ID A0A1I6DX89_9FIRM Unreviewed; 365 AA.
AC A0A1I6DX89;
DT 22-NOV-2017, integrated into UniProtKB/TrEMBL.
DT 22-NOV-2017, sequence version 1.
DT 27-MAR-2024, entry version 21.
DE RecName: Full=Aminodeoxyfutalosine synthase {ECO:0000256|HAMAP-Rule:MF_00993};
DE Short=AFL synthase {ECO:0000256|HAMAP-Rule:MF_00993};
DE Short=Aminofutalosine synthase {ECO:0000256|HAMAP-Rule:MF_00993};
DE EC=2.5.1.120 {ECO:0000256|HAMAP-Rule:MF_00993};
DE AltName: Full=Menaquinone biosynthetic enzyme MqnE {ECO:0000256|HAMAP-Rule:MF_00993};
GN Name=mqnE {ECO:0000256|HAMAP-Rule:MF_00993};
GN ORFNames=SAMN05660706_12022 {ECO:0000313|EMBL:SFR10046.1};
OS Desulfoscipio geothermicus DSM 3669.
OC Bacteria; Bacillota; Clostridia; Eubacteriales; Desulfallaceae;
OC Desulfoscipio.
OX NCBI_TaxID=1121426 {ECO:0000313|EMBL:SFR10046.1, ECO:0000313|Proteomes:UP000199584};
RN [1] {ECO:0000313|Proteomes:UP000199584}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 3669 {ECO:0000313|Proteomes:UP000199584};
RA Varghese N., Submissions S.;
RL Submitted (OCT-2016) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Radical SAM enzyme that catalyzes the addition of the
CC adenosyl radical to the double bond of 3-[(1-carboxyvinyl)oxy]benzoate,
CC leading to aminodeoxyfutalosine (AFL), a key intermediate in the
CC formation of menaquinone (MK, vitamin K2) from chorismate.
CC {ECO:0000256|HAMAP-Rule:MF_00993}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=3-[(1-carboxyvinyl)-oxy]benzoate + H2O + S-adenosyl-L-
CC methionine = 6-amino-6-deoxyfutalosine + H(+) + hydrogencarbonate +
CC L-methionine; Xref=Rhea:RHEA:33075, ChEBI:CHEBI:15377,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:17544, ChEBI:CHEBI:57844,
CC ChEBI:CHEBI:59789, ChEBI:CHEBI:64286, ChEBI:CHEBI:76981;
CC EC=2.5.1.120; Evidence={ECO:0000256|HAMAP-Rule:MF_00993};
CC -!- COFACTOR:
CC Name=[4Fe-4S] cluster; Xref=ChEBI:CHEBI:49883;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_00993};
CC Note=Binds 1 [4Fe-4S] cluster. The cluster is coordinated with 3
CC cysteines and an exchangeable S-adenosyl-L-methionine.
CC {ECO:0000256|HAMAP-Rule:MF_00993};
CC -!- PATHWAY: Quinol/quinone metabolism; menaquinone biosynthesis.
CC {ECO:0000256|HAMAP-Rule:MF_00993}.
CC -!- SIMILARITY: Belongs to the radical SAM superfamily. MqnE family.
CC {ECO:0000256|HAMAP-Rule:MF_00993}.
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DR EMBL; FOYM01000020; SFR10046.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A1I6DX89; -.
DR STRING; 39060.SAMN05660706_12022; -.
DR OrthoDB; 9802027at2; -.
DR UniPathway; UPA00079; -.
DR Proteomes; UP000199584; Unassembled WGS sequence.
DR GO; GO:0051539; F:4 iron, 4 sulfur cluster binding; IEA:UniProtKB-KW.
DR GO; GO:0102573; F:aminodeoxyfutalosine synthase activity; IEA:UniProtKB-EC.
DR GO; GO:0005506; F:iron ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0009234; P:menaquinone biosynthetic process; IEA:UniProtKB-UniRule.
