ID I4DA87_DESAJ Unreviewed; 393 AA.
AC I4DA87;
DT 05-SEP-2012, integrated into UniProtKB/TrEMBL.
DT 05-SEP-2012, sequence version 1.
DT 27-MAR-2024, entry version 69.
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 OrderedLocusNames=Desaci_3830 {ECO:0000313|EMBL:AFM42711.1};
OS Desulfosporosinus acidiphilus (strain DSM 22704 / JCM 16185 / SJ4).
OC Bacteria; Bacillota; Clostridia; Eubacteriales; Desulfitobacteriaceae;
OC Desulfosporosinus.
OX NCBI_TaxID=646529 {ECO:0000313|EMBL:AFM42711.1, ECO:0000313|Proteomes:UP000002892};
RN [1] {ECO:0000313|EMBL:AFM42711.1, ECO:0000313|Proteomes:UP000002892}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 22704 / JCM 16185 / SJ4
RC {ECO:0000313|Proteomes:UP000002892};
RX PubMed=23105050; DOI=10.1128/JB.01392-12;
RA Pester M., Brambilla E., Alazard D., Rattei T., Weinmaier T., Han J.,
RA Lucas S., Lapidus A., Cheng J.F., Goodwin L., Pitluck S., Peters L.,
RA Ovchinnikova G., Teshima H., Detter J.C., Han C.S., Tapia R., Land M.L.,
RA Hauser L., Kyrpides N.C., Ivanova N.N., Pagani I., Huntmann M., Wei C.L.,
RA Davenport K.W., Daligault H., Chain P.S., Chen A., Mavromatis K.,
RA Markowitz V., Szeto E., Mikhailova N., Pati A., Wagner M., Woyke T.,
RA Ollivier B., Klenk H.P., Spring S., Loy A.;
RT "Complete genome sequences of Desulfosporosinus orientis DSM765T,
RT Desulfosporosinus youngiae DSM17734T, Desulfosporosinus meridiei DSM13257T,
RT and Desulfosporosinus acidiphilus DSM22704T.";
RL J. Bacteriol. 194:6300-6301(2012).
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 -!- FUNCTION: May play the central regulatory role in sporulation. It may
CC be an element of the effector pathway responsible for the activation of
CC sporulation genes in response to nutritional stress. Spo0A may act in
CC concert with spo0H (a sigma factor) to control the expression of some
CC genes that are critical to the sporulation process.
CC {ECO:0000256|ARBA:ARBA00024867}.
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}.
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DR EMBL; CP003639; AFM42711.1; -; Genomic_DNA.
DR RefSeq; WP_014828698.1; NC_018068.1.
DR AlphaFoldDB; I4DA87; -.
DR STRING; 646529.Desaci_3830; -.
DR KEGG; dai:Desaci_3830; -.
DR eggNOG; COG2201; Bacteria.
DR HOGENOM; CLU_000445_51_0_9; -.
DR Proteomes; UP000002892; Chromosome.
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|HAMAP-Rule:MF_00099, ECO:0000256|PROSITE-
KW ProRule:PRU00050}; 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}.
FT DOMAIN 10..127
FT /note="Response regulatory"
FT /evidence="ECO:0000259|PROSITE:PS50110"
FT DOMAIN 198..392
FT /note="CheB-type methylesterase"
FT /evidence="ECO:0000259|PROSITE:PS50122"
FT ACT_SITE 210
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00099,
FT ECO:0000256|PROSITE-ProRule:PRU00050"
FT ACT_SITE 237
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00099,
FT ECO:0000256|PROSITE-ProRule:PRU00050"
FT ACT_SITE 334
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00099,
FT ECO:0000256|PROSITE-ProRule:PRU00050"
FT MOD_RES 61
FT /note="4-aspartylphosphate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00099,
FT ECO:0000256|PROSITE-ProRule:PRU00169"
SQ SEQUENCE 393 AA; 41228 MW; 7D6BB1B5C2704994 CRC64;
MIESPKTPVG VLVVDDSPFM RLTLQKILSQ SPKIKVLDTA RDGREGILKL QSLHPQVVTM
DVEMPVMDGL RALEEVMRWQ PTPIIILSSV TTEGAQATLK ALDLGAVDVV AKPTGKQGDD
LQVLSHDLVE KVLAAAEVNL NRLGRKGLTN NVGVAGNLGA VNQTTGRKVE ISASSPGAPP
LKGQIPRPST AIKSTVLPKH AVEIVAIGTS TGGPSALQAV LPVLPGNFPV PVLVAQHMPA
GFTGPLAQRL NGLCQLNVKE GIHGEVLKAG TVYVAPAGKQ LEVLRKSGQL TLQIGDNAPI
PTLYHPSVDV MLLSLAKSVG KGTLGVVMTG MGNDGTRGMK EVKALEGFSI VESEETCVVY
GMPRSVVEAG LADRIVPLGQ IGRTIVECVM KRG
//
