ID   Q3MEQ0_TRIV2            Unreviewed;       464 AA.
AC   Q3MEQ0;
DT   25-OCT-2005, integrated into UniProtKB/TrEMBL.
DT   25-OCT-2005, sequence version 1.
DT   27-MAR-2024, entry version 119.
DE   RecName: Full=Diaminopimelate decarboxylase {ECO:0000256|HAMAP-Rule:MF_02120, ECO:0000256|RuleBase:RU003738};
DE            Short=DAP decarboxylase {ECO:0000256|HAMAP-Rule:MF_02120};
DE            Short=DAPDC {ECO:0000256|HAMAP-Rule:MF_02120};
DE            EC=4.1.1.20 {ECO:0000256|HAMAP-Rule:MF_02120, ECO:0000256|RuleBase:RU003738};
GN   Name=lysA {ECO:0000256|HAMAP-Rule:MF_02120};
GN   OrderedLocusNames=Ava_0912 {ECO:0000313|EMBL:ABA20536.1};
OS   Trichormus variabilis (strain ATCC 29413 / PCC 7937) (Anabaena variabilis).
OC   Bacteria; Cyanobacteriota; Cyanophyceae; Nostocales; Nostocaceae;
OC   Trichormus.
OX   NCBI_TaxID=240292 {ECO:0000313|EMBL:ABA20536.1, ECO:0000313|Proteomes:UP000002533};
RN   [1] {ECO:0000313|Proteomes:UP000002533}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 29413 / PCC 7937 {ECO:0000313|Proteomes:UP000002533};
RX   PubMed=25197444; DOI=10.4056/sigs.3899418;
RA   Thiel T., Pratte B.S., Zhong J., Goodwin L., Copeland A., Lucas S., Han C.,
RA   Pitluck S., Land M.L., Kyrpides N.C., Woyke T.;
RT   "Complete genome sequence of Anabaena variabilis ATCC 29413.";
RL   Stand. Genomic Sci. 9:562-573(2014).
CC   -!- FUNCTION: Specifically catalyzes the decarboxylation of meso-
CC       diaminopimelate (meso-DAP) to L-lysine. {ECO:0000256|HAMAP-
CC       Rule:MF_02120}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=H(+) + meso-2,6-diaminoheptanedioate = CO2 + L-lysine;
CC         Xref=Rhea:RHEA:15101, ChEBI:CHEBI:15378, ChEBI:CHEBI:16526,
CC         ChEBI:CHEBI:32551, ChEBI:CHEBI:57791; EC=4.1.1.20;
CC         Evidence={ECO:0000256|HAMAP-Rule:MF_02120,
CC         ECO:0000256|RuleBase:RU003738};
CC   -!- COFACTOR:
CC       Name=pyridoxal 5'-phosphate; Xref=ChEBI:CHEBI:597326;
CC         Evidence={ECO:0000256|ARBA:ARBA00001933, ECO:0000256|HAMAP-
CC         Rule:MF_02120, ECO:0000256|PIRSR:PIRSR600183-50,
CC         ECO:0000256|RuleBase:RU003738};
CC   -!- PATHWAY: Amino-acid biosynthesis; L-lysine biosynthesis via DAP
CC       pathway; L-lysine from DL-2,6-diaminopimelate: step 1/1.
CC       {ECO:0000256|HAMAP-Rule:MF_02120, ECO:0000256|RuleBase:RU003738}.
CC   -!- SUBUNIT: Homodimer. {ECO:0000256|HAMAP-Rule:MF_02120}.
CC   -!- SIMILARITY: Belongs to the Orn/Lys/Arg decarboxylase class-II family.
CC       LysA subfamily. {ECO:0000256|HAMAP-Rule:MF_02120}.
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DR   EMBL; CP000117; ABA20536.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q3MEQ0; -.
DR   STRING; 240292.Ava_0912; -.
DR   KEGG; ava:Ava_0912; -.
DR   eggNOG; COG0019; Bacteria.
DR   HOGENOM; CLU_026444_0_1_3; -.
DR   UniPathway; UPA00034; UER00027.
DR   Proteomes; UP000002533; Chromosome.
DR   GO; GO:0008836; F:diaminopimelate decarboxylase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0030170; F:pyridoxal phosphate binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0009089; P:lysine biosynthetic process via diaminopimelate; IEA:UniProtKB-UniRule.
DR   CDD; cd06828; PLPDE_III_DapDC; 1.
DR   Gene3D; 3.20.20.10; Alanine racemase; 1.
DR   HAMAP; MF_02120; LysA; 1.
DR   InterPro; IPR009006; Ala_racemase/Decarboxylase_C.
