ID A0A1V3Q9E1_9GAMM Unreviewed; 186 AA.
AC A0A1V3Q9E1;
DT 07-JUN-2017, integrated into UniProtKB/TrEMBL.
DT 07-JUN-2017, sequence version 1.
DT 27-MAR-2024, entry version 25.
DE RecName: Full=Acireductone dioxygenase {ECO:0000256|HAMAP-Rule:MF_01682};
DE AltName: Full=1,2-dihydroxy-3-keto-5-methylthiopentene dioxygenase {ECO:0000256|HAMAP-Rule:MF_01682};
DE Short=DHK-MTPene dioxygenase {ECO:0000256|HAMAP-Rule:MF_01682};
DE AltName: Full=Acireductone dioxygenase (Fe(2+)-requiring) {ECO:0000256|HAMAP-Rule:MF_01682};
DE Short=ARD' {ECO:0000256|HAMAP-Rule:MF_01682};
DE Short=Fe-ARD {ECO:0000256|HAMAP-Rule:MF_01682};
DE EC=1.13.11.54 {ECO:0000256|HAMAP-Rule:MF_01682};
DE AltName: Full=Acireductone dioxygenase (Ni(2+)-requiring) {ECO:0000256|HAMAP-Rule:MF_01682};
DE Short=ARD {ECO:0000256|HAMAP-Rule:MF_01682};
DE Short=Ni-ARD {ECO:0000256|HAMAP-Rule:MF_01682};
DE EC=1.13.11.53 {ECO:0000256|HAMAP-Rule:MF_01682};
GN Name=mtnD {ECO:0000256|HAMAP-Rule:MF_01682};
GN ORFNames=B0E47_00245 {ECO:0000313|EMBL:OOG61141.1};
OS Rhodanobacter sp. B05.
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Xanthomonadales;
OC Rhodanobacteraceae; Rhodanobacter.
OX NCBI_TaxID=1945859 {ECO:0000313|EMBL:OOG61141.1, ECO:0000313|Proteomes:UP000188464};
RN [1] {ECO:0000313|EMBL:OOG61141.1, ECO:0000313|Proteomes:UP000188464}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=B05 {ECO:0000313|EMBL:OOG61141.1,
RC ECO:0000313|Proteomes:UP000188464};
RA Lycus P., Bothun K.L., Bergaust L., Shapleigh J.P., Bakken L.R.,
RA Frostegard A.;
RT "Phenotypic and genotypic richness of denitrifiers revealed by a novel
RT isolation strategy.";
RL Submitted (FEB-2017) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Catalyzes 2 different reactions between oxygene and the
CC acireductone 1,2-dihydroxy-3-keto-5-methylthiopentene (DHK-MTPene)
CC depending upon the metal bound in the active site. Fe-containing
CC acireductone dioxygenase (Fe-ARD) produces formate and 2-keto-4-
CC methylthiobutyrate (KMTB), the alpha-ketoacid precursor of methionine
CC in the methionine recycle pathway. Ni-containing acireductone
CC dioxygenase (Ni-ARD) produces methylthiopropionate, carbon monoxide and
CC formate, and does not lie on the methionine recycle pathway.
CC {ECO:0000256|HAMAP-Rule:MF_01682}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=1,2-dihydroxy-5-(methylsulfanyl)pent-1-en-3-one + O2 = 3-
CC (methylsulfanyl)propanoate + CO + formate + 2 H(+);
CC Xref=Rhea:RHEA:14161, ChEBI:CHEBI:15378, ChEBI:CHEBI:15379,
CC ChEBI:CHEBI:15740, ChEBI:CHEBI:17245, ChEBI:CHEBI:49016,
CC ChEBI:CHEBI:49252; EC=1.13.11.53; Evidence={ECO:0000256|HAMAP-
CC Rule:MF_01682};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=1,2-dihydroxy-5-(methylsulfanyl)pent-1-en-3-one + O2 = 4-
CC methylsulfanyl-2-oxobutanoate + formate + 2 H(+);
CC Xref=Rhea:RHEA:24504, ChEBI:CHEBI:15378, ChEBI:CHEBI:15379,
CC ChEBI:CHEBI:15740, ChEBI:CHEBI:16723, ChEBI:CHEBI:49252;
CC EC=1.13.11.54; Evidence={ECO:0000256|ARBA:ARBA00000428,
CC ECO:0000256|HAMAP-Rule:MF_01682};
CC -!- COFACTOR:
CC Name=Fe(2+); Xref=ChEBI:CHEBI:29033;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01682};
CC Note=Binds 1 Fe(2+) cation per monomer. {ECO:0000256|HAMAP-
CC Rule:MF_01682};
CC -!- COFACTOR:
CC Name=Ni(2+); Xref=ChEBI:CHEBI:49786;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01682};
CC Note=Binds 1 nickel ion per monomer. {ECO:0000256|HAMAP-Rule:MF_01682};
CC -!- PATHWAY: Amino-acid biosynthesis; L-methionine biosynthesis via salvage
CC pathway; L-methionine from S-methyl-5-thio-alpha-D-ribose 1-phosphate:
CC step 5/6. {ECO:0000256|HAMAP-Rule:MF_01682}.
