ID A0A0F4R9X4_9GAMM Unreviewed; 354 AA.
AC A0A0F4R9X4;
DT 24-JUN-2015, integrated into UniProtKB/TrEMBL.
DT 24-JUN-2015, sequence version 1.
DT 27-MAR-2024, entry version 34.
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=TW85_00805 {ECO:0000313|EMBL:KJZ16345.1};
OS Marinomonas sp. S3726.
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Oceanospirillales;
OC Oceanospirillaceae; Marinomonas.
OX NCBI_TaxID=579484 {ECO:0000313|EMBL:KJZ16345.1, ECO:0000313|Proteomes:UP000033747};
RN [1] {ECO:0000313|EMBL:KJZ16345.1, ECO:0000313|Proteomes:UP000033747}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=S3726 {ECO:0000313|EMBL:KJZ16345.1,
RC ECO:0000313|Proteomes:UP000033747};
RX PubMed=25879706; DOI=10.1186/s12864-015-1365-z;
RA Machado H., Sonnenschein E.C., Melchiorsen J., Gram L.;
RT "Genome mining reveals unlocked bioactive potential of marine Gram-negative
RT bacteria.";
RL BMC Genomics 16:158-158(2015).
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:KJZ16345.1}.
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DR EMBL; JXYC01000003; KJZ16345.1; -; Genomic_DNA.
DR RefSeq; WP_046015178.1; NZ_JXYC01000003.1.
DR AlphaFoldDB; A0A0F4R9X4; -.
DR PATRIC; fig|579484.3.peg.169; -.
DR OrthoDB; 9793421at2; -.
DR Proteomes; UP000033747; 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:UP000033747}.
FT DOMAIN 4..121
FT /note="Response regulatory"
FT /evidence="ECO:0000259|PROSITE:PS50110"
FT DOMAIN 170..354
FT /note="CheB-type methylesterase"
FT /evidence="ECO:0000259|PROSITE:PS50122"
FT ACT_SITE 176
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00099,
FT ECO:0000256|PROSITE-ProRule:PRU00050"
FT ACT_SITE 203
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00099,
FT ECO:0000256|PROSITE-ProRule:PRU00050"
FT ACT_SITE 298
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 354 AA; 38158 MW; 379B0BCC4EE8A460 CRC64;
MPVNVLVVDD SGFFRRRLVE IFDADPRLKV IGTATNGQEA VDKVQSLKPD VVTMDYEMPV
LDGIAAVASI MKSRPTPVLM FSSLTHEGAR VTLDALEAGA VDFMPKNFED ISRDSAVVKK
TLIERVLAVA RTRFMGQTKI AAPAEKKAAP APIVLEQGVI IPRRRKNVSL IAIGTSTGGP
MALQTVLTKL PKNLSAPLVL IQHMPAAFTG AFAERLNQIC EITVKEAKDG DKLEAGVALL
APGGKQMMVD PRNGGCVRIL DGDERLNYKP SVDVTFGSAS KCYPGRVLSV VMTGMGVDGR
EGARMLKDTG SRVWSQSEET CVIYGMPMAV EKANLSDDVI HLEQIGERIV KEVG
//