DR   InterPro; IPR002986; DAP_deCOOHase_LysA.
DR   InterPro; IPR022643; De-COase2_C.
DR   InterPro; IPR022657; De-COase2_CS.
DR   InterPro; IPR022644; De-COase2_N.
DR   InterPro; IPR000183; Orn/DAP/Arg_de-COase.
DR   InterPro; IPR029066; PLP-binding_barrel.
DR   NCBIfam; TIGR01048; lysA; 1.
DR   PANTHER; PTHR43727; DIAMINOPIMELATE DECARBOXYLASE; 1.
DR   PANTHER; PTHR43727:SF2; DIAMINOPIMELATE DECARBOXYLASE 1, CHLOROPLASTIC-RELATED; 1.
DR   Pfam; PF02784; Orn_Arg_deC_N; 1.
DR   Pfam; PF00278; Orn_DAP_Arg_deC; 1.
DR   PRINTS; PR01181; DAPDCRBXLASE.
DR   PRINTS; PR01179; ODADCRBXLASE.
DR   SUPFAM; SSF50621; Alanine racemase C-terminal domain-like; 1.
DR   SUPFAM; SSF51419; PLP-binding barrel; 1.
DR   PROSITE; PS00879; ODR_DC_2_2; 1.
PE   3: Inferred from homology;
KW   Amino-acid biosynthesis {ECO:0000256|HAMAP-Rule:MF_02120};
KW   Decarboxylase {ECO:0000256|HAMAP-Rule:MF_02120,
KW   ECO:0000256|RuleBase:RU003738};
KW   Lyase {ECO:0000256|HAMAP-Rule:MF_02120, ECO:0000256|RuleBase:RU003738};
KW   Lysine biosynthesis {ECO:0000256|HAMAP-Rule:MF_02120,
KW   ECO:0000256|RuleBase:RU003738};
KW   Pyridoxal phosphate {ECO:0000256|HAMAP-Rule:MF_02120,
KW   ECO:0000256|PIRSR:PIRSR600183-50}.
FT   DOMAIN          83..324
FT                   /note="Orn/DAP/Arg decarboxylase 2 N-terminal"
FT                   /evidence="ECO:0000259|Pfam:PF02784"
FT   DOMAIN          325..415
FT                   /note="Orn/DAP/Arg decarboxylase 2 C-terminal"
FT                   /evidence="ECO:0000259|Pfam:PF00278"
FT   REGION          1..29
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   ACT_SITE        388
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR600183-50"
FT   BINDING         275
FT                   /ligand="pyridoxal 5'-phosphate"
FT                   /ligand_id="ChEBI:CHEBI:597326"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_02120"
FT   BINDING         317..320
FT                   /ligand="pyridoxal 5'-phosphate"
FT                   /ligand_id="ChEBI:CHEBI:597326"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_02120"
FT   BINDING         320
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_02120"
FT   BINDING         357
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_02120"
FT   BINDING         361
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_02120"
FT   BINDING         389
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_02120"
FT   BINDING         417
FT                   /ligand="pyridoxal 5'-phosphate"
FT                   /ligand_id="ChEBI:CHEBI:597326"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_02120"
FT   BINDING         417
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_02120"
FT   MOD_RES         98
FT                   /note="N6-(pyridoxal phosphate)lysine"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_02120,
FT                   ECO:0000256|PIRSR:PIRSR600183-50"
SQ   SEQUENCE   464 AA;  50665 MW;  0027FB30BE673B0B CRC64;
     MVSTHPAGVQ DAGTQYLPQR RNTNTNISPN QELLPLTAKA NSQGNLEIGG CDVTTLVEQF
     GSPLYILDEE TLRTACQQYR DGFQKYYPGE SQVLYASKAW NCLAVCAIAG SEGLGIDVVS
     GGELYTALAA GVSPAKIYLH GNNKSREELI LAIESGVTIV ADNWYELRTL ASLTHTDQPV
     RIMLRLTPGI ECHTHEYIRT GHLDSKFGFD PNDLAEVFEF VSQQPNLNCV GLHAHIGSQI
     FERQPHRDLA AVMVQWLRDA NKYGLNVTEL NVGGGLGIKY VESDDPPSID EWVKAICEVV
     QSACAAENLP LPKLLSEPGR SLIATSCVTA YTVGSSKTIP EIRTYVSIDG GMSDNPRPIT
     YQSVYRAVIA NKLSVSHTET VTIAGKHCES GDILIKNAQL PKTEPGDILV VMATGAYNYS
     MASNYNRLPR PAAVVVANGE ANLILQRETY QDLIRQDCLP ERLK
//