CC -!- SUBUNIT: Monomer. {ECO:0000256|HAMAP-Rule:MF_01682}.
CC -!- SIMILARITY: Belongs to the acireductone dioxygenase (ARD) family.
CC {ECO:0000256|HAMAP-Rule:MF_01682}.
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:OOG61141.1}.
CC ---------------------------------------------------------------------------
CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC ---------------------------------------------------------------------------
DR EMBL; MUNU01000003; OOG61141.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A1V3Q9E1; -.
DR STRING; 1945859.B0E47_00245; -.
DR OrthoDB; 9795636at2; -.
DR UniPathway; UPA00904; UER00878.
DR Proteomes; UP000188464; Unassembled WGS sequence.
DR GO; GO:0010308; F:acireductone dioxygenase (Ni2+-requiring) activity; IEA:UniProtKB-UniRule.
DR GO; GO:0010309; F:acireductone dioxygenase [iron(II)-requiring] activity; IEA:UniProtKB-UniRule.
DR GO; GO:0005506; F:iron ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0016151; F:nickel cation binding; IEA:UniProtKB-UniRule.
DR GO; GO:0019509; P:L-methionine salvage from methylthioadenosine; IEA:UniProtKB-UniPathway.
DR GO; GO:0019284; P:L-methionine salvage from S-adenosylmethionine; IEA:UniProtKB-UniRule.
DR CDD; cd02232; cupin_ARD; 1.
DR Gene3D; 2.60.120.10; Jelly Rolls; 1.
DR HAMAP; MF_01682; Salvage_MtnD; 1.
DR InterPro; IPR004313; ARD.
DR InterPro; IPR023956; ARD_bac.
DR InterPro; IPR014710; RmlC-like_jellyroll.
DR InterPro; IPR011051; RmlC_Cupin_sf.
DR PANTHER; PTHR23418; ACIREDUCTONE DIOXYGENASE; 1.
DR PANTHER; PTHR23418:SF0; ACIREDUCTONE DIOXYGENASE; 1.
DR Pfam; PF03079; ARD; 1.
DR SUPFAM; SSF51182; RmlC-like cupins; 1.
PE 3: Inferred from homology;
KW Amino-acid biosynthesis {ECO:0000256|ARBA:ARBA00022605, ECO:0000256|HAMAP-
KW Rule:MF_01682};
KW Dioxygenase {ECO:0000256|ARBA:ARBA00022964, ECO:0000256|HAMAP-
KW Rule:MF_01682};
KW Iron {ECO:0000256|ARBA:ARBA00023004, ECO:0000256|HAMAP-Rule:MF_01682};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW Rule:MF_01682};
KW Methionine biosynthesis {ECO:0000256|ARBA:ARBA00023167, ECO:0000256|HAMAP-
KW Rule:MF_01682};
KW Nickel {ECO:0000256|ARBA:ARBA00022596, ECO:0000256|HAMAP-Rule:MF_01682};
KW Oxidoreductase {ECO:0000256|ARBA:ARBA00023002, ECO:0000256|HAMAP-
KW Rule:MF_01682}; Reference proteome {ECO:0000313|Proteomes:UP000188464}.
FT BINDING 97
FT /ligand="Fe(2+)"
FT /ligand_id="ChEBI:CHEBI:29033"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01682"
FT BINDING 97
FT /ligand="Ni(2+)"
FT /ligand_id="ChEBI:CHEBI:49786"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01682"
FT BINDING 99
FT /ligand="Fe(2+)"
FT /ligand_id="ChEBI:CHEBI:29033"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01682"
FT BINDING 99
FT /ligand="Ni(2+)"
FT /ligand_id="ChEBI:CHEBI:49786"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01682"
FT BINDING 103
FT /ligand="Fe(2+)"
FT /ligand_id="ChEBI:CHEBI:29033"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01682"
FT BINDING 103
FT /ligand="Ni(2+)"
FT /ligand_id="ChEBI:CHEBI:49786"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01682"
FT BINDING 141
FT /ligand="Fe(2+)"
FT /ligand_id="ChEBI:CHEBI:29033"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01682"
FT BINDING 141
FT /ligand="Ni(2+)"
FT /ligand_id="ChEBI:CHEBI:49786"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01682"
FT SITE 96
FT /note="May play a role in metal incorporation in vivo"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01682"
FT SITE 102
FT /note="May play a role in transmitting local conformational
FT changes"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01682"
FT SITE 105
FT /note="Important to generate the dianion"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01682"
SQ SEQUENCE 186 AA; 20848 MW; 94EA1C49D2F5B2FB CRC64;
MSRLRIFDEN EPQTARLTLG EHAAIAAELG KVGIRFEQWQ ASQPIVPGAS QDEVIAAYRS
DIDRLMKEKG YQAVDVISLA PDHPDRATLR QKFLSEHTHS EDEVRFFVAG SGQFTLHIDG
KVYDILCEQG DLIGVPDGTR HWFDMSESPS FVAIRLFTNK EGWVASFTGD DIATRFPRMA
PAIRNS
//
