CLPB_RHIME
ID CLPB_RHIME Reviewed; 868 AA.
AC Q92MK7;
DT 11-OCT-2004, integrated into UniProtKB/Swiss-Prot.
DT 01-DEC-2001, sequence version 1.
DT 03-AUG-2022, entry version 104.
DE RecName: Full=Chaperone protein ClpB;
GN Name=clpB; OrderedLocusNames=R02608; ORFNames=SMc02433;
OS Rhizobium meliloti (strain 1021) (Ensifer meliloti) (Sinorhizobium
OS meliloti).
OC Bacteria; Proteobacteria; Alphaproteobacteria; Hyphomicrobiales;
OC Rhizobiaceae; Sinorhizobium/Ensifer group; Sinorhizobium.
OX NCBI_TaxID=266834;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=1021;
RX PubMed=11481430; DOI=10.1073/pnas.161294398;
RA Capela D., Barloy-Hubler F., Gouzy J., Bothe G., Ampe F., Batut J.,
RA Boistard P., Becker A., Boutry M., Cadieu E., Dreano S., Gloux S.,
RA Godrie T., Goffeau A., Kahn D., Kiss E., Lelaure V., Masuy D., Pohl T.,
RA Portetelle D., Puehler A., Purnelle B., Ramsperger U., Renard C.,
RA Thebault P., Vandenbol M., Weidner S., Galibert F.;
RT "Analysis of the chromosome sequence of the legume symbiont Sinorhizobium
RT meliloti strain 1021.";
RL Proc. Natl. Acad. Sci. U.S.A. 98:9877-9882(2001).
RN [2]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=1021;
RX PubMed=11474104; DOI=10.1126/science.1060966;
RA Galibert F., Finan T.M., Long S.R., Puehler A., Abola P., Ampe F.,
RA Barloy-Hubler F., Barnett M.J., Becker A., Boistard P., Bothe G.,
RA Boutry M., Bowser L., Buhrmester J., Cadieu E., Capela D., Chain P.,
RA Cowie A., Davis R.W., Dreano S., Federspiel N.A., Fisher R.F., Gloux S.,
RA Godrie T., Goffeau A., Golding B., Gouzy J., Gurjal M., Hernandez-Lucas I.,
RA Hong A., Huizar L., Hyman R.W., Jones T., Kahn D., Kahn M.L., Kalman S.,
RA Keating D.H., Kiss E., Komp C., Lelaure V., Masuy D., Palm C., Peck M.C.,
RA Pohl T.M., Portetelle D., Purnelle B., Ramsperger U., Surzycki R.,
RA Thebault P., Vandenbol M., Vorhoelter F.J., Weidner S., Wells D.H.,
RA Wong K., Yeh K.-C., Batut J.;
RT "The composite genome of the legume symbiont Sinorhizobium meliloti.";
RL Science 293:668-672(2001).
CC -!- FUNCTION: Part of a stress-induced multi-chaperone system, it is
CC involved in the recovery of the cell from heat-induced damage, in
CC cooperation with DnaK, DnaJ and GrpE. Acts before DnaK, in the
CC processing of protein aggregates. Protein binding stimulates the ATPase
CC activity; ATP hydrolysis unfolds the denatured protein aggregates,
CC which probably helps expose new hydrophobic binding sites on the
CC surface of ClpB-bound aggregates, contributing to the solubilization
CC and refolding of denatured protein aggregates by DnaK (By similarity).
CC {ECO:0000250}.
CC -!- SUBUNIT: Homohexamer. The oligomerization is ATP-dependent (By
CC similarity). {ECO:0000250}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000305}.
CC -!- DOMAIN: The Clp repeat (R) domain probably functions as a substrate-
CC discriminating domain, recruiting aggregated proteins to the ClpB
CC hexamer and/or stabilizing bound proteins. The NBD2 domain is
CC responsible for oligomerization, whereas the NBD1 domain stabilizes the
CC hexamer probably in an ATP-dependent manner. The movement of the
CC coiled-coil domain is essential for ClpB ability to rescue proteins
CC from an aggregated state, probably by pulling apart large aggregated
CC proteins, which are bound between the coiled-coils motifs of adjacent
CC ClpB subunits in the functional hexamer (By similarity). {ECO:0000250}.
CC -!- SIMILARITY: Belongs to the ClpA/ClpB family. {ECO:0000305}.
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DR EMBL; AL591688; CAC47187.1; -; Genomic_DNA.
DR RefSeq; NP_386714.1; NC_003047.1.
DR RefSeq; WP_010970072.1; NC_003047.1.
DR AlphaFoldDB; Q92MK7; -.
DR SMR; Q92MK7; -.
DR STRING; 266834.SMc02433; -.
DR EnsemblBacteria; CAC47187; CAC47187; SMc02433.
DR GeneID; 61604070; -.
DR KEGG; sme:SMc02433; -.
DR PATRIC; fig|266834.11.peg.4106; -.
DR eggNOG; COG0542; Bacteria.
DR HOGENOM; CLU_005070_4_2_5; -.
DR OMA; ERMKAVM; -.
DR Proteomes; UP000001976; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR GO; GO:0016887; F:ATP hydrolysis activity; IEA:InterPro.
