B6ELE1 (PANB_ALISL) Reviewed, UniProtKB/Swiss-Prot

Names and origin

Protein names

Recommended name:
3-methyl-2-oxobutanoate hydroxymethyltransferase
EC=2.1.2.11

Alternative name(s):
Ketopantoate hydroxymethyltransferase
Short name=KPHMT

Gene names

Name:	panB
Ordered Locus Names:	VSAL_I2609

Organism

Aliivibrio salmonicida (strain LFI1238) (Vibrio salmonicida (strain LFI1238)) [Complete proteome] [HAMAP]

Taxonomic identifier

316275 [NCBI]

Taxonomic lineage

Bacteria › Proteobacteria › Gammaproteobacteria › Vibrionales › Vibrionaceae › Aliivibrio

Protein attributes

Sequence length	264 AA.
Sequence status	Complete.
Protein existence	Inferred from homology

General annotation (Comments)

Function	Catalyzes the reversible reaction in which hydroxymethyl group from 5,10-methylenetetrahydrofolate is tranferred onto alpha-ketoisovalerate to form ketopantoate By similarity. HAMAP MF_00156
Catalytic activity	5,10-methylenetetrahydrofolate + 3-methyl-2-oxobutanoate + H2O = tetrahydrofolate + 2-dehydropantoate. HAMAP MF_00156
Cofactor	Binds 1 magnesium ion per subunit By similarity. HAMAP MF_00156
Pathway	Cofactor biosynthesis; (R)-pantothenate biosynthesis; (R)-pantoate from 3-methyl-2-oxobutanoate: step 1/2. HAMAP MF_00156
Subunit structure	Homodecamer; pentamer of dimers By similarity. HAMAP MF_00156
Subcellular location	Cytoplasm Potential HAMAP MF_00156.
Sequence similarities	Belongs to the PanB family.

Ontologies

Keywords
Biological process	Pantothenate biosynthesis
Cellular component	Cytoplasm
Ligand	Magnesium Metal-binding
Molecular function	Methyltransferase Transferase
Technical term	Complete proteome
Gene Ontology (GO)
Biological process	pantothenate biosynthetic process Inferred from electronic annotation. Source: UniProtKB-KW
Cellular component	cytoplasm Inferred from electronic annotation. Source: UniProtKB-SubCell
Molecular function	3-methyl-2-oxobutanoate hydroxymethyltransferase activity Inferred from electronic annotation. Source: EC metal ion binding Inferred from electronic annotation. Source: UniProtKB-KW methyltransferase activity Inferred from electronic annotation. Source: UniProtKB-KW
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 264	264	3-methyl-2-oxobutanoate hydroxymethyltransferase HAMAP MF_00156		PRO_1000096937
Regions
	Region	45 – 46	2	Alpha-ketoisovalerate binding By similarity
Sites
	Active site	181	1	Proton acceptor By similarity
	Metal binding	45	1	Magnesium By similarity
	Metal binding	84	1	Magnesium By similarity
	Metal binding	114	1	Magnesium By similarity
	Binding site	84	1	Alpha-ketoisovalerate By similarity
	Binding site	112	1	Alpha-ketoisovalerate By similarity

Sequences

	Sequence		Length	Mass (Da)
	B6ELE1 [UniParc]. Last modified November 25, 2008. Version 1. Checksum: 5A56A591AE8F334E	FASTA	264	28,720
	10 20 30 40 50 60 MKKISIHDLM KWKQDGRKFA TVTAYDASFA QLFEQQDMPV LLVGDSLGMV LQGKSDTLPV 70 80 90 100 110 120 TTEEIAYHTR CVRAGSPNSL LMADMPFMSY ATPEQACQNA AKLMQAGANM VKIEGGEWIA 130 140 150 160 170 180 ETIKLLAERA VPVCAHLGLT PQSVNIFGGF RIQGRDETKA NQMVKDALTL EKAGAQIILL 190 200 210 220 230 240 ECVPASLAER ITKACTVPVI GIGAGNVTDG QILVMHDMFG ISANYMPKFS KNFLAETGDM 250 260 RTAVTKYIKD VELGVFPAAE HTFN

References

[1]

"The complete genome sequence of the fish pathogen Aliivibrio salmonicida strain LFI1238." Hjerde E., Lorentzen M.S., Holden M.T.G., Seeger K., Paulsen S., Bason N., Churcher C., Harris D., Norbertczak H., Quail M.A., Sanders S., Thurston S., Parkhill J., Willassen N.-P., Thomson N.R. Submitted (JUN-2008) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: LFI1238.

Cross-references

Sequence databases
EMBL GenBank DDBJ	FM178379 Genomic DNA. Translation: CAQ80293.1.
RefSeq	YP_002263952.1. NC_011312.1.
3D structure databases
ModBase	Search...
Protein-protein interaction databases
STRING	B6ELE1.
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Genome annotation databases
GeneID	6988557.
GenomeReviews	Gene locus VSAL_I2609 in contig FM178379_GR.
KEGG	vsa:VSAL_I2609.
PATRIC	20855691. VBIAliSal95923_2835.
Organism-specific databases
CMR	Search...
Phylogenomic databases
HOGENOM	HBG299908.
OMA	YDATFAH.
ProtClustDB	PRK00311.
Family and domain databases
HAMAP	MF_00156. PanB. [Tree]
InterPro	IPR003700. Pantoate_hydroxy_MeTrfase. IPR015813. Pyrv/PenolPyrv_Kinase. [Graphical view]
Gene3D	G3DSA:3.20.20.60. Pyrv/PenolPyrv_Kinase_cat. 1 hit.
KO	K00606.
PANTHER	PTHR20881. Pantoate_transf. 1 hit.
Pfam	PF02548. Pantoate_transf. 1 hit. [Graphical view]
PIRSF	PIRSF000388. Pantoate_hydroxy_MeTrfase. 1 hit.
SUPFAM	SSF51621. Pyrv/PenolPyrv_Kinase_cat. 1 hit.
TIGRFAMs	TIGR00222. PanB. 1 hit.
ProtoNet	Search...

Entry information

Entry name

PANB_ALISL

Accession

Primary (citable) accession number: B6ELE1

Entry history

Integrated into UniProtKB/Swiss-Prot:	March 24, 2009
Last sequence update:	November 25, 2008
Last modified:	January 25, 2012
This is version 28 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Prokaryotic Protein Annotation Program