ID   SPEA_KLEP3              Reviewed;         632 AA.
AC   B5XUB1;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   25-NOV-2008, sequence version 1.
DT   03-AUG-2022, entry version 70.
DE   RecName: Full=Biosynthetic arginine decarboxylase {ECO:0000255|HAMAP-Rule:MF_01417};
DE            Short=ADC {ECO:0000255|HAMAP-Rule:MF_01417};
DE            EC=4.1.1.19 {ECO:0000255|HAMAP-Rule:MF_01417};
GN   Name=speA {ECO:0000255|HAMAP-Rule:MF_01417}; OrderedLocusNames=KPK_0737;
OS   Klebsiella pneumoniae (strain 342).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Klebsiella/Raoultella group; Klebsiella.
OX   NCBI_TaxID=507522;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=342;
RX   PubMed=18654632; DOI=10.1371/journal.pgen.1000141;
RA   Fouts D.E., Tyler H.L., DeBoy R.T., Daugherty S., Ren Q., Badger J.H.,
RA   Durkin A.S., Huot H., Shrivastava S., Kothari S., Dodson R.J., Mohamoud Y.,
RA   Khouri H., Roesch L.F.W., Krogfelt K.A., Struve C., Triplett E.W.,
RA   Methe B.A.;
RT   "Complete genome sequence of the N2-fixing broad host range endophyte
RT   Klebsiella pneumoniae 342 and virulence predictions verified in mice.";
RL   PLoS Genet. 4:E1000141-E1000141(2008).
CC   -!- FUNCTION: Catalyzes the biosynthesis of agmatine from arginine.
CC       {ECO:0000255|HAMAP-Rule:MF_01417}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=H(+) + L-arginine = agmatine + CO2; Xref=Rhea:RHEA:17641,
CC         ChEBI:CHEBI:15378, ChEBI:CHEBI:16526, ChEBI:CHEBI:32682,
CC         ChEBI:CHEBI:58145; EC=4.1.1.19; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_01417};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01417};
CC   -!- COFACTOR:
CC       Name=pyridoxal 5'-phosphate; Xref=ChEBI:CHEBI:597326;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01417};
CC   -!- PATHWAY: Amine and polyamine biosynthesis; agmatine biosynthesis;
CC       agmatine from L-arginine: step 1/1. {ECO:0000255|HAMAP-Rule:MF_01417}.
CC   -!- SIMILARITY: Belongs to the Orn/Lys/Arg decarboxylase class-II family.
CC       SpeA subfamily. {ECO:0000255|HAMAP-Rule:MF_01417}.
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DR   EMBL; CP000964; ACI09897.1; -; Genomic_DNA.
DR   AlphaFoldDB; B5XUB1; -.
DR   SMR; B5XUB1; -.
DR   EnsemblBacteria; ACI09897; ACI09897; KPK_0737.
DR   KEGG; kpe:KPK_0737; -.
DR   HOGENOM; CLU_027243_1_0_6; -.
DR   OMA; AVEYTQH; -.
DR   UniPathway; UPA00186; UER00284.
DR   Proteomes; UP000001734; Chromosome.
DR   GO; GO:0008792; F:arginine decarboxylase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0006527; P:arginine catabolic process; IEA:InterPro.
DR   GO; GO:0009446; P:putrescine biosynthetic process; IEA:UniProtKB-UniRule.
DR   GO; GO:0008295; P:spermidine biosynthetic process; IEA:UniProtKB-UniRule.
DR   CDD; cd06830; PLPDE_III_ADC; 1.
DR   Gene3D; 2.40.37.10; -; 1.
DR   Gene3D; 3.20.20.10; -; 1.
DR   HAMAP; MF_01417; SpeA; 1.
DR   InterPro; IPR009006; Ala_racemase/Decarboxylase_C.
DR   InterPro; IPR040634; Arg_decarb_HB.
DR   InterPro; IPR041128; Arg_decarbox_C.
DR   InterPro; IPR002985; Arg_decrbxlase.
DR   InterPro; IPR022657; De-COase2_CS.
DR   InterPro; IPR022644; De-COase2_N.
DR   InterPro; IPR022653; De-COase2_pyr-phos_BS.
DR   InterPro; IPR000183; Orn/DAP/Arg_de-COase.
DR   InterPro; IPR029066; PLP-binding_barrel.
DR   PANTHER; PTHR43295; PTHR43295; 1.
DR   Pfam; PF17810; Arg_decarb_HB; 1.
DR   Pfam; PF17944; Arg_decarbox_C; 1.
DR   Pfam; PF02784; Orn_Arg_deC_N; 1.
DR   PIRSF; PIRSF001336; Arg_decrbxlase; 1.
DR   PRINTS; PR01180; ARGDCRBXLASE.
DR   PRINTS; PR01179; ODADCRBXLASE.
DR   SUPFAM; SSF50621; SSF50621; 1.
DR   SUPFAM; SSF51419; SSF51419; 1.
DR   TIGRFAMs; TIGR01273; speA; 1.
DR   PROSITE; PS00878; ODR_DC_2_1; 1.
DR   PROSITE; PS00879; ODR_DC_2_2; 1.
PE   3: Inferred from homology;
KW   Decarboxylase; Lyase; Magnesium; Metal-binding; Polyamine biosynthesis;
KW   Putrescine biosynthesis; Pyridoxal phosphate; Spermidine biosynthesis.
FT   CHAIN           1..632
FT                   /note="Biosynthetic arginine decarboxylase"
FT                   /id="PRO_1000145596"
FT   BINDING         281..291
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01417"
FT   MOD_RES         101
FT                   /note="N6-(pyridoxal phosphate)lysine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01417"
SQ   SEQUENCE   632 AA;  71019 MW;  88D8AAF64F44DB44 CRC64;
     MSSQEASKML RTYNIAWWGN NYYDVNELGH ISVCPDPDVP EARVDLAELV KAREAQGQRL
     PALFCFPQIL QHRLRSINAA FKRARESYGY NGDYFLVYPI KVNQHRRVIE SLIHSGEPLG
     LEAGSKAELM AVLAHAGMTR SVIVCNGYKD REYIRLALVG EKMGHKVYLV IEKMSEIAIV
     LEEAERLNVV PRLGVRARLA SQGSGKWQSS GGEKSKFGLA ATQVLQLVEI LRAAGHLESL
     QLLHFHLGSQ MANIRDIATG VRESARFYVE LHKLGVNIQC FDVGGGLGVD YEGTRSQSDC
     SVNYGLNEYA NNIIWAIGDA CEENGLPHPT VITESGRAVT AHHTVLVSNI IGVERNEYTE
     ATPPAEDAAR PLQSMWETWL EMHETGNRRS LREWLHDSQM DLHDIHIGYS SGTFNLQERA
     WAEQLYLNMC HEVQKQLDPS NRAHRPIIDE LQERMADKIY VNFSLFQSMP DAWGIDQLFP
     VMPLEGLNKS PERRAVLLDI TCDSDGAIDH YVDGDGIATT MPMPEYDPEN PPMLGFFMVG
     AYQEILGNMH NLFGDTEAVD VFVFPDGSVE VELSDEGDTV ADMLQYVQLD PNTLLTQFRD
     QVKNTGLDDA LQQQFLEEFE AGLYGYTYLE DE