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Database: UniProt
Entry: A0A1R1LYR9_9GAMM
LinkDB: A0A1R1LYR9_9GAMM
Original site: A0A1R1LYR9_9GAMM 
ID   A0A1R1LYR9_9GAMM        Unreviewed;       352 AA.
AC   A0A1R1LYR9;
DT   12-APR-2017, integrated into UniProtKB/TrEMBL.
DT   12-APR-2017, sequence version 1.
DT   24-JAN-2024, entry version 25.
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=BGP75_14140 {ECO:0000313|EMBL:OMH32679.1};
OS   Motiliproteus sp. MSK22-1.
OC   Bacteria; Pseudomonadota; Gammaproteobacteria; Oceanospirillales;
OC   Oceanospirillaceae; Motiliproteus.
OX   NCBI_TaxID=1897630 {ECO:0000313|EMBL:OMH32679.1, ECO:0000313|Proteomes:UP000187359};
RN   [1] {ECO:0000313|EMBL:OMH32679.1, ECO:0000313|Proteomes:UP000187359}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=MSK22-1 {ECO:0000313|EMBL:OMH32679.1,
RC   ECO:0000313|Proteomes:UP000187359};
RA   Nakajima Y., Yoshizawa S., Ogura Y., Hayashi T., Kogure K.;
RT   "Draft genome of Motiliproteus sp. strain MSK22-1.";
RL   Submitted (AUG-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}.
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:OMH32679.1}.
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DR   EMBL; MIEQ01000046; OMH32679.1; -; Genomic_DNA.
DR   RefSeq; WP_076719426.1; NZ_MIEQ01000046.1.
DR   AlphaFoldDB; A0A1R1LYR9; -.
DR   STRING; 1897630.BGP75_14140; -.
DR   OrthoDB; 9793421at2; -.
DR   Proteomes; UP000187359; 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:UP000187359}.
FT   DOMAIN          3..121
FT                   /note="Response regulatory"
FT                   /evidence="ECO:0000259|PROSITE:PS50110"
FT   DOMAIN          159..352
FT                   /note="CheB-type methylesterase"
FT                   /evidence="ECO:0000259|PROSITE:PS50122"
FT   ACT_SITE        172
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00099,
FT                   ECO:0000256|PROSITE-ProRule:PRU00050"
FT   ACT_SITE        199
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00099,
FT                   ECO:0000256|PROSITE-ProRule:PRU00050"
FT   ACT_SITE        295
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00099,
FT                   ECO:0000256|PROSITE-ProRule:PRU00050"
FT   MOD_RES         54
FT                   /note="4-aspartylphosphate"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00099,
FT                   ECO:0000256|PROSITE-ProRule:PRU00169"
SQ   SEQUENCE   352 AA;  37749 MW;  2F7943CEC648036F CRC64;
     MIRILITEDS DVVAMLLQAI LDNEPDMAVI GRARNGREAV LKVNELKPDL VTMDIRMPEL
     DGLGATRIIM STSPVPIVVI SSCVDDNELQ ITFRAIEEGA LAVLEKPYGL NHPGFEIIRN
     DIVDTVRAMS EVKVIRRKPA RHTTVALDTC TQVLPVLPPL TGVYELVAIG ISTGGPLAIR
     GLLLSLPLEF PVAILIAQHI SKGFLAGLIT WLSTNTLLTV KCAEDGETLK AATVYFAPDD
     YHLLVARNHN GLVAQLCSSA PVNGFRPSAT PLLHSVARVC GRKGIGILMT GMGCDGAEGL
     LELRRNGGHT LVQDAESAVV YGMPGSALAL DAVDQIVQLE KLPFYLNGLI SK
//
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