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Protein

3-methyl-2-oxobutanoate hydroxymethyltransferase

Gene

panB

Organism
Alkalilimnicola ehrlichii (strain ATCC BAA-1101 / DSM 17681 / MLHE-1)
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 bindingi54 – 541MagnesiumUniRule annotation
Metal bindingi93 – 931MagnesiumUniRule annotation
Binding sitei93 – 931Alpha-ketoisovalerateUniRule annotation
Binding sitei122 – 1221Alpha-ketoisovalerateUniRule annotation
Metal bindingi124 – 1241MagnesiumUniRule annotation
Active sitei191 – 1911Proton 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

BioCyciAEHR187272:GHAX-583-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:Mlg_0564
OrganismiAlkalilimnicola ehrlichii (strain ATCC BAA-1101 / DSM 17681 / MLHE-1)
Taxonomic identifieri187272 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaChromatialesEctothiorhodospiraceaeAlkalilimnicola
Proteomesi
  • UP000001962 Componenti: Chromosome

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 – 2772773-methyl-2-oxobutanoate hydroxymethyltransferasePRO_0000297212Add
BLAST

Interactioni

Subunit structurei

Homodecamer; pentamer of dimers.UniRule annotation

Protein-protein interaction databases

STRINGi187272.Mlg_0564.

Structurei

3D structure databases

ProteinModelPortaliQ0AB69.
SMRiQ0AB69. Positions 12-274.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Regioni54 – 552Alpha-ketoisovalerate bindingUniRule annotation

Sequence similaritiesi

Belongs to the PanB family.UniRule annotation

Phylogenomic databases

eggNOGiENOG4105CCG. Bacteria.
COG0413. LUCA.
HOGENOMiHOG000078427.
KOiK00606.
OMAiDMLGFFD.
OrthoDBiPOG091H02K8.

Family and domain databases

CDDicd06557. KPHMT-like. 1 hit.
Gene3Di3.20.20.60. 1 hit.
HAMAPiMF_00156. PanB. 1 hit.
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.

Q0AB69-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MYTGDPPQTR RPVTVGRLQR MKADGQKVVA LTAYDYTFAV AEDQAGVDVI
60 70 80 90 100
LVGDSLGMVV QGRDTTVPVT VEEMVYHTRC VTAARPSALV MADMPFMSYA
110 120 130 140 150
TLEDGLRNAA RLMQEGGAQM IKLEGAGEQA ELVARLARAG IPVCAHLGLQ
160 170 180 190 200
PQLVHKLGGY RVQGRESAAA DAMLADAQAL EAAGADLLLL ECVPAELGRR
210 220 230 240 250
ISQGLEIPVI GIGAGPDCDG QILVLQDILG VTPGRIPRFS KNFMNGAGSI
260 270
QCALQAYVQA VRSGAFPDAA HSFGGQG
Length:277
Mass (Da):29,131
Last modified:October 17, 2006 - v1
Checksum:i5DC34BA88EDF06AF
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000453 Genomic DNA. Translation: ABI55918.1.
RefSeqiWP_011628313.1. NC_008340.1.

Genome annotation databases

EnsemblBacteriaiABI55918; ABI55918; Mlg_0564.
KEGGiaeh:Mlg_0564.
PATRICi20860320. VBIAlkEhr114327_0555.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000453 Genomic DNA. Translation: ABI55918.1.
RefSeqiWP_011628313.1. NC_008340.1.

3D structure databases

ProteinModelPortaliQ0AB69.
SMRiQ0AB69. Positions 12-274.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi187272.Mlg_0564.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiABI55918; ABI55918; Mlg_0564.
KEGGiaeh:Mlg_0564.
PATRICi20860320. VBIAlkEhr114327_0555.

Phylogenomic databases

eggNOGiENOG4105CCG. Bacteria.
COG0413. LUCA.
HOGENOMiHOG000078427.
KOiK00606.
OMAiDMLGFFD.
OrthoDBiPOG091H02K8.

Enzyme and pathway databases

UniPathwayiUPA00028; UER00003.
BioCyciAEHR187272:GHAX-583-MONOMER.

Family and domain databases

CDDicd06557. KPHMT-like. 1 hit.
Gene3Di3.20.20.60. 1 hit.
HAMAPiMF_00156. PanB. 1 hit.
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...

Entry informationi

Entry nameiPANB_ALKEH
AccessioniPrimary (citable) accession number: Q0AB69
Entry historyi
Integrated into UniProtKB/Swiss-Prot: July 24, 2007
Last sequence update: October 17, 2006
Last modified: September 7, 2016
This is version 70 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.