ID F2IID2_FLUTR Unreviewed; 271 AA.
AC F2IID2;
DT 31-MAY-2011, integrated into UniProtKB/TrEMBL.
DT 31-MAY-2011, sequence version 1.
DT 27-MAR-2024, entry version 70.
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=Fluta_2879 {ECO:0000313|EMBL:AEA44858.1};
OS Fluviicola taffensis (strain DSM 16823 / NCIMB 13979 / RW262).
OC Bacteria; Bacteroidota; Flavobacteriia; Flavobacteriales;
OC Crocinitomicaceae; Fluviicola.
OX NCBI_TaxID=755732 {ECO:0000313|EMBL:AEA44858.1, ECO:0000313|Proteomes:UP000007463};
RN [1] {ECO:0000313|EMBL:AEA44858.1, ECO:0000313|Proteomes:UP000007463}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 16823 / RW262 / RW262 {ECO:0000313|Proteomes:UP000007463};
RX PubMed=22180807; DOI=10.4056/sigs.2124912;
RA Woyke T., Chertkov O., Lapidus A., Nolan M., Lucas S., Del Rio T.G.,
RA Tice H., Cheng J.F., Tapia R., Han C., Goodwin L., Pitluck S., Liolios K.,
RA Pagani I., Ivanova N., Huntemann M., Mavromatis K., Mikhailova N., Pati A.,
RA Chen A., Palaniappan K., Land M., Hauser L., Brambilla E.M., Rohde M.,
RA Mwirichia R., Sikorski J., Tindall B.J., Goker M., Bristow J., Eisen J.A.,
RA Markowitz V., Hugenholtz P., Klenk H.P., Kyrpides N.C.;
RT "Complete genome sequence of the gliding freshwater bacterium Fluviicola
RT taffensis type strain (RW262).";
RL Stand. Genomic Sci. 5:21-29(2011).
RN [2] {ECO:0000313|Proteomes:UP000007463}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 16823 / RW262 / RW262 {ECO:0000313|Proteomes:UP000007463};
RG US DOE Joint Genome Institute (JGI-PGF);
RA Lucas S., Copeland A., Lapidus A., Bruce D., Goodwin L., Pitluck S.,
RA Kyrpides N., Mavromatis K., Ivanova N., Mikhailova N., Pagani I.,
RA Chertkov O., Detter J.C., Han C., Tapia R., Land M., Hauser L.,
RA Markowitz V., Cheng J.-F., Hugenholtz P., Woyke T., Wu D., Tindall B.,
RA Pomrenke H.G., Brambilla E., Klenk H.-P., Eisen J.A.;
RT "The complete genome of Fluviicola taffensis DSM 16823.";
RL Submitted (FEB-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}.
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DR EMBL; CP002542; AEA44858.1; -; Genomic_DNA.
DR RefSeq; WP_013687627.1; NC_015321.1.
DR AlphaFoldDB; F2IID2; -.
DR STRING; 755732.Fluta_2879; -.
DR KEGG; fte:Fluta_2879; -.
DR eggNOG; COG0413; Bacteria.
DR HOGENOM; CLU_036645_1_0_10; -.
DR OrthoDB; 9781789at2; -.
DR UniPathway; UPA00028; UER00003.
DR Proteomes; UP000007463; 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:AEA44858.1};
KW Pantothenate biosynthesis {ECO:0000256|ARBA:ARBA00022655,
KW ECO:0000256|HAMAP-Rule:MF_00156};
KW Reference proteome {ECO:0000313|Proteomes:UP000007463};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW Rule:MF_00156}.
FT ACT_SITE 189
FT /note="Proton acceptor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00156,
FT ECO:0000256|PIRSR:PIRSR000388-1"
FT BINDING 51..52
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 51
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 90
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 90
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 120
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 122
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 271 AA; 29343 MW; 301E4167760AA0F9 CRC64;
MSVHKNVKRV TTNVLQEMKN SGAKISMLTG YDFSMARIID SAGIDIILVG DSASNVMAGH
ETTLPITLDQ MIYHAGSVVR AVERALVVVD MPFGSYQGNS KEALSNAIRI MKESGGHAVK
LEGGIEIIES IKRILTAGIP VMGHLGLTPQ SIYKFGTYVV RAKEEGEAQR LIEDAKALEE
AGCFAIVLEK IPASLAETVA KAVSIPIIGI GAGNGVDGQV LVVHDMLGIN NEFSPRFLRK
YANLYDIMKE AVESYIEDVR SGDFPNQNEQ Y
//
