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Protein

4-hydroxythreonine-4-phosphate dehydrogenase

Gene

pdxA

Organism
Rhodopseudomonas palustris (strain TIE-1)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Protein inferred from homologyi

Functioni

Catalyzes the NAD(P)-dependent oxidation of 4-(phosphohydroxy)-L-threonine (HTP) into 2-amino-3-oxo-4-(phosphohydroxy)butyric acid which spontaneously decarboxylates to form 3-amino-2-oxopropyl phosphate (AHAP).UniRule annotation

Catalytic activityi

4-phosphonooxy-L-threonine + NAD+ = 3-amino-2-oxopropyl phosphate + CO2 + NADH.

Cofactori

Zn2+UniRule annotation, Mg2+UniRule annotation, Co2+UniRule annotationNote: Binds 1 divalent metal cation per subunit. Can use ions such as Zn2+, Mg2+ or Co2+.UniRule annotation

Pathwayi: pyridoxine 5'-phosphate biosynthesis

This protein is involved in step 4 of the subpathway that synthesizes pyridoxine 5'-phosphate from D-erythrose 4-phosphate.UniRule annotation
Proteins known to be involved in the 5 steps of the subpathway in this organism are:
  1. no protein annotated in this organism
  2. no protein annotated in this organism
  3. no protein annotated in this organism
  4. 4-hydroxythreonine-4-phosphate dehydrogenase (pdxA)
  5. Pyridoxine 5'-phosphate synthase (pdxJ)
This subpathway is part of the pathway pyridoxine 5'-phosphate 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 pyridoxine 5'-phosphate from D-erythrose 4-phosphate, the pathway pyridoxine 5'-phosphate biosynthesis and in Cofactor biosynthesis.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Binding sitei139SubstrateUniRule annotation1
Binding sitei140SubstrateUniRule annotation1
Metal bindingi173Divalent metal cation; shared with dimeric partnerUniRule annotation1
Metal bindingi218Divalent metal cation; shared with dimeric partnerUniRule annotation1
Metal bindingi273Divalent metal cation; shared with dimeric partnerUniRule annotation1
Binding sitei281SubstrateUniRule annotation1
Binding sitei290SubstrateUniRule annotation1
Binding sitei299SubstrateUniRule annotation1

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Oxidoreductase

Keywords - Biological processi

Pyridoxine biosynthesis

Keywords - Ligandi

Cobalt, Magnesium, Metal-binding, NAD, NADP, Zinc

Enzyme and pathway databases

UniPathwayiUPA00244; UER00312.

Names & Taxonomyi

Protein namesi
Recommended name:
4-hydroxythreonine-4-phosphate dehydrogenaseUniRule annotation (EC:1.1.1.262UniRule annotation)
Alternative name(s):
4-(phosphohydroxy)-L-threonine dehydrogenaseUniRule annotation
Gene namesi
Name:pdxAUniRule annotation
Ordered Locus Names:Rpal_3475
OrganismiRhodopseudomonas palustris (strain TIE-1)
Taxonomic identifieri395960 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaAlphaproteobacteriaRhizobialesBradyrhizobiaceaeRhodopseudomonas
Proteomesi
  • UP000001725 Componenti: Chromosome

Subcellular locationi

  • Cytoplasm UniRule annotation

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Cytoplasm

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_10001282591 – 3374-hydroxythreonine-4-phosphate dehydrogenaseAdd BLAST337

Interactioni

Subunit structurei

Homodimer.UniRule annotation

Structurei

3D structure databases

ProteinModelPortaliB3Q9S3.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the PdxA family.UniRule annotation

Phylogenomic databases

HOGENOMiHOG000221592.
KOiK00097.
OMAiYVWDTPL.
OrthoDBiPOG091H03XD.

Family and domain databases

Gene3Di3.40.718.10. 1 hit.
HAMAPiMF_00536. PdxA. 1 hit.
InterProiIPR024084. IsoPropMal-DH-like_dom.
IPR005255. PdxA.
[Graphical view]
PfamiPF04166. PdxA. 1 hit.
[Graphical view]
TIGRFAMsiTIGR00557. pdxA. 1 hit.

Sequencei

Sequence statusi: Complete.

B3Q9S3-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MTGMAKPLAL TLGEPAGIGP DIALAAWLKR EQHGLPPFYL LGDAGCLSRC
60 70 80 90 100
AKLLGLDVPL AEVKAEDAAA AFATTLPVVS TGQIATATPG QPDATSAPAA
110 120 130 140 150
IASIEHAVAD VRSGRAAAVV TNPIAKSVLY QAGFHHPGHT EFLAELAKRD
160 170 180 190 200
GIVPQPVMML WCPALAVVPV TIHVSLRDAI TQLTTDLIVS TARIVVKDLR
210 220 230 240 250
ERLGIAQPRL ALAGLNPHAG EDGALGQEDR AVVAPAVAIL RREGVDARGP
260 270 280 290 300
LPADTMFHAA ARKTYDCAIC MYHDQALIPI KTIAFDEGVN VTLGLPFIRT
310 320 330
SPDHGTAFDI AGSGQANPSS LIAALKLAAQ MASAKTA
Length:337
Mass (Da):34,927
Last modified:September 2, 2008 - v1
Checksum:i7C7AECA3938A5127
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP001096 Genomic DNA. Translation: ACF01976.1.
RefSeqiWP_011158611.1. NC_011004.1.

Genome annotation databases

EnsemblBacteriaiACF01976; ACF01976; Rpal_3475.
KEGGirpt:Rpal_3475.
PATRICi23311442. VBIRhoPal88240_3520.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP001096 Genomic DNA. Translation: ACF01976.1.
RefSeqiWP_011158611.1. NC_011004.1.

3D structure databases

ProteinModelPortaliB3Q9S3.
ModBaseiSearch...
MobiDBiSearch...

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiACF01976; ACF01976; Rpal_3475.
KEGGirpt:Rpal_3475.
PATRICi23311442. VBIRhoPal88240_3520.

Phylogenomic databases

HOGENOMiHOG000221592.
KOiK00097.
OMAiYVWDTPL.
OrthoDBiPOG091H03XD.

Enzyme and pathway databases

UniPathwayiUPA00244; UER00312.

Family and domain databases

Gene3Di3.40.718.10. 1 hit.
HAMAPiMF_00536. PdxA. 1 hit.
InterProiIPR024084. IsoPropMal-DH-like_dom.
IPR005255. PdxA.
[Graphical view]
PfamiPF04166. PdxA. 1 hit.
[Graphical view]
TIGRFAMsiTIGR00557. pdxA. 1 hit.
ProtoNetiSearch...

Entry informationi

Entry nameiPDXA_RHOPT
AccessioniPrimary (citable) accession number: B3Q9S3
Entry historyi
Integrated into UniProtKB/Swiss-Prot: April 14, 2009
Last sequence update: September 2, 2008
Last modified: November 2, 2016
This is version 60 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Miscellaneous

The active site is located at the dimer interface.UniRule annotation

Keywords - Technical termi

Complete 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.