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CHEB1_BURCA
ID   CHEB1_BURCA             Reviewed;         360 AA.
AC   Q1BRL2;
DT   12-DEC-2006, integrated into UniProtKB/Swiss-Prot.
DT   11-JUL-2006, sequence version 1.
DT   25-MAY-2022, entry version 90.
DE   RecName: Full=Protein-glutamate methylesterase/protein-glutamine glutaminase 1 {ECO:0000255|HAMAP-Rule:MF_00099};
DE            EC=3.1.1.61 {ECO:0000255|HAMAP-Rule:MF_00099};
DE            EC=3.5.1.44 {ECO:0000255|HAMAP-Rule:MF_00099};
GN   Name=cheB1 {ECO:0000255|HAMAP-Rule:MF_00099}; OrderedLocusNames=Bcen_2846;
OS   Burkholderia cenocepacia (strain AU 1054).
OC   Bacteria; Proteobacteria; Betaproteobacteria; Burkholderiales;
OC   Burkholderiaceae; Burkholderia; Burkholderia cepacia complex.
OX   NCBI_TaxID=331271;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=AU 1054;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C.,
RA   Glavina del Rio T., Hammon N., Israni S., Dalin E., Tice H., Pitluck S.,
RA   Chain P., Malfatti S., Shin M., Vergez L., Schmutz J., Larimer F., Land M.,
RA   Hauser L., Kyrpides N., Lykidis A., LiPuma J.J., Konstantinidis K.,
RA   Tiedje J.M., Richardson P.;
RT   "Complete sequence of chromosome 1 of Burkholderia cenocepacia AU 1054.";
RL   Submitted (MAY-2006) 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:0000255|HAMAP-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; Evidence={ECO:0000255|HAMAP-
CC         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:0000255|HAMAP-
CC         Rule:MF_00099};
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00099}.
CC   -!- DOMAIN: Contains a C-terminal catalytic domain, and an N-terminal
CC       region which modulates catalytic activity. {ECO:0000255|HAMAP-
CC       Rule:MF_00099}.
CC   -!- PTM: Phosphorylated by CheA. Phosphorylation of the N-terminal
CC       regulatory domain activates the methylesterase activity.
CC       {ECO:0000255|HAMAP-Rule:MF_00099}.
CC   -!- SIMILARITY: Belongs to the CheB family. {ECO:0000255|HAMAP-
CC       Rule:MF_00099}.
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DR   EMBL; CP000378; ABF77743.1; -; Genomic_DNA.
DR   RefSeq; WP_011546709.1; NC_008060.1.
DR   AlphaFoldDB; Q1BRL2; -.
DR   SMR; Q1BRL2; -.
DR   EnsemblBacteria; ABF77743; ABF77743; Bcen_2846.
DR   KEGG; bcn:Bcen_2846; -.
DR   HOGENOM; CLU_000445_51_0_4; -.
DR   OMA; MLEMHRA; -.
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   GO; GO:0018277; P:protein deamination; IEA:UniProtKB-UniRule.
DR   GO; GO:0006482; P:protein demethylation; IEA:UniProtKB-UniRule.
DR   CDD; cd16432; CheB_Rec; 1.
DR   Gene3D; 3.40.50.180; -; 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   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; SSF52172; 1.
DR   SUPFAM; SSF52738; SSF52738; 1.
DR   PROSITE; PS50122; CHEB; 1.
DR   PROSITE; PS50110; RESPONSE_REGULATORY; 1.
PE   3: Inferred from homology;
KW   Chemotaxis; Cytoplasm; Hydrolase; Phosphoprotein.
FT   CHAIN           1..360
FT                   /note="Protein-glutamate methylesterase/protein-glutamine
FT                   glutaminase 1"
FT                   /id="PRO_0000264264"
FT   DOMAIN          5..122
FT                   /note="Response regulatory"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00099"
FT   DOMAIN          161..353
FT                   /note="CheB-type methylesterase"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00099"
FT   ACT_SITE        173
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00099"
FT   ACT_SITE        199
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00099"
FT   ACT_SITE        295
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00099"
FT   MOD_RES         56
FT                   /note="4-aspartylphosphate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00099"
SQ   SEQUENCE   360 AA;  38618 MW;  CBF0F61D440BD2C1 CRC64;
     MQKIKVLCVD DSALIRSLMT EIINSQPDMT VVATAPDPLV ARELIKQHNP DVLTLDVEMP
     RMDGLDFLEK LMRLRPMPVV MVSSLTERGS EITLRALELG AVDFVTKPRV GIRDGMLDYA
     EKLADKIRAA SRARVRQAPQ PQAAARSADS AAAAPMINNP LVSTEKLIII GASTGGTEAI
     REVLTPLPPD APAVLIAQHM PPGFTKSFAQ RLNGLCRIAV KEAEHGERVL PGHAYIAPGH
     AHLLLARSGA NYIAQLSDEP PVNRHRPSVD VLFRSAATHA GKNAIGVILT GMGRDGAAGL
     LEMKRAGAHT FAQDEASCIV FGMPREAIAL GGADEVAPLA DMSRRVMARL ATMGDRVQRV
 
 
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