ID B7MEL9_ECO45 Unreviewed; 466 AA.
AC B7MEL9;
DT 10-FEB-2009, integrated into UniProtKB/TrEMBL.
DT 10-FEB-2009, sequence version 1.
DT 24-JAN-2024, entry version 85.
DE RecName: Full=Glutamate decarboxylase {ECO:0000256|ARBA:ARBA00012421, ECO:0000256|RuleBase:RU361171};
DE EC=4.1.1.15 {ECO:0000256|ARBA:ARBA00012421, ECO:0000256|RuleBase:RU361171};
GN Name=gadA {ECO:0000313|EMBL:CAR05140.1};
GN OrderedLocusNames=ECS88_3930 {ECO:0000313|EMBL:CAR05140.1};
OS Escherichia coli O45:K1 (strain S88 / ExPEC).
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; Escherichia.
OX NCBI_TaxID=585035 {ECO:0000313|EMBL:CAR05140.1, ECO:0000313|Proteomes:UP000000747};
RN [1] {ECO:0000313|Proteomes:UP000000747}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=S88 / ExPEC {ECO:0000313|Proteomes:UP000000747};
RX PubMed=19165319; DOI=10.1371/journal.pgen.1000344;
RA Touchon M., Hoede C., Tenaillon O., Barbe V., Baeriswyl S., Bidet P.,
RA Bingen E., Bonacorsi S., Bouchier C., Bouvet O., Calteau A., Chiapello H.,
RA Clermont O., Cruveiller S., Danchin A., Diard M., Dossat C., Karoui M.E.,
RA Frapy E., Garry L., Ghigo J.M., Gilles A.M., Johnson J., Le Bouguenec C.,
RA Lescat M., Mangenot S., Martinez-Jehanne V., Matic I., Nassif X., Oztas S.,
RA Petit M.A., Pichon C., Rouy Z., Ruf C.S., Schneider D., Tourret J.,
RA Vacherie B., Vallenet D., Medigue C., Rocha E.P.C., Denamur E.;
RT "Organised genome dynamics in the Escherichia coli species results in
RT highly diverse adaptive paths.";
RL PLoS Genet. 5:E1000344-E1000344(2009).
CC -!- FUNCTION: Converts glutamate to gamma-aminobutyrate (GABA), consuming
CC one intracellular proton in the reaction. The gad system helps to
CC maintain a near-neutral intracellular pH when cells are exposed to
CC extremely acidic conditions. The ability to survive transit through the
CC acidic conditions of the stomach is essential for successful
CC colonization of the mammalian host by commensal and pathogenic
CC bacteria. {ECO:0000256|ARBA:ARBA00024984}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=H(+) + L-glutamate = 4-aminobutanoate + CO2;
CC Xref=Rhea:RHEA:17785, ChEBI:CHEBI:15378, ChEBI:CHEBI:16526,
CC ChEBI:CHEBI:29985, ChEBI:CHEBI:59888; EC=4.1.1.15;
CC Evidence={ECO:0000256|ARBA:ARBA00000018,
CC ECO:0000256|RuleBase:RU361171};
CC -!- COFACTOR:
CC Name=pyridoxal 5'-phosphate; Xref=ChEBI:CHEBI:597326;
CC Evidence={ECO:0000256|ARBA:ARBA00001933,
CC ECO:0000256|PIRSR:PIRSR602129-50, ECO:0000256|RuleBase:RU000382};
CC -!- SIMILARITY: Belongs to the group II decarboxylase family.
CC {ECO:0000256|RuleBase:RU000382}.
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DR EMBL; CU928161; CAR05140.1; -; Genomic_DNA.
DR RefSeq; WP_000372259.1; NC_011742.1.
DR AlphaFoldDB; B7MEL9; -.
DR KEGG; ecz:ECS88_3930; -.
DR HOGENOM; CLU_019582_0_0_6; -.
DR OMA; IIWRDES; -.
DR Proteomes; UP000000747; Chromosome.
DR GO; GO:0004351; F:glutamate decarboxylase activity; IEA:UniProtKB-EC.
DR GO; GO:0030170; F:pyridoxal phosphate binding; IEA:InterPro.
DR GO; GO:0006536; P:glutamate metabolic process; IEA:InterPro.
DR CDD; cd06450; DOPA_deC_like; 1.
DR Gene3D; 3.90.1150.160; -; 1.
DR Gene3D; 4.10.280.50; -; 1.
DR Gene3D; 3.40.640.10; Type I PLP-dependent aspartate aminotransferase-like (Major domain); 1.
DR InterPro; IPR010107; Glutamate_decarboxylase.
DR InterPro; IPR002129; PyrdxlP-dep_de-COase.
DR InterPro; IPR015424; PyrdxlP-dep_Trfase.
DR InterPro; IPR015421; PyrdxlP-dep_Trfase_major.
DR InterPro; IPR021115; Pyridoxal-P_BS.
DR NCBIfam; TIGR01788; Glu-decarb-GAD; 1.
DR PANTHER; PTHR43321; GLUTAMATE DECARBOXYLASE; 1.
DR PANTHER; PTHR43321:SF3; GLUTAMATE DECARBOXYLASE; 1.
DR Pfam; PF00282; Pyridoxal_deC; 1.
DR SUPFAM; SSF53383; PLP-dependent transferases; 1.
DR PROSITE; PS00392; DDC_GAD_HDC_YDC; 1.
PE 3: Inferred from homology;
KW Decarboxylase {ECO:0000256|RuleBase:RU361171};
KW Lyase {ECO:0000256|ARBA:ARBA00023239, ECO:0000256|RuleBase:RU000382};
KW Pyridoxal phosphate {ECO:0000256|PIRSR:PIRSR602129-50,
KW ECO:0000256|RuleBase:RU000382};
KW Reference proteome {ECO:0000313|Proteomes:UP000000747}.
FT MOD_RES 276
FT /note="N6-(pyridoxal phosphate)lysine"
FT /evidence="ECO:0000256|PIRSR:PIRSR602129-50"
SQ SEQUENCE 466 AA; 52684 MW; 80BF814512F178C2 CRC64;
MDQKLLTDFR SELLDSRFGA KAISTIAESK RFPLHEMRDD VAFQIINDEL YLDGNARQNL
ATFCQTWDDE NVHKLMDLSI NKNWIDKEEY PQSAAIDLRC VNMVADLWHA PAPKNGQAVG
TNTIGSSEAC MLGGMAMKWR WRKRMEAAGK PTNKPNLVCG PVQICWHKFA RYWDVELREI
PMRPGQLFMD PKRMIEACDE NTIGVVPTFG VTYTGNYEFP QPLHDALDKF QADTGIDIDM
HIDAASGGFL APFVAPDIVW DFRLPRVKSI SASGHKFGLA PLGCGWVIWR DEEALPQELV
FNVDYLGGQI GTFAINFSRP AGQVIAQYYE FLRLGREGYT KVQNASYQVA AYLADEIAKL
GPYEFICTGR PDEGIPAVCF KLKDGEDPGY TLYDLSERLR LRGWQVPAFT LGGEATDIVV
MRIMCRRGFE MDFAELLLED YKASLKYLSD HPKLQGIAQQ NSFKHT
//