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Database: UniProt
Entry: A0A1H9EZM8_9BURK
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ID   A0A1H9EZM8_9BURK        Unreviewed;       345 AA.
AC   A0A1H9EZM8;
DT   22-NOV-2017, integrated into UniProtKB/TrEMBL.
DT   22-NOV-2017, sequence version 1.
DT   24-JAN-2024, entry version 21.
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=SAMN02982919_00415 {ECO:0000313|EMBL:SEQ31095.1};
OS   Giesbergeria anulus.
OC   Bacteria; Pseudomonadota; Betaproteobacteria; Burkholderiales;
OC   Comamonadaceae; Giesbergeria.
OX   NCBI_TaxID=180197 {ECO:0000313|EMBL:SEQ31095.1, ECO:0000313|Proteomes:UP000199766};
RN   [1] {ECO:0000313|EMBL:SEQ31095.1, ECO:0000313|Proteomes:UP000199766}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 35958 {ECO:0000313|EMBL:SEQ31095.1,
RC   ECO:0000313|Proteomes:UP000199766};
RA   de Groot N.N.;
RL   Submitted (OCT-2016) 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; FOGD01000001; SEQ31095.1; -; Genomic_DNA.
DR   AlphaFoldDB; A0A1H9EZM8; -.
DR   STRING; 180197.SAMN02982919_00415; -.
DR   OrthoDB; 9793421at2; -.
DR   Proteomes; UP000199766; 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|ARBA:ARBA00022553, ECO:0000256|HAMAP-
KW   Rule:MF_00099}; Reference proteome {ECO:0000313|Proteomes:UP000199766}.
FT   DOMAIN          6..121
FT                   /note="Response regulatory"
FT                   /evidence="ECO:0000259|PROSITE:PS50110"
FT   DOMAIN          143..337
FT                   /note="CheB-type methylesterase"
FT                   /evidence="ECO:0000259|PROSITE:PS50122"
FT   ACT_SITE        166
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00099,
FT                   ECO:0000256|PROSITE-ProRule:PRU00050"
FT   ACT_SITE        193
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00099,
FT                   ECO:0000256|PROSITE-ProRule:PRU00050"
FT   ACT_SITE        286
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00099,
FT                   ECO:0000256|PROSITE-ProRule:PRU00050"
FT   MOD_RES         57
FT                   /note="4-aspartylphosphate"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00099,
FT                   ECO:0000256|PROSITE-ProRule:PRU00169"
SQ   SEQUENCE   345 AA;  36676 MW;  9DC8933B1ABFC072 CRC64;
     MPAKIRVVIA DDSKLTREVL RTLLQEDDGI EVVGEAANGR EAIDLVQRLK PDVLTLDIIM
     PVMTGTQAIR EIMAASPLPI LVISSVANAK NAFDCIQGGA LDVVMKPQFN ATSGADLARR
     IRVLANTKVM RNGPMRRTPE SSPTSSLLEP TGQRTQFSRV FAIASSTGGP QALATILPAL
     PSSFPCPVVV AQHVAFGFAQ GMVDWLGSLC PMPVHLVTEA VCLQAGHIYI APPERNLSIN
     RRLQLVLDEQ KSGDIFHPSC DHLLKSVANI CGLQAVGIIL SGMSSDGVQG MAQIRQSGGV
     TLAQDEASSV IFGMNRVAIE SGAVQQVLPI MAISEQMQKL AGGWA
//
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