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Aliases for PDXK Gene

Aliases for PDXK Gene

  • Pyridoxal Kinase 2 3 5
  • Pyridoxal (Pyridoxine, Vitamin B6) Kinase 2 3
  • Pyridoxine Kinase 3 4
  • EC 4 61
  • C21orf124 3 4
  • C21orf97 3 4
  • PKH 3 4
  • PNK 3 4
  • Epididymis Secretory Sperm Binding Protein Li 1a 3
  • Chromosome 21 Open Reading Frame 124 2
  • Chromosome 21 Open Reading Frame 97 2
  • Pyridoxamine Kinase 3
  • Vitamin B6 Kinase 3
  • HEL-S-1a 3
  • PRED79 3

External Ids for PDXK Gene

Previous HGNC Symbols for PDXK Gene

  • C21orf97
  • C21orf124

Previous GeneCards Identifiers for PDXK Gene

  • GC21P041648
  • GC21P043996
  • GC21P043997
  • GC21P043998
  • GC21P043964
  • GC21P043965
  • GC21P045138
  • GC21P030506

Summaries for PDXK Gene

Entrez Gene Summary for PDXK Gene

  • The protein encoded by this gene phosphorylates vitamin B6, a step required for the conversion of vitamin B6 to pyridoxal-5-phosphate, an important cofactor in intermediary metabolism. The encoded protein is cytoplasmic and probably acts as a homodimer. Alternatively spliced transcript variants have been described, but their biological validity has not been determined. [provided by RefSeq, Jul 2008]

GeneCards Summary for PDXK Gene

PDXK (Pyridoxal Kinase) is a Protein Coding gene. Diseases associated with PDXK include Bartter Syndrome, Type 3. Among its related pathways are Innate Immune System and Metabolism of water-soluble vitamins and cofactors. GO annotations related to this gene include protein homodimerization activity and pyridoxal phosphate binding.

UniProtKB/Swiss-Prot for PDXK Gene

  • Required for synthesis of pyridoxal-5-phosphate from vitamin B6.

Gene Wiki entry for PDXK Gene

No data available for CIViC summary , Tocris Summary , PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for PDXK Gene

Genomics for PDXK Gene

Regulatory Elements for PDXK Gene

Enhancers for PDXK Gene
GeneHancer Identifier Enhancer Score Enhancer Sources Gene-Enhancer Score TSS distance (kb) Number of Genes Away Size (kb) Transcription Factor Binding Sites within enhancer Gene Targets for Enhancer
GH21G043643 1.6 FANTOM5 Ensembl ENCODE 22.3 -73.4 -73426 3.4 PKNOX1 ARNT ARID4B SIN3A DMAP1 ZNF2 ZBTB7B SLC30A9 ZNF766 ZNF143 PDXK WDR4 SIK1 PWP2 FRGCA U2AF1 RRP1B HSF2BP MIR6070
GH21G043509 2.1 FANTOM5 Ensembl ENCODE dbSUPER 14.8 -202.5 -202483 14.1 CREB3L1 MLX AGO1 ZFP64 FEZF1 DMAP1 YY1 SLC30A9 ZNF143 ZNF263 WDR4 HSF2BP U2AF1 PWP2 ENSG00000184441 PDXK ENSG00000233754 SIK1 RPL31P1 PIR54224
GH21G043596 2 FANTOM5 Ensembl ENCODE dbSUPER 14.1 -118.3 -118334 9.4 HDGF FOXA2 ARNT MLX ARID4B DMAP1 YBX1 ZNF2 ZNF302 FOS WDR4 U2AF1 ENSG00000233754 ENSG00000184441 PDXK HSF2BP FRGCA MTND5P1 TRAPPC10 CSTB
GH21G043492 2 FANTOM5 Ensembl ENCODE dbSUPER 12.9 -220.3 -220268 12.4 HDGF PKNOX1 FOXA2 MLX SIN3A ARID4B DMAP1 YBX1 ZNF2 ZBTB7B ENSG00000184441 HSF2BP PDXK WDR4 U2AF1 PWP2 MTND5P1 SIK1 PIR54224 RPL31P1
GH21G043710 1.8 FANTOM5 Ensembl ENCODE dbSUPER 13.1 -6.7 -6693 3.3 SIN3A ZNF121 FOS ZNF592 SREBF1 ZNF579 MBD2 MAFF SMARCA4 PBX2 PDXK RRP1B SIK1 HSF2BP PIR47157
- Elite enhancer and/or Elite enhancer-gene association Download GeneHancer data dump

