ID A0A0C2LMU0_9CYAN Unreviewed; 594 AA.
AC A0A0C2LMU0;
DT 01-APR-2015, integrated into UniProtKB/TrEMBL.
DT 01-APR-2015, sequence version 1.
DT 24-JAN-2024, entry version 40.
DE RecName: Full=2-succinyl-5-enolpyruvyl-6-hydroxy-3-cyclohexene-1-carboxylate synthase {ECO:0000256|HAMAP-Rule:MF_01659};
DE Short=SEPHCHC synthase {ECO:0000256|HAMAP-Rule:MF_01659};
DE EC=2.2.1.9 {ECO:0000256|HAMAP-Rule:MF_01659};
GN Name=menD {ECO:0000256|HAMAP-Rule:MF_01659};
GN ORFNames=SD80_07205 {ECO:0000313|EMBL:KIJ84707.1};
OS Scytonema tolypothrichoides VB-61278.
OC Bacteria; Cyanobacteriota; Cyanophyceae; Nostocales; Scytonemataceae;
OC Scytonema.
OX NCBI_TaxID=1233231 {ECO:0000313|EMBL:KIJ84707.1};
RN [1] {ECO:0000313|EMBL:KIJ84707.1}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=VB-61278 {ECO:0000313|EMBL:KIJ84707.1};
RA Tripathy S., Das A., Panda A., Malar M.C., Adhikary S.P.;
RT "Draft genome sequence of Scytonema tolypothrichoides VB-61278.";
RL Submitted (JAN-2015) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Catalyzes the thiamine diphosphate-dependent decarboxylation
CC of 2-oxoglutarate and the subsequent addition of the resulting succinic
CC semialdehyde-thiamine pyrophosphate anion to isochorismate to yield 2-
CC succinyl-5-enolpyruvyl-6-hydroxy-3-cyclohexene-1-carboxylate (SEPHCHC).
CC {ECO:0000256|HAMAP-Rule:MF_01659}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=2-oxoglutarate + H(+) + isochorismate = 5-enolpyruvoyl-6-
CC hydroxy-2-succinyl-cyclohex-3-ene-1-carboxylate + CO2;
CC Xref=Rhea:RHEA:25593, ChEBI:CHEBI:15378, ChEBI:CHEBI:16526,
CC ChEBI:CHEBI:16810, ChEBI:CHEBI:29780, ChEBI:CHEBI:58818; EC=2.2.1.9;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01659};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01659};
CC Name=Mn(2+); Xref=ChEBI:CHEBI:29035;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01659};
CC -!- COFACTOR:
CC Name=thiamine diphosphate; Xref=ChEBI:CHEBI:58937;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01659};
CC Note=Binds 1 thiamine pyrophosphate per subunit. {ECO:0000256|HAMAP-
CC Rule:MF_01659};
CC -!- PATHWAY: Cofactor biosynthesis; phylloquinone biosynthesis.
CC {ECO:0000256|HAMAP-Rule:MF_01659}.
CC -!- PATHWAY: Quinol/quinone metabolism; 1,4-dihydroxy-2-naphthoate
CC biosynthesis; 1,4-dihydroxy-2-naphthoate from chorismate: step 2/7.
CC {ECO:0000256|HAMAP-Rule:MF_01659}.
CC -!- SUBUNIT: Homodimer. {ECO:0000256|HAMAP-Rule:MF_01659}.
CC -!- SIMILARITY: Belongs to the TPP enzyme family. MenD subfamily.
CC {ECO:0000256|HAMAP-Rule:MF_01659}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:KIJ84707.1}.
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DR EMBL; JXCA01000006; KIJ84707.1; -; Genomic_DNA.
DR STRING; 1233231.SD80_07205; -.
DR OrthoDB; 9791859at2; -.
DR UniPathway; UPA00995; -.
DR UniPathway; UPA01057; UER00164.
DR GO; GO:0070204; F:2-succinyl-5-enolpyruvyl-6-hydroxy-3-cyclohexene-1-carboxylic-acid synthase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0030145; F:manganese ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0030976; F:thiamine pyrophosphate binding; IEA:UniProtKB-UniRule.
