ID F6DE07_THETG Unreviewed; 261 AA.
AC F6DE07;
DT 27-JUL-2011, integrated into UniProtKB/TrEMBL.
DT 27-JUL-2011, sequence version 1.
DT 27-MAR-2024, entry version 67.
DE RecName: Full=3-methyl-2-oxobutanoate hydroxymethyltransferase {ECO:0000256|HAMAP-Rule:MF_00156};
DE EC=2.1.2.11 {ECO:0000256|HAMAP-Rule:MF_00156};
DE AltName: Full=Ketopantoate hydroxymethyltransferase {ECO:0000256|HAMAP-Rule:MF_00156};
DE Short=KPHMT {ECO:0000256|HAMAP-Rule:MF_00156};
GN Name=panB {ECO:0000256|HAMAP-Rule:MF_00156};
GN OrderedLocusNames=Ththe16_0406 {ECO:0000313|EMBL:AEG32836.1};
OS Thermus thermophilus (strain SG0.5JP17-16).
OC Bacteria; Deinococcota; Deinococci; Thermales; Thermaceae; Thermus.
OX NCBI_TaxID=762633 {ECO:0000313|EMBL:AEG32836.1, ECO:0000313|Proteomes:UP000009233};
RN [1] {ECO:0000313|EMBL:AEG32836.1, ECO:0000313|Proteomes:UP000009233}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=SG0.5JP17-16 {ECO:0000313|EMBL:AEG32836.1,
RC ECO:0000313|Proteomes:UP000009233};
RG US DOE Joint Genome Institute;
RA Lucas S., Han J., Lapidus A., Cheng J.-F., Goodwin L., Pitluck S.,
RA Peters L., Mikhailova N., Teshima H., Han C., Tapia R., Land M., Hauser L.,
RA Kyrpides N., Ivanova N., Pagani I., Allgaier M., Hugenholtz P., Singer S.,
RA Gladden J., Woyke T.;
RT "Complete sequence of chromosome of Thermus thermophilus SG0.5JP17-16.";
RL Submitted (MAY-2011) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|Proteomes:UP000009233}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=SG0.5JP17-16 {ECO:0000313|Proteomes:UP000009233};
RA Lucas S., Han J., Lapidus A., Cheng J.-F., Goodwin L., Pitluck S.,
RA Peters L., Mikhailova N., Teshima H., Han C., Tapia R., Land M., Hauser L.,
RA Kyrpides N., Ivanova N., Pagani I., Allgaier M., Hugenholtz P., Singer S.,
RA Gladden J., Woyke T.;
RT "Complete sequence of chromosome of Thermus thermophilus SG0.5JP17-16.";
RL Submitted (MAY-2011) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Catalyzes the reversible reaction in which hydroxymethyl
CC group from 5,10-methylenetetrahydrofolate is transferred onto alpha-
CC ketoisovalerate to form ketopantoate. {ECO:0000256|HAMAP-
CC Rule:MF_00156}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=(6R)-5,10-methylene-5,6,7,8-tetrahydrofolate + 3-methyl-2-
CC oxobutanoate + H2O = (6S)-5,6,7,8-tetrahydrofolate + 2-
CC dehydropantoate; Xref=Rhea:RHEA:11824, ChEBI:CHEBI:11561,
CC ChEBI:CHEBI:11851, ChEBI:CHEBI:15377, ChEBI:CHEBI:15636,
CC ChEBI:CHEBI:57453; EC=2.1.2.11; Evidence={ECO:0000256|HAMAP-
CC Rule:MF_00156};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_00156,
CC ECO:0000256|PIRSR:PIRSR000388-3};
CC Note=Binds 1 Mg(2+) ion per subunit. {ECO:0000256|HAMAP-Rule:MF_00156,
CC ECO:0000256|PIRSR:PIRSR000388-3};
CC -!- PATHWAY: Cofactor biosynthesis; (R)-pantothenate biosynthesis; (R)-
CC pantoate from 3-methyl-2-oxobutanoate: step 1/2. {ECO:0000256|HAMAP-
CC Rule:MF_00156}.
CC -!- SUBUNIT: Homodecamer; pentamer of dimers.
CC {ECO:0000256|ARBA:ARBA00011424, ECO:0000256|HAMAP-Rule:MF_00156}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00156}.
CC -!- SIMILARITY: Belongs to the PanB family. {ECO:0000256|ARBA:ARBA00008676,
CC ECO:0000256|HAMAP-Rule:MF_00156}.