Enhancers around PDXK on UCSC Golden Path with GeneCards custom track

Promoters for PDXK Gene
Ensembl Regulatory Elements (ENSRs) TSS Distance (bp) Size (bp) Binding Sites for Transcription Factors within promoters

Genomic Location for PDXK Gene

43,719,094 bp from pter
43,762,307 bp from pter
43,214 bases
Plus strand

Genomic View for PDXK Gene

Genes around PDXK on UCSC Golden Path with GeneCards custom track

Cytogenetic band:
PDXK Gene in genomic location: bands according to Ensembl, locations according to GeneLoc (and/or Entrez Gene and/or Ensembl if different)
Genomic Location for PDXK Gene
GeneLoc Logo Genomic Neighborhood Exon StructureGene Density

RefSeq DNA sequence for PDXK Gene

Proteins for PDXK Gene

  • Protein details for PDXK Gene (UniProtKB/Swiss-Prot)

    Protein Symbol:
    Recommended name:
    Pyridoxal kinase
    Protein Accession:
    Secondary Accessions:
    • Q7Z2Y0
    • Q9BS02

    Protein attributes for PDXK Gene

    312 amino acids
    Molecular mass:
    35102 Da
    Name=Zn(2+); Xref=ChEBI:CHEBI:29105; Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
    Quaternary structure:
    • Homodimer.

    Three dimensional structures from OCA and Proteopedia for PDXK Gene

    Alternative splice isoforms for PDXK Gene


neXtProt entry for PDXK Gene

Selected DME Specific Peptides for PDXK Gene


Post-translational modifications for PDXK Gene

  • Ubiquitination at Lys76, posLast=139139, and posLast=275275
  • Modification sites at PhosphoSitePlus

Domains & Families for PDXK Gene

Protein Domains for PDXK Gene

Suggested Antigen Peptide Sequences for PDXK Gene

GenScript: Design optimal peptide antigens:

Graphical View of Domain Structure for InterPro Entry



  • Belongs to the pyridoxine kinase family.
  • Belongs to the pyridoxine kinase family.
genes like me logo Genes that share domains with PDXK: view

No data available for Gene Families for PDXK Gene

Function for PDXK Gene

Molecular function for PDXK Gene

GENATLAS Biochemistry:
pyridoxal kinase,ubiquitously expressed,repressed by ligands of the benzodiazepine receptor
UniProtKB/Swiss-Prot BiophysicochemicalProperties:
pH dependence: Optimum pH is 5.5-6.0.;
UniProtKB/Swiss-Prot CatalyticActivity:
ATP + pyridoxal = ADP + pyridoxal 5-phosphate.
UniProtKB/Swiss-Prot Function:
Required for synthesis of pyridoxal-5-phosphate from vitamin B6.

Enzyme Numbers (IUBMB) for PDXK Gene

Gene Ontology (GO) - Molecular Function for PDXK Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0000287 magnesium ion binding IDA 17766369
GO:0005524 ATP binding IDA,IEA 16600635
GO:0008270 zinc ion binding IDA 10987144
GO:0008478 pyridoxal kinase activity IEA,TAS --
GO:0016301 kinase activity IEA --
genes like me logo Genes that share ontologies with PDXK: view
genes like me logo Genes that share phenotypes with PDXK: view

Animal Models for PDXK Gene

MGI Knock Outs for PDXK:
  • Pdxk tm1a(EUCOMM)Wtsi

Animal Model Products

  • Taconic Biosciences Mouse Models for PDXK

Inhibitory RNA Products

Clone Products

  • Addgene plasmids for PDXK
  • Applied Biological Materials Clones for PDXK

No data available for Human Phenotype Ontology , Transcription Factor Targets and HOMER Transcription for PDXK Gene

Localization for PDXK Gene

Subcellular locations from UniProtKB/Swiss-Prot for PDXK Gene


Subcellular locations from

Extracellular space Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi Apparatus Nucleus Mitochondrion 0 1 2 3 4 5 Confidence
COMPARTMENTS Subcellular localization image for PDXK gene
Compartment Confidence
extracellular 5
nucleus 5
cytosol 5
plasma membrane 2
cytoskeleton 2

Gene Ontology (GO) - Cellular Components for PDXK Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0005576 extracellular region TAS --
GO:0005634 nucleus IDA 21630459
GO:0005737 cytoplasm IEA --
GO:0005829 cytosol IDA,TAS --
GO:0034774 secretory granule lumen TAS --
genes like me logo Genes that share ontologies with PDXK: view