DR GO; GO:0009234; P:menaquinone biosynthetic process; IEA:InterPro.
DR GO; GO:0042372; P:phylloquinone biosynthetic process; IEA:UniProtKB-UniRule.
DR CDD; cd07037; TPP_PYR_MenD; 1.
DR CDD; cd02009; TPP_SHCHC_synthase; 1.
DR Gene3D; 3.40.50.970; -; 2.
DR Gene3D; 3.40.50.1220; TPP-binding domain; 1.
DR HAMAP; MF_01659; MenD; 1.
DR InterPro; IPR004433; MenaQ_synth_MenD.
DR InterPro; IPR032264; MenD_middle.
DR InterPro; IPR029061; THDP-binding.
DR InterPro; IPR012001; Thiamin_PyroP_enz_TPP-bd_dom.
DR NCBIfam; TIGR00173; menD; 1.
DR PANTHER; PTHR42916; 2-SUCCINYL-5-ENOLPYRUVYL-6-HYDROXY-3-CYCLOHEXENE-1-CARBOXYLATE SYNTHASE; 1.
DR PANTHER; PTHR42916:SF1; PROTEIN PHYLLO, CHLOROPLASTIC; 1.
DR Pfam; PF16582; TPP_enzyme_M_2; 1.
DR Pfam; PF02776; TPP_enzyme_N; 1.
DR PIRSF; PIRSF004983; MenD; 1.
DR SUPFAM; SSF52518; Thiamin diphosphate-binding fold (THDP-binding); 2.
PE 3: Inferred from homology;
KW Magnesium {ECO:0000256|HAMAP-Rule:MF_01659};
KW Manganese {ECO:0000256|ARBA:ARBA00023211, ECO:0000256|HAMAP-Rule:MF_01659};
KW Metal-binding {ECO:0000256|HAMAP-Rule:MF_01659};
KW Thiamine pyrophosphate {ECO:0000256|HAMAP-Rule:MF_01659};
KW Transferase {ECO:0000256|HAMAP-Rule:MF_01659}.
FT DOMAIN 15..126
FT /note="Thiamine pyrophosphate enzyme N-terminal TPP-
FT binding"
FT /evidence="ECO:0000259|Pfam:PF02776"
FT DOMAIN 232..423
FT /note="Menaquinone biosynthesis protein MenD middle"
FT /evidence="ECO:0000259|Pfam:PF16582"
SQ SEQUENCE 594 AA; 66387 MW; 727112A529E3BA18 CRC64;
MVIDFRNINT VWASIAAQTL KRLGLTCVVI CPGSRSTPLA VAFAQQSDDI EAISILDERS
AAFFALGQAK ATGRPTVVVC TSGTAGANFY PAVIEAKESR VPLLLFTTDR PPELRDCHSG
QTITQLKLYG NYPNWQTELA IPSVDMQMLA YLRQTMIHAW ERSQTPVPGP VHLNFPFRDP
LAPIPDVEML HTISLQLLES QFDTEDFFSH ITTTSPPFHI PISSPIPFQE WLKSQRGIII
AGVGQPQRPE EYCGAIAQLS KTLKFPVLAE GLSPVRNYAD QNPYIISTYD LILRNQELAK
QLAPEVVIQI GEIPTSKELR NWLASTQAQR WIIDKSDQNL DPLHGKTIHL RISIEELNRW
SNQEAPGEIT PSFPSSYLQL WCTAEAKLRA SVDQTLATIE DLFEGKAAWL LSQTLPPRTP
IFIANSMPVR DVEFFWKPTH SQVQPFFNRG ANGIDGTLST ALGIAHRQQS SVMLTGDLAL
LHDTNGFLMR NKFVGHLTIV LINNNGGGIF EMLSISKFEP PFEEFFATPQ DIDFAQLSAT
YGVEYELITS WKQLLSRLNP LPSKGIRVLE LRTNRKADAK WRKENLGKFA VDLA
//
