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Database: UniProt
Entry: A0A2N3PQ94_9PROT
LinkDB: A0A2N3PQ94_9PROT
Original site: A0A2N3PQ94_9PROT 
ID   A0A2N3PQ94_9PROT        Unreviewed;       360 AA.
AC   A0A2N3PQ94;
DT   25-APR-2018, integrated into UniProtKB/TrEMBL.
DT   25-APR-2018, sequence version 1.
DT   24-JAN-2024, entry version 15.
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=CWS72_21220 {ECO:0000313|EMBL:PKU22575.1};
OS   Telmatospirillum siberiense.
OC   Bacteria; Pseudomonadota; Alphaproteobacteria; Rhodospirillales;
OC   Rhodospirillaceae; Telmatospirillum.
OX   NCBI_TaxID=382514 {ECO:0000313|EMBL:PKU22575.1, ECO:0000313|Proteomes:UP000233293};
RN   [1] {ECO:0000313|Proteomes:UP000233293}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=26-4b1 {ECO:0000313|Proteomes:UP000233293};
RA   Hausmann B., Pjevac P., Schreck K., Herbold C.W., Daims H., Wagner M.,
RA   Pester M., Loy A.;
RT   "Draft genome sequence of Telmatospirillum siberiense 26-4b1T, an
RT   acidotolerant peatland alphaproteobacterium potentially involved in sulfur
RT   cycling.";
RL   Submitted (DEC-2017) 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}.
CC   -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC       whole genome shotgun (WGS) entry which is preliminary data.
CC       {ECO:0000313|EMBL:PKU22575.1}.
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DR   EMBL; PIUM01000030; PKU22575.1; -; Genomic_DNA.
DR   AlphaFoldDB; A0A2N3PQ94; -.
DR   OrthoDB; 9793421at2; -.
DR   Proteomes; UP000233293; 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:UP000233293}.
FT   DOMAIN          6..123
FT                   /note="Response regulatory"
FT                   /evidence="ECO:0000259|PROSITE:PS50110"
FT   DOMAIN          170..356
FT                   /note="CheB-type methylesterase"
FT                   /evidence="ECO:0000259|PROSITE:PS50122"
FT   ACT_SITE        182
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00099,
FT                   ECO:0000256|PROSITE-ProRule:PRU00050"
FT   ACT_SITE        208
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00099,
FT                   ECO:0000256|PROSITE-ProRule:PRU00050"
FT   ACT_SITE        304
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   360 AA;  38186 MW;  6EF9D47339F7FD66 CRC64;
     MSKKVKVLIV DDSASVRQTL SEILSDDPRI EVLGTAADPF AAARRISQEV PDVITLDVSM
     PKMDGITFLR KVMAQRPIPV VMCSALTEEG SSSMIEALDA GAVDIIAKPR VDTRQQLREA
     GIRICDTVVA AASARLRQPA APGIARARDP EKKLTADVIM PPPIVTRTAA RTTERVICIG
     ASTGGTEALR HLLQSLPANT PGLVIVQHMP EHFTAAFANR LDSLCAMEVK EAADGDQVMR
     GRALIAPGNR HMLLHRNGNS YRVALKDGPL VTRHRPSVDV LFRSAAQYAG PNALGILMTG
     MGDDGAKGLL EMRQAGSATV AQDEASCVVF GMPKEAIALG AVEKVLPLDA LAGEIVRSGG
//
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