Pathways & Interactions for PDXK Gene

genes like me logo Genes that share pathways with PDXK: view

Pathways by source for PDXK Gene

Gene Ontology (GO) - Biological Process for PDXK Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0008283 cell proliferation IDA 10930737
GO:0009443 pyridoxal 5-phosphate salvage IEA,IBA --
GO:0016310 phosphorylation IEA --
GO:0042816 vitamin B6 metabolic process TAS,IBA --
GO:0042823 pyridoxal phosphate biosynthetic process IDA 9099727
genes like me logo Genes that share ontologies with PDXK: view

No data available for SIGNOR curated interactions for PDXK Gene

Drugs & Compounds for PDXK Gene

(15) Drugs for PDXK Gene - From: DrugBank, HMDB, and Novoseek

Name Status Disease Links Group Role Mechanism of Action Clinical Trials
Pyridoxal Approved Nutra Target 187
Pyridoxine Approved, Vet_approved Nutra Target, ligand 188,188
Potassium Approved Pharma 0
Adenosine triphosphate Approved Nutra 0
(2R)-2-({6-[benzyl(methyl)amino]-9-isopropyl-9H-purin-2-yl}amino)butan-1-ol Experimental Pharma Target 0

(7) Additional Compounds for PDXK Gene - From: HMDB and Novoseek

Name Synonyms Role CAS Number PubChem IDs PubMed IDs
  • Adenosindiphosphorsaeure
  • Adenosine 5'-pyrophosphate
  • Adenosine diphosphate
  • Adenosine pyrophosphate
  • Adenosine-5'-diphosphate
Full agonist, Agonist 58-64-0
Pyridoxamine 5'-phosphate
  • Pyridoxamine 5'-phosphate
genes like me logo Genes that share compounds with PDXK: view

Transcripts for PDXK Gene

Unigene Clusters for PDXK Gene

Pyridoxal (pyridoxine, vitamin B6) kinase:
Representative Sequences:

Inhibitory RNA Products

Clone Products

  • Addgene plasmids for PDXK
  • Applied Biological Materials Clones for PDXK

Alternative Splicing Database (ASD) splice patterns (SP) for PDXK Gene

ExUns: 1 ^ 2 ^ 3 ^ 4a · 4b · 4c · 4d ^ 5a · 5b · 5c ^ 6 ^ 7a · 7b ^ 8 ^ 9a · 9b ^ 10 ^ 11 ^ 12a · 12b ^ 13 ^ 14 ^ 15 ^ 16a · 16b ^ 17 ^
SP1: - - - - - - - - - - - - - - -
SP2: - - - - - - - - - - - - - - - -
SP3: - -
SP5: - - - - - - - - -
SP6: - - - - - - - - - - - - -
SP7: - - -
SP8: - -
SP9: - - -
SP10: - - - - - - - - -
SP12: -
SP13: - - - - -

ExUns: 18a · 18b · 18c · 18d
SP8: -

Relevant External Links for PDXK Gene

GeneLoc Exon Structure for
ECgene alternative splicing isoforms for

Expression for PDXK Gene

mRNA expression in normal human tissues from GTEx, Illumina, BioGPS, and CGAP SAGE for PDXK Gene

mRNA expression in embryonic tissues and stem cells from LifeMap Discovery

Protein differential expression in normal tissues from HIPED for PDXK Gene

This gene is overexpressed in Nasopharynx (8.6).

Integrated Proteomics: protein expression in normal tissues and cell lines from ProteomicsDB, PaxDb, MaxQB, and MOPED for PDXK Gene

Protein tissue co-expression partners for PDXK Gene

- Elite partner

NURSA nuclear receptor signaling pathways regulating expression of PDXK Gene:


SOURCE GeneReport for Unigene cluster for PDXK Gene:


mRNA Expression by UniProt/SwissProt for PDXK Gene:

Tissue specificity: Ubiquitous. Isoform 3 is detected in adult testis and spermatozoa.

Evidence on tissue expression from TISSUES for PDXK Gene

  • Nervous system(4.7)
  • Liver(4.5)
  • Eye(4.3)
  • Lung(3.9)
  • Bone marrow(2.8)
  • Intestine(2.6)
  • Pancreas(2.4)
  • Kidney(2.3)
  • Muscle(2.2)
  • Blood(2.1)
  • Heart(2.1)
  • Spleen(2)
genes like me logo Genes that share expression patterns with PDXK: view

No data available for mRNA differential expression in normal tissues and Phenotype-based relationships between genes and organs from Gene ORGANizer for PDXK Gene

Orthologs for PDXK Gene

This gene was present in the common ancestor of eukaryotes.