DR CDD; cd01335; Radical_SAM; 1.
DR Gene3D; 3.20.20.70; Aldolase class I; 1.
DR HAMAP; MF_00993; MqnE; 1.
DR InterPro; IPR013785; Aldolase_TIM.
DR InterPro; IPR045567; CofH/MnqC-like_C.
DR InterPro; IPR006638; Elp3/MiaA/NifB-like_rSAM.
DR InterPro; IPR034405; F420.
DR InterPro; IPR020050; FO_synthase_su2.
DR InterPro; IPR022432; MqnE.
DR InterPro; IPR007197; rSAM.
DR NCBIfam; TIGR00423; CofH family radical SAM protein; 1.
DR NCBIfam; TIGR03700; mena_SCO4494; 1.
DR PANTHER; PTHR43076:SF7; AMINODEOXYFUTALOSINE SYNTHASE; 1.
DR PANTHER; PTHR43076; FO SYNTHASE (COFH); 1.
DR Pfam; PF19288; CofH_C; 1.
DR Pfam; PF04055; Radical_SAM; 1.
DR PIRSF; PIRSF004762; CHP00423; 1.
DR SFLD; SFLDG01388; 7_8-didemethyl-8-hydroxy-5-dea; 1.
DR SFLD; SFLDF00343; aminofutalosine_synthase_(mqnE; 1.
DR SFLD; SFLDF00342; cyclic_dehypoxanthine_futalosi; 1.
DR SFLD; SFLDG01389; menaquinone_synthsis_involved; 1.
DR SMART; SM00729; Elp3; 1.
DR SUPFAM; SSF102114; Radical SAM enzymes; 1.
DR PROSITE; PS51918; RADICAL_SAM; 1.
PE 3: Inferred from homology;
KW 4Fe-4S {ECO:0000256|HAMAP-Rule:MF_00993};
KW Iron {ECO:0000256|ARBA:ARBA00023004, ECO:0000256|HAMAP-Rule:MF_00993};
KW Iron-sulfur {ECO:0000256|ARBA:ARBA00023014, ECO:0000256|HAMAP-
KW Rule:MF_00993}; Menaquinone biosynthesis {ECO:0000256|HAMAP-Rule:MF_00993};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW Rule:MF_00993}; Reference proteome {ECO:0000313|Proteomes:UP000199584};
KW S-adenosyl-L-methionine {ECO:0000256|ARBA:ARBA00022691, ECO:0000256|HAMAP-
KW Rule:MF_00993}; Transferase {ECO:0000256|HAMAP-Rule:MF_00993}.
FT DOMAIN 54..289
FT /note="Radical SAM core"
FT /evidence="ECO:0000259|PROSITE:PS51918"
FT BINDING 68
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /ligand_note="4Fe-4S-S-AdoMet"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00993"
FT BINDING 72
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /ligand_note="4Fe-4S-S-AdoMet"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00993"
FT BINDING 75
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /ligand_note="4Fe-4S-S-AdoMet"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00993"
SQ SEQUENCE 365 AA; 40294 MW; 8B2353F65A38FF48 CRC64;
MHNHKGELEN IAAKVAAGER LTREDGVKLY QSNDLLAIGK MADLVRKRKN GTNTFFIVNR
HINHTNVCIN RCKLCAFGRD ANAPGAYTMS LDEIEAKARA SANSGISEIH IVGGLNPELK
LDYYVDMLQR VRRVLPGVVI QSFTAVEIDY LAQLHGMTHH AVLRALQEAG LDSLPGGGAE
IFAPRVREII CSKKINGDKW LAVHRAAHEL GMRTNATMLY GHVETIEERV DHLLRLRELQ
DRTGGFLTFI PLAFHPKNTA LEPMGLAGTT GYDDLKTLAV ARLLLDNFDH IKAFWVMVGP
KMAQVSLSFG VDDLDGTVVE EKIAHDAGAE TGQSMAKSEL VRMIKNAGFC PVQRDTLYNV
VEEGF
//
