PANB_AGRFC
ID PANB_AGRFC Reviewed; 279 AA.
AC Q8UA91;
DT 30-AUG-2002, integrated into UniProtKB/Swiss-Prot.
DT 01-JUN-2002, sequence version 1.
DT 03-AUG-2022, entry version 103.
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=Atu3483;
GN ORFNames=AGR_L_2695;
OS Agrobacterium fabrum (strain C58 / ATCC 33970) (Agrobacterium tumefaciens
OS (strain C58)).
OC Bacteria; Proteobacteria; Alphaproteobacteria; Hyphomicrobiales;
OC Rhizobiaceae; Rhizobium/Agrobacterium group; Agrobacterium;
OC Agrobacterium tumefaciens complex.
OX NCBI_TaxID=176299;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=C58 / ATCC 33970;
RX PubMed=11743193; DOI=10.1126/science.1066804;
RA Wood D.W., Setubal J.C., Kaul R., Monks D.E., Kitajima J.P., Okura V.K.,
RA Zhou Y., Chen L., Wood G.E., Almeida N.F. Jr., Woo L., Chen Y.,
RA Paulsen I.T., Eisen J.A., Karp P.D., Bovee D. Sr., Chapman P.,
RA Clendenning J., Deatherage G., Gillet W., Grant C., Kutyavin T., Levy R.,
RA Li M.-J., McClelland E., Palmieri A., Raymond C., Rouse G.,
RA Saenphimmachak C., Wu Z., Romero P., Gordon D., Zhang S., Yoo H., Tao Y.,
RA Biddle P., Jung M., Krespan W., Perry M., Gordon-Kamm B., Liao L., Kim S.,
RA Hendrick C., Zhao Z.-Y., Dolan M., Chumley F., Tingey S.V., Tomb J.-F.,
RA Gordon M.P., Olson M.V., Nester E.W.;
RT "The genome of the natural genetic engineer Agrobacterium tumefaciens
RT C58.";
RL Science 294:2317-2323(2001).
RN [2]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=C58 / ATCC 33970;
RX PubMed=11743194; DOI=10.1126/science.1066803;
RA Goodner B., Hinkle G., Gattung S., Miller N., Blanchard M., Qurollo B.,
RA Goldman B.S., Cao Y., Askenazi M., Halling C., Mullin L., Houmiel K.,
RA Gordon J., Vaudin M., Iartchouk O., Epp A., Liu F., Wollam C., Allinger M.,
RA Doughty D., Scott C., Lappas C., Markelz B., Flanagan C., Crowell C.,
RA Gurson J., Lomo C., Sear C., Strub G., Cielo C., Slater S.;
RT "Genome sequence of the plant pathogen and biotechnology agent
RT Agrobacterium tumefaciens C58.";
RL Science 294:2323-2328(2001).
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; AE007870; AAK89911.1; -; Genomic_DNA.
DR PIR; AB2985; AB2985.
DR PIR; E98298; E98298.
DR RefSeq; NP_357126.1; NC_003063.2.
DR RefSeq; WP_010973079.1; NC_003063.2.
DR AlphaFoldDB; Q8UA91; -.
DR SMR; Q8UA91; -.
DR STRING; 176299.Atu3483; -.
DR EnsemblBacteria; AAK89911; AAK89911; Atu3483.
DR GeneID; 66223784; -.
DR KEGG; atu:Atu3483; -.
DR PATRIC; fig|176299.10.peg.3322; -.
DR eggNOG; COG0413; Bacteria.
DR HOGENOM; CLU_036645_1_0_5; -.
DR OMA; VLVWTDM; -.
DR PhylomeDB; Q8UA91; -.
DR BioCyc; AGRO:ATU3483-MON; -.
DR UniPathway; UPA00028; UER00003.
DR Proteomes; UP000000813; Chromosome linear.
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 Reference proteome; Transferase.
FT CHAIN 1..279
FT /note="3-methyl-2-oxobutanoate hydroxymethyltransferase"
FT /id="PRO_0000184805"
FT ACT_SITE 187
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00156"
FT BINDING 49..50
FT /ligand="3-methyl-2-oxobutanoate"
FT /ligand_id="ChEBI:CHEBI:11851"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00156"
FT BINDING 49
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00156"
FT BINDING 88
FT /ligand="3-methyl-2-oxobutanoate"
FT /ligand_id="ChEBI:CHEBI:11851"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00156"
FT BINDING 88
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00156"
FT BINDING 118
FT /ligand="3-methyl-2-oxobutanoate"
FT /ligand_id="ChEBI:CHEBI:11851"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00156"
FT BINDING 120
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00156"
SQ SEQUENCE 279 AA; 29759 MW; 429B3D572C467678 CRC64;
MSAHAKQKRL TTASIRQMKG EARIVCLTAY TTPIARLLDP HCDLLLVGDS LGMVLYGMET
TVGVTLDMMI AHGRAVMRGV EHACVIVDLP FGTYQESKEQ AFRNAVRLMQ ETGCDGVKLE
GGEEMAETIA FLVARGIPVF GHVGLMPQLV HTAGGFRSLG HSDAETQKIW RDGIAVDQAG
AFAIVVEGTV EPLARELTEK LAAPTVGIGA SPACDGQVLV SDDMLGLFSD FKPKFVKRYA
DLGTAATQAA AAYADEVRSG AFPGPEHTFQ VRKPSPSGK
