ID H0Q5K8_9RHOO Unreviewed; 348 AA.
AC H0Q5K8;
DT 22-FEB-2012, integrated into UniProtKB/TrEMBL.
DT 22-FEB-2012, sequence version 1.
DT 27-MAR-2024, entry version 62.
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 ECO:0000313|EMBL:BAL27271.1};
GN ORFNames=AZKH_p0388 {ECO:0000313|EMBL:BAL27271.1};
OS Azoarcus sp. KH32C.
OG Plasmid pAZKH {ECO:0000313|EMBL:BAL27271.1,
OG ECO:0000313|Proteomes:UP000007106}.
OC Bacteria; Pseudomonadota; Betaproteobacteria; Rhodocyclales; Zoogloeaceae;
OC Azoarcus.
OX NCBI_TaxID=748247 {ECO:0000313|EMBL:BAL27271.1, ECO:0000313|Proteomes:UP000007106};
RN [1] {ECO:0000313|EMBL:BAL27271.1, ECO:0000313|Proteomes:UP000007106}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=KH32C {ECO:0000313|EMBL:BAL27271.1,
RC ECO:0000313|Proteomes:UP000007106};
RC PLASMID=Plasmid pAZKH {ECO:0000313|Proteomes:UP000007106};
RA Nishizawa T., Tago T., Oshima K., Hattori M., Ishii S., Otsuka S.,
RA Senoo K.;
RT "Complete genome sequence of Azoarcus sp. KH32C.";
RL Submitted (NOV-2011) 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 ---------------------------------------------------------------------------
CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC ---------------------------------------------------------------------------
DR EMBL; AP012305; BAL27271.1; -; Genomic_DNA.
DR RefSeq; WP_015452045.1; NC_020548.1.
DR AlphaFoldDB; H0Q5K8; -.
DR KEGG; aza:AZKH_p0388; -.
DR PATRIC; fig|748247.4.peg.4963; -.
DR eggNOG; COG2201; Bacteria.
DR HOGENOM; CLU_000445_51_0_4; -.
DR OrthoDB; 9793421at2; -.
DR Proteomes; UP000007106; Plasmid pAZKH.
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}; Plasmid {ECO:0000313|EMBL:BAL27271.1};
KW Reference proteome {ECO:0000313|Proteomes:UP000007106}.
FT DOMAIN 2..119
FT /note="Response regulatory"
FT /evidence="ECO:0000259|PROSITE:PS50110"
FT DOMAIN 148..334
FT /note="CheB-type methylesterase"
FT /evidence="ECO:0000259|PROSITE:PS50122"
FT ACT_SITE 156
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00099,
FT ECO:0000256|PROSITE-ProRule:PRU00050"
FT ACT_SITE 183
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00099,
FT ECO:0000256|PROSITE-ProRule:PRU00050"
FT ACT_SITE 276
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00099,
FT ECO:0000256|PROSITE-ProRule:PRU00050"
FT MOD_RES 53
FT /note="4-aspartylphosphate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00099,
FT ECO:0000256|PROSITE-ProRule:PRU00169"
SQ SEQUENCE 348 AA; 36805 MW; B2245C216AF23FF4 CRC64;
MKIAIVNDLP MAVEALRRAL AGNSGHQVVW TAADGAEAVA RCKQETPDLL LMDLVMPGMD
GVEATRRIMD ETPCAILIVT SSVGANTWRV FDAMGHGALD AVDTPVLGGD PRTGAASLLA
KIDAIGRLIG GGRPVAMPAV RRQSVGIERL VAIGASAGGP AALSALLSAL PGDFPAAVVI
VQHVDRQFAV GMAEWLRQHS RLPVQVAEEG DRPQPGRVLL AGTNDHLAFT SAHRLGYTRE
PVDCVYRPSV DAFFHSVCRF WPGETIGVLL TGMGRDGALG LKALRDRGWH TIAQDRTTSA
VYGMPKAAAD VSAAVEILAL DRIARRLVER FGRVPQGGAR TVAMPPTE
//
