ID A0A0F5APN0_9GAMM Unreviewed; 378 AA.
AC A0A0F5APN0;
DT 24-JUN-2015, integrated into UniProtKB/TrEMBL.
DT 24-JUN-2015, sequence version 1.
DT 27-MAR-2024, entry version 39.
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=WN56_10355 {ECO:0000313|EMBL:KKA44421.1};
OS Salinivibrio sp. KP-1.
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Vibrionales; Vibrionaceae;
OC Salinivibrio.
OX NCBI_TaxID=1406902 {ECO:0000313|EMBL:KKA44421.1, ECO:0000313|Proteomes:UP000033449};
RN [1] {ECO:0000313|EMBL:KKA44421.1, ECO:0000313|Proteomes:UP000033449}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=KP-1 {ECO:0000313|EMBL:KKA44421.1,
RC ECO:0000313|Proteomes:UP000033449};
RA Kaur G., Kumar A., Mathan Kumar R., Kumar N., Singh N.K., Arora A.,
RA Kaur N., Bala M., Mayilraj S.;
RT "Taxonomic description and genome sequence of Salinivibrio halophilus sp.
RT nov., a novel halotolerant gammaproteobacterium isolated from marine
RT sediment and emended description of the genus Salinivibrio.";
RL Submitted (MAR-2015) 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:KKA44421.1}.
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DR EMBL; LAQR01000038; KKA44421.1; -; Genomic_DNA.
DR RefSeq; WP_046074928.1; NZ_LAQR01000038.1.
DR AlphaFoldDB; A0A0F5APN0; -.
DR PATRIC; fig|1406902.3.peg.2055; -.
DR OrthoDB; 9793421at2; -.
DR Proteomes; UP000033449; 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:SF3; PROTEIN-GLUTAMATE METHYLESTERASE_PROTEIN-GLUTAMINE GLUTAMINASE 1; 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}; Cytoplasm {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:UP000033449}.
FT DOMAIN 4..121
FT /note="Response regulatory"
FT /evidence="ECO:0000259|PROSITE:PS50110"
FT DOMAIN 185..378
FT /note="CheB-type methylesterase"
FT /evidence="ECO:0000259|PROSITE:PS50122"
FT REGION 133..182
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 141..157
FT /note="Polar residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 197
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00099,
FT ECO:0000256|PROSITE-ProRule:PRU00050"
FT ACT_SITE 224
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00099,
FT ECO:0000256|PROSITE-ProRule:PRU00050"
FT ACT_SITE 320
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 378 AA; 40352 MW; 497E6201D329623A CRC64;
MAVKVLVVDD SSFFRRRVSE IINADPRMEV IDSAVNGKEA VEKTAQLKPD VVTMDVEMPV
LDGISAVRQI MAQTPTPILM FSSLTHDGAK ATLDALEAGA LDFLPKKFED IARNREEATS
LLQQRVLEIA RKRPVLRRAT RPSSPGSTGQ TASPSGGVRT PARPASRPAV GTSAPSKAPA
RFTATGKRYQ LMAIGTSTGG PVALQKVLTK LPANFPLPIV LIQHMPATFT SAFAQRLNGL
SKITVVEAKD GDTLKPGHAY LAPGGMQMMI DGRPGAARLK ILDGGERMNY KPCVDVTFGS
AAKIYGDKVL SMVLTGMGAD GREGARMLKS AGATIWAQDE ESCVVYGMPQ AVAKAGISSE
DLPLERIAER IMVELNLK
//
