ID   Q1R586_ECOUT            Unreviewed;       487 AA.
AC   Q1R586;
DT   16-MAY-2006, integrated into UniProtKB/TrEMBL.
DT   16-MAY-2006, sequence version 1.
DT   27-MAR-2024, entry version 108.
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:ABE09478.1};
GN   OrderedLocusNames=UTI89_C4049 {ECO:0000313|EMBL:ABE09478.1};
OS   Escherichia coli (strain UTI89 / UPEC).
OC   Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=364106 {ECO:0000313|EMBL:ABE09478.1, ECO:0000313|Proteomes:UP000001952};
RN   [1] {ECO:0000313|EMBL:ABE09478.1, ECO:0000313|Proteomes:UP000001952}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=UTI89 / UPEC {ECO:0000313|Proteomes:UP000001952};
RX   PubMed=16585510; DOI=10.1073/pnas.0600938103;
RA   Chen S.L., Hung C.S., Xu J., Reigstad C.S., Magrini V., Sabo A.,
RA   Blasiar D., Bieri T., Meyer R.R., Ozersky P., Armstrong J.R., Fulton R.S.,
RA   Latreille J.P., Spieth J., Hooton T.M., Mardis E.R., Hultgren S.J.,
RA   Gordon J.I.;
RT   "Identification of genes subject to positive selection in uropathogenic
RT   strains of Escherichia coli: a comparative genomics approach.";
RL   Proc. Natl. Acad. Sci. U.S.A. 103:5977-5982(2006).
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; CP000243; ABE09478.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q1R586; -.
DR   KEGG; eci:UTI89_C4049; -.
DR   HOGENOM; CLU_019582_2_1_6; -.
DR   Proteomes; UP000001952; 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}.
FT   MOD_RES         297
FT                   /note="N6-(pyridoxal phosphate)lysine"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR602129-50"
SQ   SEQUENCE   487 AA;  55201 MW;  DF925137BA525680 CRC64;
     MLPLRINPTF LLPSNKFKEF EMDQKLLTDF RSELLDSRFG AKAISTIAES KRFPLHEMRD
     DVAFQIINDE LYLDGNARQN LATFCQTWDD ENVHKLMDLS INKNWIDKEE YPQSAAIDLR
     CVNMVADLWH APAPKNGQAV GTNTIGSSEA CMLGGMAMKW RWRKRMEAAG KPTNKPNLVC
     GPVQICWHKF ARYWDVELRE IPMRPGQLFM DPKRMIEACD ENTIGVVPTF GVTYTGNYEF
     PQPLHDALDK FQADTGIDID MHIDAASGGF LAPFVAPDIV WDFRLPRVKS ISASGHKFGL
     APLGCGWVIW RDEEALPQEL VFNVDYLGGQ IGTFAINFSR PAGQVIAQYY EFLRLGREGY
     TKVQNASYQV AAYLADEIAK LGPYEFICTG RPDEGIPAVC FKLKDGEDPG YTLYDLSERL
     RLRGWQVPAF TLGGEATDIV VMRIMCRRGF EMDFAELLLE DYKASLKYLS DHPKLQGIAQ
     QNSFKHT
//