DR GO; GO:0042026; P:protein refolding; IEA:InterPro.
DR GO; GO:0009408; P:response to heat; IEA:InterPro.
DR Gene3D; 1.10.1780.10; -; 1.
DR Gene3D; 3.40.50.300; -; 3.
DR InterPro; IPR003593; AAA+_ATPase.
DR InterPro; IPR003959; ATPase_AAA_core.
DR InterPro; IPR017730; Chaperonin_ClpB.
DR InterPro; IPR019489; Clp_ATPase_C.
DR InterPro; IPR036628; Clp_N_dom_sf.
DR InterPro; IPR004176; Clp_R_dom.
DR InterPro; IPR001270; ClpA/B.
DR InterPro; IPR018368; ClpA/B_CS1.
DR InterPro; IPR028299; ClpA/B_CS2.
DR InterPro; IPR041546; ClpA/ClpB_AAA_lid.
DR InterPro; IPR027417; P-loop_NTPase.
DR Pfam; PF00004; AAA; 1.
DR Pfam; PF07724; AAA_2; 1.
DR Pfam; PF17871; AAA_lid_9; 1.
DR Pfam; PF02861; Clp_N; 2.
DR Pfam; PF10431; ClpB_D2-small; 1.
DR PRINTS; PR00300; CLPPROTEASEA.
DR SMART; SM00382; AAA; 2.
DR SMART; SM01086; ClpB_D2-small; 1.
DR SUPFAM; SSF52540; SSF52540; 2.
DR SUPFAM; SSF81923; SSF81923; 1.
DR TIGRFAMs; TIGR03346; chaperone_ClpB; 1.
DR PROSITE; PS51903; CLP_R; 1.
DR PROSITE; PS00870; CLPAB_1; 1.
DR PROSITE; PS00871; CLPAB_2; 1.
PE 3: Inferred from homology;
KW ATP-binding; Chaperone; Coiled coil; Cytoplasm; Nucleotide-binding;
KW Reference proteome; Repeat; Stress response.
FT CHAIN 1..868
FT /note="Chaperone protein ClpB"
FT /id="PRO_0000191166"
FT DOMAIN 3..147
FT /note="Clp R"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01251"
FT REGION 6..71
FT /note="Repeat 1"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01251"
FT REGION 83..147
FT /note="Repeat 2"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01251"
FT REGION 160..341
FT /note="NBD1"
FT /evidence="ECO:0000250"
FT REGION 342..547
FT /note="Linker"
FT /evidence="ECO:0000250"
FT REGION 557..767
FT /note="NBD2"
FT /evidence="ECO:0000250"
FT REGION 768..868
FT /note="C-terminal"
FT /evidence="ECO:0000250"
FT COILED 392..526
FT /evidence="ECO:0000250"
FT BINDING 207..214
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /ligand_label="1"
FT /evidence="ECO:0000250"
FT BINDING 607..614
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /ligand_label="2"
FT /evidence="ECO:0000250"
SQ SEQUENCE 868 AA; 95671 MW; 99043FE19091198D CRC64;
MDIEKYSERV RGFLQSAQTY ALAEGHQQFT PEHVLKVLLD DDQGMAASLI ERAGGNAREA
KVGTAAALAK LPKVTGGNGS VYLSQPLAKV FTAAEDAAKK AGDSFVTVER LLLALAIESS
AATASILSKA GVTPTKLNQV INEIRKGRTA DSANAEQGFD SLKKYARDLT AEAREGKLDP
VIGRDDEIRR TIQVLSRRTK NNPVLIGEPG VGKTAIAEGL ALRIVNGDVP ESLKDKRLMA
LDMGALIAGA KFRGEFEERL KAVLNEVRSE GGEIILFIDE MHTLVGAGKA DGAMDASNLL
KPALARGELH CVGATTLDEY RKHVEKDAAL ARRFQPVMVE EPTVEDTISI LRGLKEKYEQ
HHKVRISDSA LVAAAALSNR YITDRFLPDK AIDLMDEAAS RLRMQVDSKP EELDELDRRV
IQLKIEREAL KKETDVSSKD RLAKLELDLS SLEEEAAALT ARWQAEKQKL GQAADLKKQL
DEARNELQIA QRKGEFQRAG ELAYGVIPNL EKELAEAESQ DGASANPMVQ EVVTPDNIAH
IVSRWTGIPV DKMLEGERDK LLRMEDELAK WVVGQGDAVQ AVSRAVRRSR AGLQDPNRPI
GSFIFLGPTG VGKTELTKAL ARFLFDDETA LMRIDMSEYM EKHSVARLIG APPGYVGYEE
GGALTESVRR RPYQVVLFDE IEKAHPDVFN VLLQVLDDGR LTDGQGRTVD FKNTMIIMTS
NLGAEYLTAL GENEDSDAVR DQVMEVVRAA FRPEFLNRVD EIILFHRLRR SEMGAIVDIQ
LERLRKLLSD RKITLELEDD ARVFLADRGY DPAYGARPLK RAIQKYVQDP LAEKVLQGEF
PDGSVIKVVA GSDRLNFKRG AGANKEAA
