Reviewed, UniProtKB/Swiss-Prot Q02K83 (PANB1_PSEAB)

Names and origin

Protein names

Recommended name:
    3-methyl-2-oxobutanoate hydroxymethyltransferase 1
    EC=2.1.2.11
Alternative name(s):
    Ketopantoate hydroxymethyltransferase 1
      Short name=KPHMT 1

Gene names

Name:	panB1
Ordered Locus Names:	PA14_43830

Organism

Pseudomonas aeruginosa (strain UCBPP-PA14) [Complete proteome] [HAMAP]

Taxonomic identifier

208963 [NCBI]

Taxonomic lineage

Bacteria › Proteobacteria › Gammaproteobacteria › Pseudomonadales › Pseudomonadaceae › Pseudomonas

Protein attributes

Sequence length	273 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: HAMAP
Cellular component	cytoplasm Inferred from electronic annotation. Source: UniProtKB-SubCell
Molecular function	3-methyl-2-oxobutanoate hydroxymethyltransferase activity Inferred from electronic annotation. Source: HAMAP magnesium ion binding 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 – 273	273	3-methyl-2-oxobutanoate hydroxymethyltransferase 1 HAMAP MF_00156		PRO_0000297333
Regions
	Region	49 – 50	2	Alpha-ketoisovalerate binding By similarity
Sites
	Active site	187	1	Proton acceptor By similarity
	Metal binding	49	1	Magnesium By similarity
	Metal binding	88	1	Magnesium By similarity
	Metal binding	120	1	Magnesium By similarity
	Binding site	88	1	Alpha-ketoisovalerate By similarity
	Binding site	118	1	Alpha-ketoisovalerate By similarity

Sequences

	Sequence		Length	Mass (Da)
	Q02K83-1 [UniParc]. Last modified November 14, 2006. Version 1. Checksum: B04678CE4EA5E11C	FASTA	273	29,802
	10 20 30 40 50 60 MSSHRPQHRL SVPDIQRRKG AGSLVALTAY STPMARLLDP HADLLLVGDS LGMVLYGMPS 70 80 90 100 110 120 TLGVSLEMMV AHTLAVMRGS RRACVVADLP FASYQESPRQ AFRNAARLLA DSGAQAVKLE 130 140 150 160 170 180 GGEEMEETVD FLVRRGIPVL AHIGLMPQQV NAMGGFKAQG RDPESAERVR RDGLAMQRGG 190 200 210 220 230 240 AFAVVIEGVG EPLARRLSEE LAIPCIGIGA SPACDGQVLV SEDLLGLSGE QVPRFVERYA 250 260 270 RLDREIDEAA RRFAEDVRER RFPEARHCFA MRE

References

[1]

"Genomic analysis reveals that Pseudomonas aeruginosa virulence is combinatorial." Lee D.G., Urbach J.M., Wu G., Liberati N.T., Feinbaum R.L., Miyata S., Diggins L.T., He J., Saucier M., Deziel E., Friedman L., Li L., Grills G., Montgomery K., Kucherlapati R., Rahme L.G., Ausubel F.M. Genome Biol. 7:R90.1-R90.14(2006) [PubMed: 17038190] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].

Cross-references

Sequence databases
EMBL GenBank DDBJ	CP000438 Genomic DNA. Translation: ABJ10779.1.
RefSeq	YP_791653.1.
3D structure databases
SMR	Q02K83. Positions 10-268.
ModBase	Search...
Protein-protein interaction databases
STRING	Q02K83.
Genome annotation databases
GeneID	4385835.
GenomeReviews	Gene locus PA14_43830 in contig CP000438_GR.
KEGG	pau:PA14_43830.
Organism-specific databases
CMR	Search...
Phylogenomic databases
eggNOG	COG0413.
HOGENOM	HBG299908.
OMA	DMMIAHG.
Family and domain databases
HAMAP	MF_00156. PanB. [Tree]
InterPro	IPR003700. Pantoate_hydroxy_MeTrfase. IPR015813. Pyrv/PenolPyrv_Kinase_cat. [Graphical view]
Gene3D	G3DSA:3.20.20.60. Pyrv/PenolPyrv_Kinase_cat. 1 hit.
PANTHER	PTHR20881. Pantoate_transf. 1 hit.
Pfam	PF02548. Pantoate_transf. 1 hit. [Graphical view]
PIRSF	PIRSF000388. Pantoate_hydroxy_MeTrfase. 1 hit.
TIGRFAMs	TIGR00222. panB. 1 hit.
ProtoNet	Search...

Entry information

Entry name

PANB1_PSEAB

Accession

Primary (citable) accession number: Q02K83

Entry history

Integrated into UniProtKB/Swiss-Prot:	July 24, 2007
Last sequence update:	November 14, 2006
Last modified:	February 9, 2010
This is version 25 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

HAMAP (High-quality Automated and Manual Annotation of microbial Proteomes)