ID I7MAL0_TETTS Unreviewed; 400 AA.
AC I7MAL0;
DT 03-OCT-2012, integrated into UniProtKB/TrEMBL.
DT 03-OCT-2012, sequence version 1.
DT 24-JAN-2024, entry version 68.
DE RecName: Full=Multifunctional fusion protein {ECO:0000256|HAMAP-Rule:MF_03116, ECO:0000256|HAMAP-Rule:MF_03154};
DE Includes:
DE RecName: Full=Acireductone dioxygenase {ECO:0000256|HAMAP-Rule:MF_03154};
DE AltName: Full=Acireductone dioxygenase (Fe(2+)-requiring) {ECO:0000256|HAMAP-Rule:MF_03154};
DE AltName: Full=Acireductone dioxygenase (Ni(2+)-requiring) {ECO:0000256|HAMAP-Rule:MF_03154};
DE Short=ARD {ECO:0000256|HAMAP-Rule:MF_03154};
DE Short=ARD' {ECO:0000256|HAMAP-Rule:MF_03154};
DE Short=Fe-ARD {ECO:0000256|HAMAP-Rule:MF_03154};
DE Short=Ni-ARD {ECO:0000256|HAMAP-Rule:MF_03154};
DE EC=1.13.11.53 {ECO:0000256|HAMAP-Rule:MF_03154};
DE EC=1.13.11.54 {ECO:0000256|HAMAP-Rule:MF_03154};
DE Includes:
DE RecName: Full=Probable methylthioribulose-1-phosphate dehydratase {ECO:0000256|HAMAP-Rule:MF_03116};
DE Short=MTRu-1-P dehydratase {ECO:0000256|HAMAP-Rule:MF_03116};
DE EC=4.2.1.109 {ECO:0000256|HAMAP-Rule:MF_03116};
GN ORFNames=TTHERM_00467500 {ECO:0000313|EMBL:EAS04801.1};
OS Tetrahymena thermophila (strain SB210).
OC Eukaryota; Sar; Alveolata; Ciliophora; Intramacronucleata;
OC Oligohymenophorea; Hymenostomatida; Tetrahymenina; Tetrahymenidae;
OC Tetrahymena.
OX NCBI_TaxID=312017 {ECO:0000313|EMBL:EAS04801.1, ECO:0000313|Proteomes:UP000009168};
RN [1] {ECO:0000313|Proteomes:UP000009168}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=SB210 {ECO:0000313|Proteomes:UP000009168};
RX PubMed=16933976; DOI=10.1371/journal.pbio.0040286;
RA Eisen J.A., Coyne R.S., Wu M., Wu D., Thiagarajan M., Wortman J.R.,
RA Badger J.H., Ren Q., Amedeo P., Jones K.M., Tallon L.J., Delcher A.L.,
RA Salzberg S.L., Silva J.C., Haas B.J., Majoros W.H., Farzad M.,
RA Carlton J.M., Smith R.K. Jr., Garg J., Pearlman R.E., Karrer K.M., Sun L.,
RA Manning G., Elde N.C., Turkewitz A.P., Asai D.J., Wilkes D.E., Wang Y.,
RA Cai H., Collins K., Stewart B.A., Lee S.R., Wilamowska K., Weinberg Z.,
RA Ruzzo W.L., Wloga D., Gaertig J., Frankel J., Tsao C.-C., Gorovsky M.A.,
RA Keeling P.J., Waller R.F., Patron N.J., Cherry J.M., Stover N.A.,
RA Krieger C.J., del Toro C., Ryder H.F., Williamson S.C., Barbeau R.A.,
RA Hamilton E.P., Orias E.;
RT "Macronuclear genome sequence of the ciliate Tetrahymena thermophila, a
RT model eukaryote.";
RL PLoS Biol. 4:1620-1642(2006).
CC -!- FUNCTION: Catalyzes 2 different reactions between oxygen 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_03154}.
CC -!- FUNCTION: Catalyzes the dehydration of methylthioribulose-1-phosphate
CC (MTRu-1-P) into 2,3-diketo-5-methylthiopentyl-1-phosphate (DK-MTP-1-P).
CC {ECO:0000256|HAMAP-Rule:MF_03116}.
