Skip Header

You are using a version of browser that may not display all the features of this website. Please consider upgrading your browser.
Protein

4-hydroxythreonine-4-phosphate dehydrogenase

Gene

pdxA

Organism
Caulobacter crescentus (strain ATCC 19089 / CB15)
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 sitei133SubstrateUniRule annotation1
Binding sitei134SubstrateUniRule annotation1
Metal bindingi169Divalent metal cation; shared with dimeric partnerUniRule annotation1
Metal bindingi214Divalent metal cation; shared with dimeric partnerUniRule annotation1
Metal bindingi269Divalent metal cation; shared with dimeric partnerUniRule annotation1
Binding sitei277SubstrateUniRule annotation1
Binding sitei286SubstrateUniRule annotation1
Binding sitei295SubstrateUniRule 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

BioCyciCAULO:CC1686-MONOMER.
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:CC_1686
OrganismiCaulobacter crescentus (strain ATCC 19089 / CB15)
Taxonomic identifieri190650 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaAlphaproteobacteriaCaulobacteralesCaulobacteraceaeCaulobacter
Proteomesi
  • UP000001816 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_00001888031 – 3334-hydroxythreonine-4-phosphate dehydrogenaseAdd BLAST333

Interactioni

Subunit structurei

Homodimer.UniRule annotation

Protein-protein interaction databases

STRINGi190650.CC_1686.

Structurei

3D structure databases

ProteinModelPortaliQ9A7N4.
SMRiQ9A7N4.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the PdxA family.UniRule annotation

Phylogenomic databases

eggNOGiENOG4105CEZ. Bacteria.
COG1995. LUCA.
HOGENOMiHOG000221593.
KOiK00097.
OMAiYVWDTPL.

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.

Q9A7N4-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MTSRPLAISA GDPAGVGAEI IAKAWRALRQ DGPTFVVIGD AQLLASAGGG
60 70 80 90 100
VKVRAVTRPQ EAAQVFPDAL PVLDIPVLSP VVYGRPSPSH APQIIRWIET
110 120 130 140 150
GVGLALSGAV SGLVTAPIAK APLYEAGFQF PGHTEFLAEL TAAASMVGAR
160 170 180 190 200
GPVMMLAAGD LRATLVTIHT ALAKAPSALT TEAIINSGLV TAQALRKDFG
210 220 230 240 250
IAEPRLAVAA LNPHAGEGGA LGREEIDIIA PAVEALRALG VQASGPAPAD
260 270 280 290 300
TLFHPEARAR YDGVLCMYHD QALIPVKMLD FWGGVNITLG LPIVRTSPDH
310 320 330
GTGFDIAGRG IARPDSLIAA IQLAAKIAAR RGV
Length:333
Mass (Da):34,206
Last modified:June 1, 2001 - v1
Checksum:i0C6689D5E267D112
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AE005673 Genomic DNA. Translation: AAK23664.1.
PIRiD87458.
RefSeqiNP_420496.1. NC_002696.2.
WP_010919557.1. NC_002696.2.

Genome annotation databases

EnsemblBacteriaiAAK23664; AAK23664; CC_1686.
GeneIDi941101.
KEGGiccr:CC_1686.
PATRICi21300398. VBICauCre124313_1715.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AE005673 Genomic DNA. Translation: AAK23664.1.
PIRiD87458.
RefSeqiNP_420496.1. NC_002696.2.
WP_010919557.1. NC_002696.2.

3D structure databases

ProteinModelPortaliQ9A7N4.
SMRiQ9A7N4.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi190650.CC_1686.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiAAK23664; AAK23664; CC_1686.
GeneIDi941101.
KEGGiccr:CC_1686.
PATRICi21300398. VBICauCre124313_1715.

Phylogenomic databases

eggNOGiENOG4105CEZ. Bacteria.
COG1995. LUCA.
HOGENOMiHOG000221593.
KOiK00097.
OMAiYVWDTPL.

Enzyme and pathway databases

UniPathwayiUPA00244; UER00312.
BioCyciCAULO:CC1686-MONOMER.

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_CAUCR
AccessioniPrimary (citable) accession number: Q9A7N4
Entry historyi
Integrated into UniProtKB/Swiss-Prot: January 31, 2002
Last sequence update: June 1, 2001
Last modified: November 2, 2016
This is version 95 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, 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.