MTNW_EXIS2
ID MTNW_EXIS2 Reviewed; 396 AA.
AC B1YIY2;
DT 16-DEC-2008, integrated into UniProtKB/Swiss-Prot.
DT 20-MAY-2008, sequence version 1.
DT 03-AUG-2022, entry version 94.
DE RecName: Full=2,3-diketo-5-methylthiopentyl-1-phosphate enolase {ECO:0000255|HAMAP-Rule:MF_01679};
DE Short=DK-MTP-1-P enolase {ECO:0000255|HAMAP-Rule:MF_01679};
DE EC=5.3.2.5 {ECO:0000255|HAMAP-Rule:MF_01679};
DE AltName: Full=RuBisCO-like protein {ECO:0000255|HAMAP-Rule:MF_01679};
DE Short=RLP {ECO:0000255|HAMAP-Rule:MF_01679};
GN Name=mtnW {ECO:0000255|HAMAP-Rule:MF_01679}; OrderedLocusNames=Exig_0430;
OS Exiguobacterium sibiricum (strain DSM 17290 / CIP 109462 / JCM 13490 /
OS 255-15).
OC Bacteria; Firmicutes; Bacilli; Bacillales;
OC Bacillales Family XII. Incertae Sedis; Exiguobacterium.
OX NCBI_TaxID=262543;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 17290 / CIP 109462 / JCM 13490 / 255-15;
RG US DOE Joint Genome Institute;
RA Copeland A., Lucas S., Lapidus A., Glavina del Rio T., Dalin E., Tice H.,
RA Bruce D., Goodwin L., Pitluck S., Kiss H., Chertkov O., Monk C.,
RA Brettin T., Detter J.C., Han C., Kuske C.R., Schmutz J., Larimer F.,
RA Land M., Hauser L., Kyrpides N., Mikhailova N., Vishnivetskaya T.,
RA Rodrigues D.F., Gilichinsky D., Tiedje J., Richardson P.;
RT "Complete sequence of chromosome of Exiguobacterium sibiricum 255-15.";
RL Submitted (APR-2008) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Catalyzes the enolization of 2,3-diketo-5-methylthiopentyl-1-
CC phosphate (DK-MTP-1-P) into 2-hydroxy-3-keto-5-methylthiopentenyl-1-
CC phosphate (HK-MTPenyl-1-P). {ECO:0000255|HAMAP-Rule:MF_01679}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=5-methylsulfanyl-2,3-dioxopentyl phosphate = 2-hydroxy-5-
CC methylsulfanyl-3-oxopent-1-enyl phosphate; Xref=Rhea:RHEA:18769,
CC ChEBI:CHEBI:58828, ChEBI:CHEBI:59505; EC=5.3.2.5;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01679};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01679};
CC Note=Binds 1 Mg(2+) ion per subunit. {ECO:0000255|HAMAP-Rule:MF_01679};
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 3/6. {ECO:0000255|HAMAP-Rule:MF_01679}.
CC -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_01679}.
CC -!- MISCELLANEOUS: Has no RuBP-carboxylation activity. {ECO:0000255|HAMAP-
CC Rule:MF_01679}.
CC -!- SIMILARITY: Belongs to the RuBisCO large chain family. Type IV
CC subfamily. {ECO:0000255|HAMAP-Rule:MF_01679}.
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DR EMBL; CP001022; ACB59912.1; -; Genomic_DNA.
DR RefSeq; WP_012369336.1; NC_010556.1.
DR AlphaFoldDB; B1YIY2; -.
DR SMR; B1YIY2; -.
DR STRING; 262543.Exig_0430; -.
DR EnsemblBacteria; ACB59912; ACB59912; Exig_0430.
DR KEGG; esi:Exig_0430; -.
DR eggNOG; COG1850; Bacteria.
DR HOGENOM; CLU_031450_3_1_9; -.
DR OMA; IHGHPDG; -.
DR OrthoDB; 848380at2; -.
DR UniPathway; UPA00904; UER00876.
DR Proteomes; UP000001681; Chromosome.
DR GO; GO:0043715; F:2,3-diketo-5-methylthiopentyl-1-phosphate enolase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0016984; F:ribulose-bisphosphate carboxylase activity; IEA:InterPro.
DR GO; GO:0015977; P:carbon fixation; IEA:InterPro.
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; cd08209; RLP_DK-MTP-1-P-enolase; 1.
DR Gene3D; 3.20.20.110; -; 1.
DR Gene3D; 3.30.70.150; -; 1.
DR HAMAP; MF_01679; Salvage_MtnW; 1.
DR InterPro; IPR017717; Diketo-Methiopentyl-P_enolase.
DR InterPro; IPR033966; RuBisCO.
DR InterPro; IPR000685; RuBisCO_lsu_C.
DR InterPro; IPR036376; RuBisCO_lsu_C_sf.
DR InterPro; IPR017443; RuBisCO_lsu_fd_N.
DR InterPro; IPR036422; RuBisCO_lsu_N_sf.
DR PANTHER; PTHR42704; PTHR42704; 1.
DR Pfam; PF00016; RuBisCO_large; 1.
DR Pfam; PF02788; RuBisCO_large_N; 1.
DR SFLD; SFLDF00157; 2_3-diketo-5-methylthiopentyl; 1.
DR SFLD; SFLDS00014; RuBisCO; 1.
DR SUPFAM; SSF51649; SSF51649; 1.
DR SUPFAM; SSF54966; SSF54966; 1.
PE 3: Inferred from homology;
KW Amino-acid biosynthesis; Isomerase; Magnesium; Metal-binding;
KW Methionine biosynthesis; Reference proteome.
FT CHAIN 1..396
FT /note="2,3-diketo-5-methylthiopentyl-1-phosphate enolase"
FT /id="PRO_0000357289"
FT ACT_SITE 85
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01679"
FT BINDING 134
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01679"
FT BINDING 160..163
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01679"
FT BINDING 160
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /note="via carbamate group"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01679"
FT BINDING 162
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01679"
FT BINDING 163
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01679"
FT BINDING 251
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01679"
FT BINDING 323
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01679"
FT BINDING 345..346
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01679"
FT MOD_RES 160
FT /note="N6-carboxylysine"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01679"
SQ SEQUENCE 396 AA; 42430 MW; 96F1A9490C8C1DD2 CRC64;
MTYITATYQL GTTDQLPKRA EQIALGLTVG SWTDLNHLEQ QQLESFKGQV VHTEEHDGKG
YITIRYPEHN VSRDFSAILT TVFGKLSLDG QIKLTDLQLP ASFTTDFPGA KFGIEGVRQL
IQVHDRPLLM SIFKGVIGRD LTFLREQLEA QLAGGIDLVK DDEILYDNPL TPALDRARIG
RDVLNAHYEK TGKRALYAIT LSGSVFGLKD QTKRLIEAGA TAFLLNTFTY GLDVLRELAA
DPDISVPIFN HPALSGALIA SPEYGIAAPV LLGTLPRLAG ADLTLFPSPY GNVALAKDLA
RGIAVEATRI GETKTILPVP SAGIHPGLVA QLVHDFGTDS VINAGGGVHG HPQGAAAGVL
AFRQALDAAL AGESLTSAAT RQEELRVALD AWGITK
