715at2; -.
DR   Proteomes; UP000000798; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0000774; F:adenyl-nucleotide exchange factor activity; IBA:GO_Central.
DR   GO; GO:0051087; F:chaperone binding; IEA:InterPro.
DR   GO; GO:0042803; F:protein homodimerization activity; IEA:InterPro.
DR   GO; GO:0051082; F:unfolded protein binding; IBA:GO_Central.
DR   GO; GO:0006457; P:protein folding; IEA:InterPro.
DR   CDD; cd00446; GrpE; 1.
DR   Gene3D; 2.30.22.10; -; 1.
DR   Gene3D; 3.90.20.20; -; 1.
DR   HAMAP; MF_01151; GrpE; 1.
DR   InterPro; IPR000740; GrpE.
DR   InterPro; IPR013805; GrpE_coiled_coil.
DR   InterPro; IPR009012; GrpE_head.
DR   PANTHER; PTHR21237; PTHR21237; 1.
DR   Pfam; PF01025; GrpE; 1.
DR   PRINTS; PR00773; GRPEPROTEIN.
DR   SUPFAM; SSF51064; SSF51064; 1.
DR   SUPFAM; SSF58014; SSF58014; 1.
DR   PROSITE; PS01071; GRPE; 1.
PE   3: Inferred from homology;
KW   Chaperone; Cytoplasm; Reference proteome; Stress response.
FT   CHAIN           1..182
FT                   /note="Protein GrpE"
FT                   /id="PRO_0000113734"
SQ   SEQUENCE   182 AA;  21812 MW;  70CD1B510BA818D8 CRC64;
     MEKNQKEIEK ELEELRKREK ELEEKIQKLE TIAKNSNLRV AELQREIDYL KERYRRDLEE
     QRKFCYEKFA YDLLEVMDNF ERALEYGRQA QDVKSILLGI EMIYSEMKKI FEKYGIREIP
     VEGKEFDPYV AEAVEKVETD QYPPNTVVKV IRKGYYIHDK VLRPARVAVA VPPQEEEGEE
     IT