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; CP002777; AEG32836.1; -; Genomic_DNA.
DR RefSeq; WP_008631646.1; NC_017272.1.
DR AlphaFoldDB; F6DE07; -.
DR KEGG; tts:Ththe16_0406; -.
DR PATRIC; fig|762633.3.peg.408; -.
DR HOGENOM; CLU_036645_1_0_0; -.
DR UniPathway; UPA00028; UER00003.
DR Proteomes; UP000009233; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0003864; F:3-methyl-2-oxobutanoate hydroxymethyltransferase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0008168; F:methyltransferase activity; IEA:UniProtKB-KW.
DR GO; GO:0032259; P:methylation; IEA:UniProtKB-KW.
DR GO; GO:0015940; P:pantothenate biosynthetic process; IEA:UniProtKB-UniRule.
DR CDD; cd06557; KPHMT-like; 1.
DR Gene3D; 3.20.20.60; Phosphoenolpyruvate-binding domains; 1.
DR HAMAP; MF_00156; PanB; 1.
DR InterPro; IPR003700; Pantoate_hydroxy_MeTrfase.
DR InterPro; IPR015813; Pyrv/PenolPyrv_Kinase-like_dom.
DR InterPro; IPR040442; Pyrv_Kinase-like_dom_sf.
DR NCBIfam; TIGR00222; panB; 1.
DR PANTHER; PTHR20881; 3-METHYL-2-OXOBUTANOATE HYDROXYMETHYLTRANSFERASE; 1.
DR PANTHER; PTHR20881:SF0; 3-METHYL-2-OXOBUTANOATE HYDROXYMETHYLTRANSFERASE; 1.
DR Pfam; PF02548; Pantoate_transf; 1.
DR PIRSF; PIRSF000388; Pantoate_hydroxy_MeTrfase; 1.
DR SUPFAM; SSF51621; Phosphoenolpyruvate/pyruvate domain; 1.
PE 3: Inferred from homology;
KW Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00156};
KW Magnesium {ECO:0000256|HAMAP-Rule:MF_00156, ECO:0000256|PIRSR:PIRSR000388-
KW 3};
KW Metal-binding {ECO:0000256|HAMAP-Rule:MF_00156,
KW ECO:0000256|PIRSR:PIRSR000388-3};
KW Methyltransferase {ECO:0000313|EMBL:AEG32836.1};
KW Pantothenate biosynthesis {ECO:0000256|ARBA:ARBA00022655,
KW ECO:0000256|HAMAP-Rule:MF_00156};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW Rule:MF_00156}.
FT ACT_SITE 179
FT /note="Proton acceptor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00156,
FT ECO:0000256|PIRSR:PIRSR000388-1"
FT BINDING 42..43
FT /ligand="3-methyl-2-oxobutanoate"
FT /ligand_id="ChEBI:CHEBI:11851"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00156,
FT ECO:0000256|PIRSR:PIRSR000388-2"
FT BINDING 42
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00156,
FT ECO:0000256|PIRSR:PIRSR000388-3"
FT BINDING 81
FT /ligand="3-methyl-2-oxobutanoate"
FT /ligand_id="ChEBI:CHEBI:11851"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00156,
FT ECO:0000256|PIRSR:PIRSR000388-2"
FT BINDING 81
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00156,
FT ECO:0000256|PIRSR:PIRSR000388-3"
FT BINDING 110
FT /ligand="3-methyl-2-oxobutanoate"
FT /ligand_id="ChEBI:CHEBI:11851"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00156,
FT ECO:0000256|PIRSR:PIRSR000388-2"
FT BINDING 112
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00156,
FT ECO:0000256|PIRSR:PIRSR000388-3"
SQ SEQUENCE 261 AA; 28305 MW; 331F13E31C06CFC5 CRC64;
MRRTVKDFRN AKGQRLVYLT AYDYPTARLA EAAGVDAILV GDSLGMVVLG YPSTVPVTLE
EMLHHTKAAR RGAPETFLVA DLPYLAYATL DRALFAAERL LKEGGADAVK LEGGEEVAEI
VRGLVRAGVP VLGHVGLTPQ TASQLGGYKL QGRRPEEAER ILKGALALEE AGAYGVVLEM
VPARLAKEVT ERLSVHTVGI GAGPHTDAQV LVFHDVVGLY GDFKPRFVKR YLEAGRLIQE
ALSRYAQEVR EGVFPGEEHS F
//
