ID D3PDJ3_DEFDS Unreviewed; 352 AA.
AC D3PDJ3;
DT 20-APR-2010, integrated into UniProtKB/TrEMBL.
DT 20-APR-2010, sequence version 1.
DT 27-MAR-2024, entry version 79.
DE RecName: Full=Protein-glutamate methylesterase/protein-glutamine glutaminase {ECO:0000256|HAMAP-Rule:MF_00099};
DE EC=3.1.1.61 {ECO:0000256|HAMAP-Rule:MF_00099};
DE EC=3.5.1.44 {ECO:0000256|HAMAP-Rule:MF_00099};
GN Name=cheB {ECO:0000256|HAMAP-Rule:MF_00099};
GN OrderedLocusNames=DEFDS_1198 {ECO:0000313|EMBL:BAI80666.1};
OS Deferribacter desulfuricans (strain DSM 14783 / JCM 11476 / NBRC 101012 /
OS SSM1).
OC Bacteria; Deferribacterota; Deferribacteres; Deferribacterales;
OC Deferribacteraceae; Deferribacter.
OX NCBI_TaxID=639282 {ECO:0000313|EMBL:BAI80666.1, ECO:0000313|Proteomes:UP000001520};
RN [1] {ECO:0000313|EMBL:BAI80666.1, ECO:0000313|Proteomes:UP000001520}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 14783 / JCM 11476 / NBRC 101012 / SSM1
RC {ECO:0000313|Proteomes:UP000001520};
RX PubMed=20189949; DOI=10.1093/dnares/dsq005;
RA Takaki Y., Shimamura S., Nakagawa S., Fukuhara Y., Horikawa H., Ankai A.,
RA Harada T., Hosoyama A., Oguchi A., Fukui S., Fujita N., Takami H.,
RA Takai K.;
RT "Bacterial lifestyle in a deep-sea hydrothermal vent chimney revealed by
RT the genome sequence of the thermophilic bacterium Deferribacter
RT desulfuricans SSM1.";
RL DNA Res. 17:123-137(2010).
CC -!- FUNCTION: Involved in chemotaxis. Part of a chemotaxis signal
CC transduction system that modulates chemotaxis in response to various
CC stimuli. Catalyzes the demethylation of specific methylglutamate
CC residues introduced into the chemoreceptors (methyl-accepting
CC chemotaxis proteins or MCP) by CheR. Also mediates the irreversible
CC deamidation of specific glutamine residues to glutamic acid.
CC {ECO:0000256|HAMAP-Rule:MF_00099}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=H2O + L-glutaminyl-[protein] = L-glutamyl-[protein] + NH4(+);
CC Xref=Rhea:RHEA:16441, Rhea:RHEA-COMP:10207, Rhea:RHEA-COMP:10208,
CC ChEBI:CHEBI:15377, ChEBI:CHEBI:28938, ChEBI:CHEBI:29973,
CC ChEBI:CHEBI:30011; EC=3.5.1.44; Evidence={ECO:0000256|HAMAP-
CC Rule:MF_00099};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=[protein]-L-glutamate 5-O-methyl ester + H2O = H(+) + L-
CC glutamyl-[protein] + methanol; Xref=Rhea:RHEA:23236, Rhea:RHEA-
CC COMP:10208, Rhea:RHEA-COMP:10311, ChEBI:CHEBI:15377,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:17790, ChEBI:CHEBI:29973,
CC ChEBI:CHEBI:82795; EC=3.1.1.61;
CC Evidence={ECO:0000256|ARBA:ARBA00000941, ECO:0000256|HAMAP-
CC Rule:MF_00099};
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00099}.
CC -!- DOMAIN: Contains a C-terminal catalytic domain, and an N-terminal
CC region which modulates catalytic activity. {ECO:0000256|HAMAP-
CC Rule:MF_00099}.
CC -!- PTM: Phosphorylated by CheA. Phosphorylation of the N-terminal
CC regulatory domain activates the methylesterase activity.
CC {ECO:0000256|HAMAP-Rule:MF_00099}.
CC -!- SIMILARITY: Belongs to the CheB family. {ECO:0000256|HAMAP-
CC Rule:MF_00099}.
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DR EMBL; AP011529; BAI80666.1; -; Genomic_DNA.
DR RefSeq; WP_013007913.1; NC_013939.1.
DR AlphaFoldDB; D3PDJ3; -.
DR STRING; 639282.DEFDS_1198; -.
