ID H8Z4R1_9GAMM Unreviewed; 349 AA.
AC H8Z4R1;
DT 16-MAY-2012, integrated into UniProtKB/TrEMBL.
DT 16-MAY-2012, sequence version 1.
DT 27-MAR-2024, entry version 56.
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 ORFNames=Thi970DRAFT_03944 {ECO:0000313|EMBL:EIC20318.1};
OS Thiorhodovibrio frisius.
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Chromatiales; Chromatiaceae;
OC Thiorhodovibrio.
OX NCBI_TaxID=631362 {ECO:0000313|EMBL:EIC20318.1, ECO:0000313|Proteomes:UP000002964};
RN [1] {ECO:0000313|Proteomes:UP000002964}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=970 {ECO:0000313|Proteomes:UP000002964};
RG US DOE Joint Genome Institute (JGI-PGF);
RA Lucas S., Han J., Lapidus A., Cheng J.-F., Goodwin L., Pitluck S.,
RA Peters L., Land M.L., Hauser L., Vogl K., Liu Z., Overmann J.,
RA Frigaard N.-U., Bryant D.A., Woyke T.J.;
RL Submitted (JUN-2011) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EMBL:EIC20318.1, ECO:0000313|Proteomes:UP000002964}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=970 {ECO:0000313|EMBL:EIC20318.1,
RC ECO:0000313|Proteomes:UP000002964};
RG US DOE Joint Genome Institute;
RA Lucas S., Han J., Lapidus A., Cheng J.-F., Goodwin L., Pitluck S.,
RA Peters L., Ovchinnikova G., Zhang X., Detter J.C., Han C., Tapia R.,
RA Land M., Hauser L., Kyrpides N., Ivanova N., Pagani I., Vogl K., Liu Z.,
RA Overmann J., Frigaard N.-U., Bryant D., Woyke T.;
RL Submitted (NOV-2011) to the EMBL/GenBank/DDBJ databases.
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; JH603170; EIC20318.1; -; Genomic_DNA.
DR RefSeq; WP_009150721.1; NZ_JH603170.1.
DR AlphaFoldDB; H8Z4R1; -.
DR STRING; 631362.Thi970DRAFT_03944; -.
DR eggNOG; COG2201; Bacteria.
DR HOGENOM; CLU_000445_51_0_6; -.
DR OrthoDB; 9793421at2; -.
DR Proteomes; UP000002964; Unassembled WGS sequence.
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:SF6; PROTEIN-GLUTAMATE METHYLESTERASE_PROTEIN-GLUTAMINE GLUTAMINASE; 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|ARBA:ARBA00022500, ECO:0000256|HAMAP-
KW Rule:MF_00099};
KW Cytoplasm {ECO:0000256|ARBA:ARBA00022490, 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:UP000002964}.
FT DOMAIN 4..119
FT /note="Response regulatory"
FT /evidence="ECO:0000259|PROSITE:PS50110"
FT DOMAIN 157..349
FT /note="CheB-type methylesterase"
FT /evidence="ECO:0000259|PROSITE:PS50122"
FT REGION 136..163
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 171
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00099,
FT ECO:0000256|PROSITE-ProRule:PRU00050"
FT ACT_SITE 198
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00099,
FT ECO:0000256|PROSITE-ProRule:PRU00050"
FT ACT_SITE 291
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00099,
FT ECO:0000256|PROSITE-ProRule:PRU00050"
FT MOD_RES 55
FT /note="4-aspartylphosphate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00099,
FT ECO:0000256|PROSITE-ProRule:PRU00169"
SQ SEQUENCE 349 AA; 36655 MW; 067F662156D673D5 CRC64;
MSIRVLIVDD SPLARGLLRA ILEREPDIEV VGEATDGYRA VDLARELRPS LVTMDMEMPG
LHGLDAIAKI MRTKALPILV VSNVEDAATA CEALNRGALD VIAKPDDSEA RVAAFIAKVR
LLAGMVVATR WRAPQAQRQL AQEPKASPTR RPSPAPPQAS AQSRLVAIAA STGGPQALAT
ILSTLPADFP ATVLIAQHIA EGFSAGLAQW LSLSSRLPVQ LARDGETPRS GQVYLSPSEH
NLALSAGGRL ELRPRTASDI YHPNCDLLLC SVAEVAGPRA IGLILTGMSS DGALGMAHIR
AHGGLTLAQD EASSVVYGMN RVAIEAGAID RVLPLAQLGA SIDRAVRAA
//