Orthologs for PDXK Gene

Organism Taxonomy Gene Similarity Type Details
(Pan troglodytes)
Mammalia PDXK 34 35
  • 98.82 (n)
(Bos Taurus)
Mammalia PDXK 34 35
  • 86 (n)
(Mus musculus)
Mammalia Pdxk 34 16 35
  • 84.72 (n)
(Canis familiaris)
Mammalia PDXK 34 35
  • 84.14 (n)
(Rattus norvegicus)
Mammalia Pdxk 34
  • 83.55 (n)
(Monodelphis domestica)
Mammalia PDXK 35
  • 78 (a)
(Ornithorhynchus anatinus)
Mammalia PDXK 35
  • 75 (a)
(Gallus gallus)
Aves PDXK 34 35
  • 75.46 (n)
(Anolis carolinensis)
Reptilia PDXK 35
  • 80 (a)
tropical clawed frog
(Silurana tropicalis)
Amphibia pdxk 34
  • 70.44 (n)
(Danio rerio)
Actinopterygii PDXK (1 of 3) 35
  • 74 (a)
LOC100535341 34
  • 69.3 (n)
pdxkb 35
  • 67 (a)
pdxka 35
  • 65 (a)
rainbow trout
(Oncorhynchus mykiss)
Actinopterygii Omy.60 34
fruit fly
(Drosophila melanogaster)
Insecta CG34455 35 34
  • 55.94 (n)
CG4446 36
  • 47 (a)
African malaria mosquito
(Anopheles gambiae)
Insecta AgaP_AGAP005929 34
  • 55.37 (n)
(Caenorhabditis elegans)
Secernentea F57C9.1 34 35
  • 51.13 (n)
F57C9.1b 36
  • 40 (a)
F57C9.1a 36
  • 39 (a)
baker's yeast
(Saccharomyces cerevisiae)
Saccharomycetes BUD16 35 37
  • 34 (a)
BUD17 35
  • 32 (a)
thale cress
(Arabidopsis thaliana)
eudicotyledons SOS4 34
  • 51.9 (n)
(Oryza sativa)
Liliopsida Os12g0600400 34
  • 52.36 (n)
(Triticum aestivum)
Liliopsida Ta.27523 34
(Zea mays)
Liliopsida Zm.3752 34
sea squirt
(Ciona savignyi)
Ascidiacea CSA.8531 35
  • 59 (a)
sea squirt
(Ciona intestinalis)
Ascidiacea Cin.4083 34
Species where no ortholog for PDXK was found in the sources mined by GeneCards:
  • A. gosspyii yeast (Ashbya gossypii)
  • Actinobacteria (Mycobacterium tuberculosis)
  • African clawed frog (Xenopus laevis)
  • Alicante grape (Vitis vinifera)
  • alpha proteobacteria (Wolbachia pipientis)
  • amoeba (Dictyostelium discoideum)
  • Archea (Pyrococcus horikoshii)
  • barley (Hordeum vulgare)
  • beta proteobacteria (Neisseria meningitidis)
  • bread mold (Neurospora crassa)
  • Chromalveolata (Phytophthora infestans)
  • common water flea (Daphnia pulex)
  • E. coli (Escherichia coli)
  • filamentous fungi (Aspergillus nidulans)
  • Firmicute bacteria (Streptococcus pneumoniae)
  • fission yeast (Schizosaccharomyces pombe)
  • green algae (Chlamydomonas reinhardtii)
  • honey bee (Apis mellifera)
  • K. lactis yeast (Kluyveromyces lactis)
  • loblloly pine (Pinus taeda)
  • malaria parasite (Plasmodium falciparum)
  • medicago trunc (Medicago Truncatula)
  • moss (Physcomitrella patens)
  • orangutan (Pongo pygmaeus)
  • pig (Sus scrofa)
  • rice blast fungus (Magnaporthe grisea)
  • schistosome parasite (Schistosoma mansoni)
  • sea anemone (Nematostella vectensis)
  • sea urchin (Strongylocentrotus purpuratus)
  • sorghum (Sorghum bicolor)
  • soybean (Glycine max)
  • stem rust fungus (Puccinia graminis)
  • sugarcane (Saccharum officinarum)
  • tomato (Lycopersicon esculentum)
  • toxoplasmosis (Toxoplasma gondii)
  • Trichoplax (Trichoplax adhaerens)

Evolution for PDXK Gene

Gene Tree for PDXK (if available)
Gene Tree for PDXK (if available)