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_03154};
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_03154};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=S-methyl-5-thio-D-ribulose 1-phosphate = 5-methylsulfanyl-2,3-
CC dioxopentyl phosphate + H2O; Xref=Rhea:RHEA:15549, ChEBI:CHEBI:15377,
CC ChEBI:CHEBI:58548, ChEBI:CHEBI:58828; EC=4.2.1.109;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_03116};
CC -!- COFACTOR:
CC Name=Fe(2+); Xref=ChEBI:CHEBI:29033;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_03154};
CC Name=Ni(2+); Xref=ChEBI:CHEBI:49786;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_03154};
CC Note=Binds either 1 Fe or Ni cation per monomer. Iron-binding promotes
CC an acireductone dioxygenase reaction producing 2-keto-4-
CC methylthiobutyrate, while nickel-binding promotes an acireductone
CC dioxygenase reaction producing 3-(methylsulfanyl)propanoate.
CC {ECO:0000256|HAMAP-Rule:MF_03154};
CC -!- COFACTOR:
CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_03116};
CC Note=Binds 1 zinc ion per subunit. {ECO:0000256|HAMAP-Rule:MF_03116};
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 2/6. {ECO:0000256|HAMAP-Rule:MF_03116}.
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_03154}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_03154}.
CC Nucleus {ECO:0000256|HAMAP-Rule:MF_03154}.
CC -!- SIMILARITY: Belongs to the acireductone dioxygenase (ARD) family.
CC {ECO:0000256|HAMAP-Rule:MF_03154}.
CC -!- SIMILARITY: Belongs to the aldolase class II family. MtnB subfamily.
CC {ECO:0000256|HAMAP-Rule:MF_03116}.
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DR EMBL; GG662441; EAS04801.1; -; Genomic_DNA.
DR RefSeq; XP_001025046.1; XM_001025046.1.
DR AlphaFoldDB; I7MAL0; -.
DR STRING; 312017.I7MAL0; -.
DR EnsemblProtists; EAS04801; EAS04801; TTHERM_00467500.
DR GeneID; 7826160; -.
DR KEGG; tet:TTHERM_00467500; -.
DR eggNOG; KOG2107; Eukaryota.
DR eggNOG; KOG2631; Eukaryota.
DR HOGENOM; CLU_689818_0_0_1; -.
DR InParanoid; I7MAL0; -.
DR OMA; ENTENEC; -.
DR OrthoDB; 275419at2759; -.
DR BRENDA; 4.2.1.109; 6245.
DR UniPathway; UPA00904; UER00875.
DR Proteomes; UP000009168; Unassembled WGS sequence.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0005634; C:nucleus; IEA:UniProtKB-SubCell.
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:0046570; F:methylthioribulose 1-phosphate dehydratase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0016151; F:nickel cation binding; IEA:UniProtKB-UniRule.
DR GO; GO:0008270; F:zinc ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0019509; P:L-methionine salvage from methylthioadenosine; IEA:UniProtKB-UniRule.
DR GO; GO:0019284; P:L-methionine salvage from S-adenosylmethionine; IEA:UniProtKB-UniRule.
DR CDD; cd02232; cupin_ARD; 1.
DR Gene3D; 3.40.225.10; Class II aldolase/adducin N-terminal domain; 1.
DR Gene3D; 2.60.120.10; Jelly Rolls; 1.
DR HAMAP; MF_03116; Salvage_MtnB_euk; 1.
DR HAMAP; MF_03154; Salvage_MtnD_euk; 1.
DR InterPro; IPR001303; Aldolase_II/adducin_N.
DR InterPro; IPR036409; Aldolase_II/adducin_N_sf.
DR InterPro; IPR004313; ARD.
DR InterPro; IPR027496; ARD_euk.
DR InterPro; IPR017714; MethylthioRu-1-P_deHdtase_MtnB.
DR InterPro; IPR014710; RmlC-like_jellyroll.
DR InterPro; IPR011051; RmlC_Cupin_sf.
DR InterPro; IPR027514; Salvage_MtnB_euk.
DR NCBIfam; TIGR03328; salvage_mtnB; 1.
DR PANTHER; PTHR10640; METHYLTHIORIBULOSE-1-PHOSPHATE DEHYDRATASE; 1.
DR PANTHER; PTHR10640:SF7; METHYLTHIORIBULOSE-1-PHOSPHATE DEHYDRATASE; 1.
DR Pfam; PF00596; Aldolase_II; 1.
DR Pfam; PF03079; ARD; 1.
DR SMART; SM01007; Aldolase_II; 1.
