ID E9T6S3_RHOHA Unreviewed; 279 AA.
AC E9T6S3;
DT 31-MAY-2011, integrated into UniProtKB/TrEMBL.
DT 31-MAY-2011, sequence version 1.
DT 24-JAN-2024, entry version 65.
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 ECO:0000313|EMBL:EGD21878.1};
GN ORFNames=HMPREF0724_14479 {ECO:0000313|EMBL:EGD21878.1};
OS Prescottella equi ATCC 33707.
OC Bacteria; Actinomycetota; Actinomycetes; Mycobacteriales; Nocardiaceae;
OC Prescottella.
OX NCBI_TaxID=525370 {ECO:0000313|EMBL:EGD21878.1, ECO:0000313|Proteomes:UP000004245};
RN [1] {ECO:0000313|EMBL:EGD21878.1, ECO:0000313|Proteomes:UP000004245}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 33707 {ECO:0000313|EMBL:EGD21878.1,
RC ECO:0000313|Proteomes:UP000004245};
RA Muzny D., Qin X., Buhay C., Dugan-Rocha S., Ding Y., Chen G., Hawes A.,
RA Holder M., Jhangiani S., Johnson A., Khan Z., Li Z., Liu W., Liu X.,
RA Perez L., Shen H., Wang Q., Watt J., Xi L., Xin Y., Zhou J., Deng J.,
RA Jiang H., Liu Y., Qu J., Song X.-Z., Zhang L., Villasana D., Johnson A.,
RA Liu J., Liyanage D., Lorensuhewa L., Robinson T., Song A., Song B.-B.,
RA Dinh H., Thornton R., Coyle M., Francisco L., Jackson L., Javaid M.,
RA Korchina V., Kovar C., Mata R., Mathew T., Ngo R., Nguyen L., Nguyen N.,
RA Okwuonu G., Ongeri F., Pham C., Simmons D., Wilczek-Boney K., Hale W.,
RA Jakkamsetti A., Pham P., Ruth R., San Lucas F., Warren J., Zhang J.,
RA Zhao Z., Zhou C., Zhu D., Lee S., Bess C., Blankenburg K., Forbes L.,
RA Fu Q., Gubbala S., Hirani K., Jayaseelan J.C., Lara F., Munidasa M.,
RA Palculict T., Patil S., Pu L.-L., Saada N., Tang L., Weissenberger G.,
RA Zhu Y., Hemphill L., Shang Y., Youmans B., Ayvaz T., Ross M.,
RA Santibanez J., Aqrawi P., Gross S., Joshi V., Fowler G., Nazareth L.,
RA Reid J., Worley K., Petrosino J., Highlander S., Gibbs R.;
RL Submitted (JAN-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 -!- 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:EGD21878.1}.
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DR EMBL; ADNW02000026; EGD21878.1; -; Genomic_DNA.
DR RefSeq; WP_005512410.1; NZ_CM001149.1.
DR AlphaFoldDB; E9T6S3; -.
DR STRING; 43767.A6I91_01565; -.
DR GeneID; 57578520; -.
DR HOGENOM; CLU_036645_1_0_11; -.
DR OrthoDB; 9781789at2; -.
DR UniPathway; UPA00028; UER00003.
DR Proteomes; UP000004245; 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:EGD21878.1};
KW Pantothenate biosynthesis {ECO:0000256|ARBA:ARBA00022655,
KW ECO:0000256|HAMAP-Rule:MF_00156};
KW Reference proteome {ECO:0000313|Proteomes:UP000004245};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW Rule:MF_00156}.
FT ACT_SITE 197
FT /note="Proton acceptor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00156,
FT ECO:0000256|PIRSR:PIRSR000388-1"
FT BINDING 60..61
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 60
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 99
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 99
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 129
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 131
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 279 AA; 29247 MW; FF0D05C437D5B530 CRC64;
MSENAVYGSA APAAPKRKTR IHHLQAMKAE GTRWAELTAY DYSSARLFEE AGIPVLLVGD
SAANVVYGYD TTVPVTIDEM LPLVRGVVRG APHALVIADL PFGSYEASPQ QALETAFRFM
KEGQAHAVKL EGGERVAPQI AALTAAGIPV QAHIGFTPQS VNSLGGFRVQ GRGDGAEQLV
ADAIAVQEAG AFSVVMEMVP AELAGQVTRK LTIPTVGIGA GNECDAQVLV WQDMAGYTSG
KTAKFVKRFG EVGTALRDAA AAYASEVESG AFPAAEHSF
//