Paralogs for PDXK Gene

(2) SIMAP similar genes for PDXK Gene using alignment to 5 proteins: Pseudogenes for PDXK Gene

genes like me logo Genes that share paralogs with PDXK: view

No data available for Paralogs for PDXK Gene

Variants for PDXK Gene

Sequence variations from dbSNP and Humsavar for PDXK Gene

SNP ID Clin Chr 21 pos Sequence Context AA Info Type
rs1000000157 -- 43,741,982(+) CAGGC(C/T)GTGCC intron-variant
rs1000003194 -- 43,717,222(+) TGGGG(A/G)CTGGG upstream-variant-2KB
rs1000042038 -- 43,738,696(+) CTCCT(C/G)TCCGA intron-variant, utr-variant-3-prime
rs1000157986 -- 43,733,535(+) CCCTC(C/T)CCCTC intron-variant, upstream-variant-2KB
rs1000210594 -- 43,753,154(+) CACGT(A/G)GACAT intron-variant

Structural Variations from Database of Genomic Variants (DGV) for PDXK Gene

Variant ID Type Subtype PubMed ID
dgv7874n54 CNV gain 21841781
dgv7875n54 CNV loss 21841781
dgv7876n54 CNV loss 21841781
dgv7877n54 CNV loss 21841781
esv1717308 CNV insertion 17803354
esv25264 CNV loss 19812545
esv2664281 CNV deletion 23128226
esv33771 CNV gain 17666407
esv33817 CNV loss 17666407
esv3557791 CNV deletion 23714750
esv3647111 CNV loss 21293372
nsv1072187 CNV deletion 25765185
nsv1150161 CNV deletion 26484159
nsv459291 CNV loss 19166990
nsv470904 CNV loss 18288195
nsv509799 CNV insertion 20534489
nsv520305 CNV loss 19592680
nsv587703 CNV loss 21841781
nsv587704 CNV loss 21841781
nsv587711 CNV loss 21841781
nsv587712 CNV loss 21841781
nsv587716 CNV loss 21841781
nsv587717 CNV loss 21841781
nsv834107 CNV loss 17160897
nsv834108 CNV loss 17160897
nsv953642 CNV deletion 24416366

Variation tolerance for PDXK Gene

Residual Variation Intolerance Score: 45.4% of all genes are more intolerant (likely to be disease-causing)
Gene Damage Index Score: 1.50; 29.27% of all genes are more intolerant (likely to be disease-causing)

Relevant External Links for PDXK Gene

Human Gene Mutation Database (HGMD)
SNPedia medical, phenotypic, and genealogical associations of SNPs for

No data available for Polymorphic Variants from UniProtKB/Swiss-Prot for PDXK Gene

Disorders for PDXK Gene

MalaCards: The human disease database

(1) MalaCards diseases for PDXK Gene - From: DISEASES

Disorder Aliases PubMed IDs
bartter syndrome, type 3
  • bartter disease type 3
- elite association - COSMIC cancer census association via MalaCards
Search PDXK in MalaCards View complete list of genes associated with diseases

Relevant External Links for PDXK

Genetic Association Database (GAD)
Human Genome Epidemiology (HuGE) Navigator
Atlas of Genetics and Cytogenetics in Oncology and Haematology:
genes like me logo Genes that share disorders with PDXK: view

No data available for UniProtKB/Swiss-Prot and Genatlas for PDXK Gene

Publications for PDXK Gene

  1. Human pyridoxal kinase. cDNA cloning, expression, and modulation by ligands of the benzodiazepine receptor. (PMID: 9099727) Hanna M.C. … Kirkness E.F. (J. Biol. Chem. 1997) 2 3 4 22 64
  2. Single-cell expression profiling of dopaminergic neurons combined with association analysis identifies pyridoxal kinase as Parkinson's disease gene. (PMID: 20035503) Elstner M. … Turnbull D.M. (Ann. Neurol. 2009) 3 22 46 64
  3. Human pyridoxal kinase: overexpression and properties of the recombinant enzyme. (PMID: 10987144) Lee H.-S. … Kwon O.-S. (Mol. Cells 2000) 3 4 22 64
  4. The PDXK rs2010795 variant is not associated with Parkinson disease in Italy. (PMID: 20373357) Guella I. … Duga S. (Ann. Neurol. 2010) 3 46 64
  5. Identification of new putative susceptibility genes for several psychiatric disorders by association analysis of regulatory and non-synonymous SNPs of 306 genes involved in neurotransmission and neurodevelopment. (PMID: 19086053) GratacA^s M. … Carracedo A. (Am. J. Med. Genet. B Neuropsychiatr. Genet. 2009) 3 46 64

Products for PDXK Gene

  • Addgene plasmids for PDXK

Sources for PDXK Gene

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