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Protein

3-methyl-2-oxobutanoate hydroxymethyltransferase

Gene

panB

Organism
Bacillus velezensis (strain DSM 23117 / BGSC 10A6 / FZB42) (Bacillus amyloliquefaciens subsp. plantarum)
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 transferred 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. 2-dehydropantoate 2-reductase (RBAM_030040), 2-dehydropantoate 2-reductase (ylbQ), 2-dehydropantoate 2-reductase (ykpB)
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)DescriptionActionsGraphical viewLength
Metal bindingi43MagnesiumUniRule annotation1
Metal bindingi82MagnesiumUniRule annotation1
Binding sitei82Alpha-ketoisovalerateUniRule annotation1
Binding sitei112Alpha-ketoisovalerateUniRule annotation1
Metal bindingi114MagnesiumUniRule annotation1
Active sitei181Proton acceptorUniRule annotation1

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionTransferase
Biological processPantothenate biosynthesis
LigandMagnesium, Metal-binding

Enzyme and pathway databases

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:RBAM_020580
OrganismiBacillus velezensis (strain DSM 23117 / BGSC 10A6 / FZB42) (Bacillus amyloliquefaciens subsp. plantarum)
Taxonomic identifieri326423 [NCBI]
Taxonomic lineageiBacteriaFirmicutesBacilliBacillalesBacillaceaeBacillusBacillus amyloliquefaciens group
Proteomesi
  • UP000001120 Componenti: Chromosome

Subcellular locationi

  • Cytoplasm UniRule annotation

GO - Cellular componenti

Keywords - Cellular componenti

Cytoplasm

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_10000113611 – 2773-methyl-2-oxobutanoate hydroxymethyltransferaseAdd BLAST277

Interactioni

Subunit structurei

Homodecamer; pentamer of dimers.UniRule annotation

Structurei

3D structure databases

ProteinModelPortaliA7Z5Z4.
SMRiA7Z5Z4.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni43 – 44Alpha-ketoisovalerate bindingUniRule annotation2

Sequence similaritiesi

Belongs to the PanB family.UniRule annotation

Phylogenomic databases

eggNOGiENOG4105CCG. Bacteria.
COG0413. LUCA.
HOGENOMiHOG000078427.
KOiK00606.
OMAiGHIGLMP.

Family and domain databases

CDDicd06557. KPHMT-like. 1 hit.
HAMAPiMF_00156. PanB. 1 hit.
InterProiView protein in InterPro
IPR003700. Pantoate_hydroxy_MeTrfase.
IPR015813. Pyrv/PenolPyrv_Kinase-like_dom.
PANTHERiPTHR20881. PTHR20881. 1 hit.
PfamiView protein in Pfam
PF02548. Pantoate_transf. 1 hit.
PIRSFiPIRSF000388. Pantoate_hydroxy_MeTrfase. 1 hit.
SUPFAMiSSF51621. SSF51621. 1 hit.
TIGRFAMsiTIGR00222. panB. 1 hit.

Sequencei

Sequence statusi: Complete.

A7Z5Z4-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MKTKLDFVKM KENGEPIVML TAYDYPQAKL AEQAGVDMIL VGDSLGMVVL
60 70 80 90 100
GLDSTVGVTV SDMIHHTKAV KRGAKNTFIV TDMPFMSYHL SKEDTLKNAA
110 120 130 140 150
AIIQESGADA LKLEGGDGVF ESIRALTLGG IPVVSHLGLT PQSVGVLGGY
160 170 180 190 200
KVQGKDEQSA KKLIEDSIKC EQAGAMMLVL ECVPAELTAK IKEEVSIPVI
210 220 230 240 250
GIGAGSKADG QVLVYHDVVG HGVDRTPKFV KQYAKIDGTI ESALSGYVRD
260 270
VKERVFPEEK HSFQINQTVL QGLYGGK
Length:277
Mass (Da):29,691
Last modified:October 23, 2007 - v1
Checksum:iC0545CC0424C34C3
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000560 Genomic DNA. Translation: ABS74420.1.
RefSeqiWP_012117845.1. NC_009725.1.

Genome annotation databases

EnsemblBacteriaiABS74420; ABS74420; RBAM_020580.
KEGGibay:RBAM_020580.

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.

Entry informationi

Entry nameiPANB_BACVZ
AccessioniPrimary (citable) accession number: A7Z5Z4
Entry historyiIntegrated into UniProtKB/Swiss-Prot: January 15, 2008
Last sequence update: October 23, 2007
Last modified: July 5, 2017
This is version 70 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome

Documents

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