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Protein

3-methyl-2-oxobutanoate hydroxymethyltransferase

Gene

panB

Organism
Agrobacterium vitis (strain S4 / ATCC BAA-846) (Rhizobium vitis (strain S4))
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Protein inferred from homologyi

Functioni

Catalyzes the reversible reaction in which hydroxymethyl group from 5,10-methylenetetrahydrofolate is tranferred onto alpha-ketoisovalerate to form ketopantoate.UniRule annotation

Catalytic activityi

5,10-methylenetetrahydrofolate + 3-methyl-2-oxobutanoate + H2O = tetrahydrofolate + 2-dehydropantoate.UniRule annotation

Cofactori

Mg2+UniRule annotationNote: Binds 1 Mg2+ ion per subunit.UniRule annotation

Pathwayi: (R)-pantothenate biosynthesis

This protein is involved in step 1 of the subpathway that synthesizes (R)-pantoate from 3-methyl-2-oxobutanoate.UniRule annotation
Proteins known to be involved in the 2 steps of the subpathway in this organism are:
  1. 3-methyl-2-oxobutanoate hydroxymethyltransferase (panB)
  2. no protein annotated in this organism
This subpathway is part of the pathway (R)-pantothenate biosynthesis, which is itself part of Cofactor biosynthesis.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes (R)-pantoate from 3-methyl-2-oxobutanoate, the pathway (R)-pantothenate biosynthesis and in Cofactor biosynthesis.

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Metal bindingi49 – 491MagnesiumUniRule annotation
Metal bindingi88 – 881MagnesiumUniRule annotation
Binding sitei88 – 881Alpha-ketoisovalerateUniRule annotation
Binding sitei118 – 1181Alpha-ketoisovalerateUniRule annotation
Metal bindingi120 – 1201MagnesiumUniRule annotation
Active sitei187 – 1871Proton acceptorUniRule annotation

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Transferase

Keywords - Biological processi

Pantothenate biosynthesis

Keywords - Ligandi

Magnesium, Metal-binding

Enzyme and pathway databases

BioCyciAVIT311402:GH2Y-2141-MONOMER.
UniPathwayiUPA00028; UER00003.

Names & Taxonomyi

Protein namesi
Recommended name:
3-methyl-2-oxobutanoate hydroxymethyltransferaseUniRule annotation (EC:2.1.2.11UniRule annotation)
Alternative name(s):
Ketopantoate hydroxymethyltransferaseUniRule annotation
Short name:
KPHMTUniRule annotation
Gene namesi
Name:panBUniRule annotation
Ordered Locus Names:Avi_2847
OrganismiAgrobacterium vitis (strain S4 / ATCC BAA-846) (Rhizobium vitis (strain S4))
Taxonomic identifieri311402 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaAlphaproteobacteriaRhizobialesRhizobiaceaeRhizobium/Agrobacterium groupAgrobacterium
Proteomesi
  • UP000001596 Componenti: Chromosome 1

Subcellular locationi

  • Cytoplasm UniRule annotation

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Cytoplasm

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 2742743-methyl-2-oxobutanoate hydroxymethyltransferasePRO_1000123364Add
BLAST

Interactioni

Subunit structurei

Homodecamer; pentamer of dimers.UniRule annotation

Protein-protein interaction databases

STRINGi311402.Avi_2847.

Family & Domainsi

Region

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Regioni49 – 502Alpha-ketoisovalerate bindingUniRule annotation

Sequence similaritiesi

Belongs to the PanB family.UniRule annotation

Phylogenomic databases

eggNOGiENOG4105CCG. Bacteria.
COG0413. LUCA.
HOGENOMiHOG000078427.
KOiK00606.
OMAiDMLGFFD.
OrthoDBiEOG63C0WN.

Family and domain databases

Gene3Di3.20.20.60. 1 hit.
HAMAPiMF_00156. PanB.
InterProiIPR003700. Pantoate_hydroxy_MeTrfase.
IPR015813. Pyrv/PenolPyrv_Kinase-like_dom.
[Graphical view]
PANTHERiPTHR20881. PTHR20881. 1 hit.
PfamiPF02548. Pantoate_transf. 1 hit.
[Graphical view]
PIRSFiPIRSF000388. Pantoate_hydroxy_MeTrfase. 1 hit.
SUPFAMiSSF51621. SSF51621. 1 hit.
TIGRFAMsiTIGR00222. panB. 1 hit.

Sequencei

Sequence statusi: Complete.

B9JXS3-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MSAPPRQKRL TPTTIAALKH QRPIVSLTAY TTPMARLMDA HCDLLLVGDS
60 70 80 90 100
LGMVLYGLDT TVGVTLEMMI AHGQAVLRGV NRACVIIDMP FGSYQESREQ
110 120 130 140 150
AFRNAARIMK ETGCDGIKLE GGTEMAETVA FLVERGIPVL GHVGLMPQQV
160 170 180 190 200
NTSGGYRSKG HDEAEADKIR ADATAIAKAG AFALVIEGTV EPLAREITQT
210 220 230 240 250
LSVPTIGIGA SPACDGQILV SDDMLGLFND FKPRFVKHYA ELAGVISKAV
260 270
EDYATEVKAR QFPGPEHTFQ PRKS
Length:274
Mass (Da):29,495
Last modified:March 24, 2009 - v1
Checksum:i45824C5D3CDEEAB9
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000633 Genomic DNA. Translation: ACM37050.1.
RefSeqiWP_015916471.1. NC_011989.1.

Genome annotation databases

EnsemblBacteriaiACM37050; ACM37050; Avi_2847.
KEGGiavi:Avi_2847.
PATRICi20829704. VBIAgrVit37146_4503.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000633 Genomic DNA. Translation: ACM37050.1.
RefSeqiWP_015916471.1. NC_011989.1.

3D structure databases

ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi311402.Avi_2847.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiACM37050; ACM37050; Avi_2847.
KEGGiavi:Avi_2847.
PATRICi20829704. VBIAgrVit37146_4503.

Phylogenomic databases

eggNOGiENOG4105CCG. Bacteria.
COG0413. LUCA.
HOGENOMiHOG000078427.
KOiK00606.
OMAiDMLGFFD.
OrthoDBiEOG63C0WN.

Enzyme and pathway databases

UniPathwayiUPA00028; UER00003.
BioCyciAVIT311402:GH2Y-2141-MONOMER.

Family and domain databases

Gene3Di3.20.20.60. 1 hit.
HAMAPiMF_00156. PanB.
InterProiIPR003700. Pantoate_hydroxy_MeTrfase.
IPR015813. Pyrv/PenolPyrv_Kinase-like_dom.
[Graphical view]
PANTHERiPTHR20881. PTHR20881. 1 hit.
PfamiPF02548. Pantoate_transf. 1 hit.
[Graphical view]
PIRSFiPIRSF000388. Pantoate_hydroxy_MeTrfase. 1 hit.
SUPFAMiSSF51621. SSF51621. 1 hit.
TIGRFAMsiTIGR00222. panB. 1 hit.
ProtoNetiSearch...

Publicationsi

  1. Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: S4 / ATCC BAA-846.

Entry informationi

Entry nameiPANB_AGRVS
AccessioniPrimary (citable) accession number: B9JXS3
Entry historyi
Integrated into UniProtKB/Swiss-Prot: July 28, 2009
Last sequence update: March 24, 2009
Last modified: November 11, 2015
This is version 50 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  2. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.