ID A0A1Q5LQ10_9ACTN Unreviewed; 192 AA.
AC A0A1Q5LQ10;
DT 12-APR-2017, integrated into UniProtKB/TrEMBL.
DT 12-APR-2017, sequence version 1.
DT 27-MAR-2024, entry version 33.
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=AMK33_24005 {ECO:0000313|EMBL:OKK04000.1};
OS Streptomyces sp. CB02400.
OC Bacteria; Actinomycetota; Actinomycetes; Kitasatosporales;
OC Streptomycetaceae; Streptomyces.
OX NCBI_TaxID=1703944 {ECO:0000313|EMBL:OKK04000.1, ECO:0000313|Proteomes:UP000185993};
RN [1] {ECO:0000313|EMBL:OKK04000.1, ECO:0000313|Proteomes:UP000185993}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CB02400 {ECO:0000313|EMBL:OKK04000.1,
RC ECO:0000313|Proteomes:UP000185993};
RX PubMed=27999165; DOI=10.1128/mbio.02104-16;
RA Yan X., Ge H., Huang T., Hindra, Yang D., Teng Q., Crnovcic I., Li X.,
RA Rudolf J.D., Lohman J.R., Gansemans Y., Zhu X., Huang Y., Zhao L.X.,
RA Jiang Y., Van Nieuwerburgh F., Rader C., Duan Y., Shen B.;
RT "Strain Prioritization and Genome Mining for Enediyne Natural Products.";
RL MBio 7:e02104-e02116(2016).
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|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: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {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:OKK04000.1}.
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DR EMBL; LIWB01000011; OKK04000.1; -; Genomic_DNA.
DR RefSeq; WP_073935130.1; NZ_LIWB01000011.1.
DR AlphaFoldDB; A0A1Q5LQ10; -.
DR UniPathway; UPA00904; UER00878.
DR Proteomes; UP000185993; 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 Pfam; PF03079; ARD; 1.
DR SUPFAM; SSF51182; RmlC-like cupins; 1.
PE 3: Inferred from homology;
KW Amino-acid biosynthesis {ECO:0000256|HAMAP-Rule:MF_01682};
KW Dioxygenase {ECO:0000256|HAMAP-Rule:MF_01682};
KW Iron {ECO:0000256|HAMAP-Rule:MF_01682};
KW Metal-binding {ECO:0000256|HAMAP-Rule:MF_01682};
KW Methionine biosynthesis {ECO:0000256|HAMAP-Rule:MF_01682};
KW Nickel {ECO:0000256|HAMAP-Rule:MF_01682};
KW Oxidoreductase {ECO:0000256|HAMAP-Rule:MF_01682};
KW Reference proteome {ECO:0000313|Proteomes:UP000185993}.
FT BINDING 101
FT /ligand="Fe(2+)"
FT /ligand_id="ChEBI:CHEBI:29033"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01682"
FT BINDING 101
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 145
FT /ligand="Fe(2+)"
FT /ligand_id="ChEBI:CHEBI:29033"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01682"
FT BINDING 145
FT /ligand="Ni(2+)"
FT /ligand_id="ChEBI:CHEBI:49786"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01682"
FT SITE 100
FT /note="May play a role in metal incorporation in vivo"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01682"
FT SITE 106
FT /note="May play a role in transmitting local conformational
FT changes"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01682"
FT SITE 109
FT /note="Important to generate the dianion"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01682"
SQ SEQUENCE 192 AA; 21234 MW; 3B05096BD386DA6D CRC64;
MTLLQIMPED APETVRVRTD DLDVIQGELL RIGVRLVRWH AARRLPADAD DTTVMKAYES
HIDHLGAEGG YRIVDIVRRV PPPADPSPQR CPAREAFMQE HVHDDDLVRF LVAGTGCFSL
HVAGQVYALL CTAGDLLSVP GRTPHWFDAG AHPSCTVIRF FQRADRSAVR VLPDGIASRF
PTHDELLATP GD
//
