ID   SPEA_HAMD5              Reviewed;         633 AA.
AC   C4K6F4;
DT   22-SEP-2009, integrated into UniProtKB/Swiss-Prot.
DT   07-JUL-2009, sequence version 1.
DT   03-AUG-2022, entry version 66.
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=HDEF_1524;
OS   Hamiltonella defensa subsp. Acyrthosiphon pisum (strain 5AT).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; aphid secondary symbionts; Candidatus Hamiltonella.
OX   NCBI_TaxID=572265;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=5AT;
RX   PubMed=19451630; DOI=10.1073/pnas.0900194106;
RA   Degnan P.H., Yu Y., Sisneros N., Wing R.A., Moran N.A.;
RT   "Hamiltonella defensa, genome evolution of protective bacterial
RT   endosymbiont from pathogenic ancestors.";
RL   Proc. Natl. Acad. Sci. U.S.A. 106:9063-9068(2009).
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; CP001277; ACQ68147.1; -; Genomic_DNA.
DR   AlphaFoldDB; C4K6F4; -.
DR   SMR; C4K6F4; -.
DR   STRING; 572265.HDEF_1524; -.
DR   EnsemblBacteria; ACQ68147; ACQ68147; HDEF_1524.
DR   KEGG; hde:HDEF_1524; -.
DR   eggNOG; COG1166; Bacteria.
DR   HOGENOM; CLU_027243_1_0_6; -.
DR   OMA; AVEYTQH; -.
DR   UniPathway; UPA00186; UER00284.
DR   Proteomes; UP000002334; 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; Reference proteome;
KW   Spermidine biosynthesis.
FT   CHAIN           1..633
FT                   /note="Biosynthetic arginine decarboxylase"
FT                   /id="PRO_1000215248"
FT   BINDING         282..292
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01417"
FT   MOD_RES         102
FT                   /note="N6-(pyridoxal phosphate)lysine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01417"
SQ   SEQUENCE   633 AA;  71505 MW;  444A0217E53529B2 CRC64;
     MNDRHAEKIR RAYNVAYWGN DYFYINDLGH ICVRPNPEVS QSSIDLAELL KEKEGKNPQP
     LPALFFFPQI LQHRLHAINK AFKSARDSFG YQGDYCLVYP IKVNQHRRVI ESLLKSGESL
     GLEAGSKAEM VAVLAYAGGT RSLIVCNGYK DREYIRLALM GEKLGYKVYL VIEKMSEIKM
     VLEEAKRLNV VPRLGVRARL ASEGSGKWQA SGGEKSKFGL SATQVLQLVE ILKSADCLSG
     LQLLHFHLGS QLSNIHDIAT GVRESARFYV ELHKLGVKIS CFDVGGGLGV DYEGTRSQSD
     CSVNYGLKEY ANNVIWGIGE ICNENHLPHP TVISESGRAL TAHHTVLISN VIGVERNEFS
     PPQAPEKHSP RALESLWYTW QEMQKPDHRH SLRECLHDSQ RDLQDVHTQY THGILDLKQR
     AWAEQLYLQI CHHIQKELDP SDRAHRTMID NLQERMADKL YVNFSLFQSL PDAWGINQLF
     PILPLEGLNQ RPERRAVLLD ITCDSDGIIE HYVDGDGVAN TLPIPPYDAE NPPILGFFMV
     GAYQEILGNM HNLFGDTAVV EVSLDEQEKI SVKIDNPGNT VSDMLKYVKL DPKALLAYFA
     QKIKKTDLNA QLQMAFLEEF EASLYGYTYL EHD