DR SUPFAM; SSF53639; AraD/HMP-PK domain-like; 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_03116};
KW Cytoplasm {ECO:0000256|ARBA:ARBA00022490, ECO:0000256|HAMAP-Rule:MF_03116};
KW Dioxygenase {ECO:0000256|HAMAP-Rule:MF_03154};
KW Iron {ECO:0000256|HAMAP-Rule:MF_03154};
KW Lyase {ECO:0000256|ARBA:ARBA00023239, ECO:0000256|HAMAP-Rule:MF_03116};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW Rule:MF_03116};
KW Methionine biosynthesis {ECO:0000256|ARBA:ARBA00023167, ECO:0000256|HAMAP-
KW Rule:MF_03116}; Nickel {ECO:0000256|HAMAP-Rule:MF_03154};
KW Nucleus {ECO:0000256|ARBA:ARBA00023242, ECO:0000256|HAMAP-Rule:MF_03154};
KW Oxidoreductase {ECO:0000256|HAMAP-Rule:MF_03154};
KW Reference proteome {ECO:0000313|Proteomes:UP000009168};
KW Zinc {ECO:0000256|ARBA:ARBA00022833, ECO:0000256|HAMAP-Rule:MF_03116}.
FT DOMAIN 12..201
FT /note="Class II aldolase/adducin N-terminal"
FT /evidence="ECO:0000259|SMART:SM01007"
FT ACT_SITE 124
FT /note="Proton donor/acceptor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03116"
FT BINDING 83
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03116"
FT BINDING 101
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03116"
FT BINDING 103
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03116"
FT BINDING 174
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03116"
FT BINDING 307
FT /ligand="Fe(2+)"
FT /ligand_id="ChEBI:CHEBI:29033"
FT /ligand_note="for iron-dependent acireductone dioxygenase
FT activity"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03154"
FT BINDING 307
FT /ligand="Ni(2+)"
FT /ligand_id="ChEBI:CHEBI:49786"
FT /ligand_note="for nickel-dependent acireductone dioxygenase
FT activity"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03154"
FT BINDING 309
FT /ligand="Fe(2+)"
FT /ligand_id="ChEBI:CHEBI:29033"
FT /ligand_note="for iron-dependent acireductone dioxygenase
FT activity"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03154"
FT BINDING 309
FT /ligand="Ni(2+)"
FT /ligand_id="ChEBI:CHEBI:49786"
FT /ligand_note="for nickel-dependent acireductone dioxygenase
FT activity"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03154"
FT BINDING 313
FT /ligand="Fe(2+)"
FT /ligand_id="ChEBI:CHEBI:29033"
FT /ligand_note="for iron-dependent acireductone dioxygenase
FT activity"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03154"
FT BINDING 313
FT /ligand="Ni(2+)"
FT /ligand_id="ChEBI:CHEBI:49786"
FT /ligand_note="for nickel-dependent acireductone dioxygenase
FT activity"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03154"
FT BINDING 352
FT /ligand="Fe(2+)"
FT /ligand_id="ChEBI:CHEBI:29033"
FT /ligand_note="for iron-dependent acireductone dioxygenase
FT activity"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03154"
FT BINDING 352
FT /ligand="Ni(2+)"
FT /ligand_id="ChEBI:CHEBI:49786"
FT /ligand_note="for nickel-dependent acireductone dioxygenase
FT activity"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03154"
SQ SEQUENCE 400 AA; 46249 MW; DB14D84D472E111B CRC64;
MNGLSSNSGP REVICALLRN FYTQGWCAGS GGGISIRKSD DEIYVAPSGV QKELVQPEDI
YVINVNGDVV ENPKNPKLKP SECTPLFNAA YKLRRAGAVL HSHALPAMLV TKLFGTEFQT
IDHEMIKGIP NHHNTEWCVV PIIENTEKEC ELTERLTNAI NAYPRSNAVL VRNHGVYIWG
ENWEKAKIHA ECYHYLFEAV VEMKKLGLEI PRTVSSSSQL RAWYIDENAI GQDGDIRESL
HYRSYKWVNP EYLATIGVEH WKLDGEENNT ELERVCKQRN YSSRDQIKCG NHCENYQQML
SNFRKEHIHL DEEIRYIIGG SGYFDVRDHE DKWIRIQSVK GDLIVLPEGI YHRFTTDKND
GVHAMRLFKD EPKWTPYNRP CDELESRNKY VDQFLKKFQK
//
