PANB_LISW6
ID PANB_LISW6 Reviewed; 277 AA.
AC A0AK07;
DT 24-JUL-2007, integrated into UniProtKB/Swiss-Prot.
DT 28-NOV-2006, sequence version 1.
DT 03-AUG-2022, entry version 90.
DE RecName: Full=3-methyl-2-oxobutanoate hydroxymethyltransferase {ECO:0000255|HAMAP-Rule:MF_00156};
DE EC=2.1.2.11 {ECO:0000255|HAMAP-Rule:MF_00156};
DE AltName: Full=Ketopantoate hydroxymethyltransferase {ECO:0000255|HAMAP-Rule:MF_00156};
DE Short=KPHMT {ECO:0000255|HAMAP-Rule:MF_00156};
GN Name=panB {ECO:0000255|HAMAP-Rule:MF_00156}; OrderedLocusNames=lwe1921;
OS Listeria welshimeri serovar 6b (strain ATCC 35897 / DSM 20650 / CIP 8149 /
OS NCTC 11857 / SLCC 5334 / V8).
OC Bacteria; Firmicutes; Bacilli; Bacillales; Listeriaceae; Listeria.
OX NCBI_TaxID=386043;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 35897 / DSM 20650 / CIP 8149 / NCTC 11857 / SLCC 5334 / V8;
RX PubMed=16936040; DOI=10.1128/jb.00758-06;
RA Hain T., Steinweg C., Kuenne C.T., Billion A., Ghai R., Chatterjee S.S.,
RA Domann E., Kaerst U., Goesmann A., Bekel T., Bartels D., Kaiser O.,
RA Meyer F., Puehler A., Weisshaar B., Wehland J., Liang C., Dandekar T.,
RA Lampidis R., Kreft J., Goebel W., Chakraborty T.;
RT "Whole-genome sequence of Listeria welshimeri reveals common steps in
RT genome reduction with Listeria innocua as compared to Listeria
RT monocytogenes.";
RL J. Bacteriol. 188:7405-7415(2006).
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:0000255|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:0000255|HAMAP-
CC Rule:MF_00156};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00156};
CC Note=Binds 1 Mg(2+) ion per subunit. {ECO:0000255|HAMAP-Rule:MF_00156};
CC -!- PATHWAY: Cofactor biosynthesis; (R)-pantothenate biosynthesis; (R)-
CC pantoate from 3-methyl-2-oxobutanoate: step 1/2. {ECO:0000255|HAMAP-
CC Rule:MF_00156}.
CC -!- SUBUNIT: Homodecamer; pentamer of dimers. {ECO:0000255|HAMAP-
CC Rule:MF_00156}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00156}.
CC -!- SIMILARITY: Belongs to the PanB family. {ECO:0000255|HAMAP-
CC Rule:MF_00156}.
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DR EMBL; AM263198; CAK21339.1; -; Genomic_DNA.
DR RefSeq; WP_011702687.1; NC_008555.1.
DR AlphaFoldDB; A0AK07; -.
DR SMR; A0AK07; -.
DR STRING; 386043.lwe1921; -.
DR EnsemblBacteria; CAK21339; CAK21339; lwe1921.
DR GeneID; 61189823; -.
DR KEGG; lwe:lwe1921; -.
DR eggNOG; COG0413; Bacteria.
DR HOGENOM; CLU_036645_1_0_9; -.
DR OMA; VLVWTDM; -.
DR OrthoDB; 916845at2; -.
DR UniPathway; UPA00028; UER00003.
DR Proteomes; UP000000779; 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:0015940; P:pantothenate biosynthetic process; IEA:UniProtKB-UniRule.
DR CDD; cd06557; KPHMT-like; 1.
DR Gene3D; 3.20.20.60; -; 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 PANTHER; PTHR20881; PTHR20881; 1.
DR Pfam; PF02548; Pantoate_transf; 1.
DR PIRSF; PIRSF000388; Pantoate_hydroxy_MeTrfase; 1.
DR SUPFAM; SSF51621; SSF51621; 1.
DR TIGRFAMs; TIGR00222; panB; 1.
PE 3: Inferred from homology;
KW Cytoplasm; Magnesium; Metal-binding; Pantothenate biosynthesis;
KW Transferase.
FT CHAIN 1..277
FT /note="3-methyl-2-oxobutanoate hydroxymethyltransferase"
FT /id="PRO_0000297289"
FT ACT_SITE 181
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00156"
FT BINDING 43..44
FT /ligand="3-methyl-2-oxobutanoate"
FT /ligand_id="ChEBI:CHEBI:11851"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00156"
FT BINDING 43
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00156"
FT BINDING 82
FT /ligand="3-methyl-2-oxobutanoate"
FT /ligand_id="ChEBI:CHEBI:11851"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00156"
FT BINDING 82
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00156"
FT BINDING 112
FT /ligand="3-methyl-2-oxobutanoate"
FT /ligand_id="ChEBI:CHEBI:11851"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00156"
FT BINDING 114
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00156"
SQ SEQUENCE 277 AA; 29879 MW; BE739B02823D71CC CRC64;
MKRPVDFYAM KESGEKITMI TAYDYPSAKN VEQAAADMIL VGDSLGMVVL GYDSTVPVTI
DDMIHHTKAV KRGAPNTFVV TDMPFMTYHG SVDETIQNAR QIIQESGAHA VKLEGAGEVV
NKIARLTEAG APVVAHLGLT PQSVGLTGSY KVRAKSVQEA QELIDNALAV EAAGAIAIVL
EAIPRQLAEK VTKALTIPTI GIGAGVETDG QVLVYHDIIG YGISRRAKFV KAYADIDETI
EPALTSYVKE VKEQTFPEVK HSFTMAEEDL KGLYGRE