DR KEGG; ddf:DEFDS_1198; -.
DR eggNOG; COG2201; Bacteria.
DR HOGENOM; CLU_000445_51_0_0; -.
DR OrthoDB; 9793421at2; -.
DR Proteomes; UP000001520; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0000156; F:phosphorelay response regulator activity; IEA:InterPro.
DR GO; GO:0008984; F:protein-glutamate methylesterase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0050568; F:protein-glutamine glutaminase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0006935; P:chemotaxis; IEA:UniProtKB-UniRule.
DR CDD; cd16432; CheB_Rec; 1.
DR CDD; cd17541; REC_CheB-like; 1.
DR Gene3D; 3.40.50.2300; -; 1.
DR Gene3D; 3.40.50.180; Methylesterase CheB, C-terminal domain; 1.
DR HAMAP; MF_00099; CheB_chemtxs; 1.
DR InterPro; IPR008248; CheB-like.
DR InterPro; IPR035909; CheB_C.
DR InterPro; IPR011006; CheY-like_superfamily.
DR InterPro; IPR000673; Sig_transdc_resp-reg_Me-estase.
DR InterPro; IPR001789; Sig_transdc_resp-reg_receiver.
DR PANTHER; PTHR42872; PROTEIN-GLUTAMATE METHYLESTERASE/PROTEIN-GLUTAMINE GLUTAMINASE; 1.
DR PANTHER; PTHR42872:SF3; PROTEIN-GLUTAMATE METHYLESTERASE_PROTEIN-GLUTAMINE GLUTAMINASE 1; 1.
DR Pfam; PF01339; CheB_methylest; 1.
DR Pfam; PF00072; Response_reg; 1.
DR PIRSF; PIRSF000876; RR_chemtxs_CheB; 1.
DR SMART; SM00448; REC; 1.
DR SUPFAM; SSF52172; CheY-like; 1.
DR SUPFAM; SSF52738; Methylesterase CheB, C-terminal domain; 1.
DR PROSITE; PS50122; CHEB; 1.
DR PROSITE; PS50110; RESPONSE_REGULATORY; 1.
PE 3: Inferred from homology;
KW Chemotaxis {ECO:0000256|HAMAP-Rule:MF_00099, ECO:0000256|PROSITE-
KW ProRule:PRU00050}; Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00099};
KW Hydrolase {ECO:0000256|ARBA:ARBA00022801, ECO:0000256|HAMAP-Rule:MF_00099};
KW Phosphoprotein {ECO:0000256|HAMAP-Rule:MF_00099, ECO:0000256|PROSITE-
KW ProRule:PRU00169}; Reference proteome {ECO:0000313|Proteomes:UP000001520}.
FT DOMAIN 5..122
FT /note="Response regulatory"
FT /evidence="ECO:0000259|PROSITE:PS50110"
FT DOMAIN 158..351
FT /note="CheB-type methylesterase"
FT /evidence="ECO:0000259|PROSITE:PS50122"
FT ACT_SITE 170
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00099,
FT ECO:0000256|PROSITE-ProRule:PRU00050"
FT ACT_SITE 197
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00099,
FT ECO:0000256|PROSITE-ProRule:PRU00050"
FT ACT_SITE 293
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00099,
FT ECO:0000256|PROSITE-ProRule:PRU00050"
FT MOD_RES 56
FT /note="4-aspartylphosphate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00099,
FT ECO:0000256|PROSITE-ProRule:PRU00169"
SQ SEQUENCE 352 AA; 38797 MW; 1BE04461B52AE582 CRC64;
MSKIKVLVVD DSALMRKRIK EMLESDPKIE VIGLARNGED AIKKAKELSP DVITLDVNMP
VMDGLTALKL IVEEEICPVI MVSSLTQKDA EITFKALELG AFDFVPKPGG TISLNIDQIR
DDLIRKVKAA VKGKFKTLKR SVDRKKTIKR RITRRKENES GFKAICIGIS TGGPKTIFDV
LPYLPKDINA AIFLVQHMPP GFTASFAKRL DNYCEIKVKE AEAGDIVEPG ICYLGKGGYH
LTLFQRLNKD IILRLPTKPE HLFMPSVDVM MDSVVKIFQS NTIGVLMTGM GDDGAEGMVK
IKNAGGYTIA ESEETAVVFG MPAEAIKRGG ADIVLPSYEI ANEILRVLEE GW
//
