ID   SPEA_PROMS              Reviewed;         648 AA.
AC   A2BNH3;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   20-FEB-2007, sequence version 1.
DT   03-AUG-2022, entry version 89.
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=A9601_00461;
OS   Prochlorococcus marinus (strain AS9601).
OC   Bacteria; Cyanobacteria; Synechococcales; Prochlorococcaceae;
OC   Prochlorococcus.
OX   NCBI_TaxID=146891;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=AS9601;
RX   PubMed=18159947; DOI=10.1371/journal.pgen.0030231;
RA   Kettler G.C., Martiny A.C., Huang K., Zucker J., Coleman M.L., Rodrigue S.,
RA   Chen F., Lapidus A., Ferriera S., Johnson J., Steglich C., Church G.M.,
RA   Richardson P., Chisholm S.W.;
RT   "Patterns and implications of gene gain and loss in the evolution of
RT   Prochlorococcus.";
RL   PLoS Genet. 3:2515-2528(2007).
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; CP000551; ABM69334.1; -; Genomic_DNA.
DR   RefSeq; WP_011817524.1; NC_008816.1.
DR   AlphaFoldDB; A2BNH3; -.
DR   SMR; A2BNH3; -.
DR   STRING; 146891.A9601_00461; -.
DR   EnsemblBacteria; ABM69334; ABM69334; A9601_00461.
DR   KEGG; pmb:A9601_00461; -.
DR   eggNOG; COG1166; Bacteria.
DR   HOGENOM; CLU_027243_1_0_3; -.
DR   OMA; AVEYTQH; -.
DR   OrthoDB; 164471at2; -.
DR   UniPathway; UPA00186; UER00284.
DR   Proteomes; UP000002590; 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: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   Pyridoxal phosphate; Spermidine biosynthesis.
FT   CHAIN           1..648
FT                   /note="Biosynthetic arginine decarboxylase"
FT                   /id="PRO_1000024262"
FT   BINDING         291..301
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01417"
FT   MOD_RES         109
FT                   /note="N6-(pyridoxal phosphate)lysine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01417"
SQ   SEQUENCE   648 AA;  73411 MW;  EEB5C31FA2471039 CRC64;
     MTNFEPKKFK NIWTIEDSIS SYNIDKWGDK YFSINSKGNI SVTKDIKSEN KIDLFKLVKE
     LKSREINPPL IIRFNDILKD RINALHDSFL KAIKTYKYKN IYQGVFPVKC NQQKNVLEKI
     IEFGSQWNFG LEVGSKSELL IGLALLENQN SLLICNGYKD KKYIEIATLA RKLGKNPIIV
     IEQRDEVKRI IQAVQELKAT PLIGIRAKLS SKSSGRWGKS IGDNSKFGLS IPEIMLTIKE
     LKEANLINEM KLLHFHIGSQ ISDIAVIKDA LQEASQIYVE LCKLGAPMQY IDVGGGLGID
     FDGTKTSSNT STNYSLQNYA NDVIATIKDS CELNNIKHPT IISESGRAII SHCSVLIFNV
     LGTSHVSSKL QIFDKKNQQL IISNLLDTFY ELKKLKNKKI NLSQIIELWN DAKKFKEDCL
     VAFRLGFLSL AERAYAEELT WACAKEISNN LNNDEINHPD LSEITETLAS TYYANLSIFK
     SIPDSWAINQ IFPIVPIHRH LEEPFCKGNF ADLTCDSDGK LNNFIDNGKI KSLLNLHKPE
     EDKDYLIGIF MTGAYQEALG NLHNLFGSTN VVHIDINQDN SYKVRNIIKE DSKSEILQLL
     DYSSASLVES IRINTESAID QKKLTIEEAR KLMDQIEISL RKSSYLSE