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PDXK

Available structures

Ortholog search: PDBe RCSB

List of PDB id codes
2AJP, 2F7K, 2YXT, 2YXU, 3FHX, 3FHY, 3KEU, 4EN4, 4EOH

Identifiers

Aliases

PDXK, C21orf124, C21orf97, HEL-S-1a, PKH, PNK, PRED79, pyridoxal (pyridoxine, vitamin B6) kinase, pyridoxal kinase, HMSN6C

External IDs

OMIM: 179020; MGI: 1351869; HomoloGene: 2731; GeneCards: PDXK; OMA:PDXK - orthologs

Gene location (Human)

Chr.	Chromosome 21 (human)^[1]

Band	21q22.3	Start	43,719,094 bp^[1]
Band	21q22.3	End	43,762,307 bp^[1]

Gene location (Mouse)

Chr.	Chromosome 10 (mouse)^[2]

Band	10 C1\|10 39.72 cM	Start	78,272,578 bp^[2]
Band	10 C1\|10 39.72 cM	End	78,300,809 bp^[2]

RNA expression pattern

Bgee

Human

Mouse (ortholog)

Top expressed in

sperm

renal medulla

anterior pituitary

Brodmann area 23

Brodmann area 46

nucleus accumbens

postcentral gyrus

Region I of hippocampus proper

minor salivary glands

inferior olivary nucleus

Top expressed in

entorhinal cortex

nucleus accumbens

motor neuron

superior colliculus

morula

conjunctival fornix

hypothalamus

submandibular gland

corneal stroma

supraoptic nucleus

More reference expression data

BioGPS


More reference expression data

Gene ontology
Molecular function	transferase activity nucleotide binding protein homodimerization activity pyridoxal kinase activity zinc ion binding potassium ion binding sodium ion binding metal ion binding kinase activity lithium ion binding pyridoxal phosphate binding ATP binding magnesium ion binding
Cellular component	cytosol extracellular exosome nucleus extracellular region cytoplasm secretory granule lumen specific granule lumen nucleoplasm
Biological process	pyridoxal phosphate biosynthetic process phosphorylation pyridoxal 5'-phosphate salvage cell population proliferation neutrophil degranulation vitamin B6 metabolic process
Sources:Amigo / QuickGO

Orthologs

Species

Human

Mouse

Entrez


8566


216134

Ensembl


ENSG00000160209


ENSMUSG00000032788

UniProt


O00764


Q8K183

RefSeq (mRNA)


NM_003681 NM_021941 NM_001331030


NM_172134

RefSeq (protein)


NP_001317959 NP_003672


NP_742146

Location (UCSC)

Chr 21: 43.72 – 43.76 Mb

Chr 10: 78.27 – 78.3 Mb

PubMed search

^[3]

^[4]

Wikidata

View/Edit Human

View/Edit Mouse

Pyridoxal kinase is an enzyme that in humans is encoded by the PDXK gene.^[5]^[6]

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.^[6]

References

^ ^a ^b ^c GRCh38: Ensembl release 89: ENSG00000160209 – Ensembl, May 2017
^ ^a ^b ^c GRCm38: Ensembl release 89: ENSMUSG00000032788 – Ensembl, May 2017
^ "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^ "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^ Hanna MC, Turner AJ, Kirkness EF (May 1997). "Human pyridoxal kinase. cDNA cloning, expression, and modulation by ligands of the benzodiazepine receptor". J Biol Chem. 272 (16): 10756–60. doi:10.1074/jbc.272.16.10756. PMID 9099727.
^ ^a ^b "Entrez Gene: PDXK pyridoxal (pyridoxine, vitamin B₆) kinase".

Chern CJ, Beutler E (1976). "Biochemical and electrophoretic studies of erythrocyte pyridoxine kinase in white and black Americans". Am. J. Hum. Genet. 28 (1): 9–17. PMC 1684914. PMID 2009.
Merrill AH, Henderson JM, Wang E, et al. (1984). "Metabolism of vitamin B-6 by human liver". J. Nutr. 114 (9): 1664–74. doi:10.1093/jn/114.9.1664. PMID 6088736.
Maruyama K, Sugano S (1994). "Oligo-capping: a simple method to replace the cap structure of eukaryotic mRNAs with oligoribonucleotides". Gene. 138 (1–2): 171–4. doi:10.1016/0378-1119(94)90802-8. PMID 8125298.
Zhang Z, Smith E, Surowiec SM, et al. (1993). "Synthesis of N-(4'-pyridoxyl)sphingosine and its uptake and metabolism by isolated cells". Membrane Biochemistry. 10 (1): 53–9. doi:10.3109/09687689309150252. PMID 8510562.
Lainé-Cessac P, Cailleux A, Allain P (1997). "Mechanisms of the inhibition of human erythrocyte pyridoxal kinase by drugs". Biochem. Pharmacol. 54 (8): 863–70. doi:10.1016/S0006-2952(97)00252-9. PMID 9354586.
Suzuki Y, Yoshitomo-Nakagawa K, Maruyama K, et al. (1997). "Construction and characterization of a full length-enriched and a 5'-end-enriched cDNA library". Gene. 200 (1–2): 149–56. doi:10.1016/S0378-1119(97)00411-3. PMID 9373149.
Hattori M, Fujiyama A, Taylor TD, et al. (2000). "The DNA sequence of human chromosome 21". Nature. 405 (6784): 311–9. Bibcode:2000Natur.405..311H. doi:10.1038/35012518. PMID 10830953.
Lee HS, Moon BJ, Choi SY, et al. (2001). "Human pyridoxal kinase: overexpression and properties of the recombinant enzyme". Mol. Cells. 10 (4): 452–9. doi:10.1016/S1016-8478(23)17501-7. PMID 10987144.
Strausberg RL, Feingold EA, Grouse LH, et al. (2003). "Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences". Proc. Natl. Acad. Sci. U.S.A. 99 (26): 16899–903. Bibcode:2002PNAS...9916899M. doi:10.1073/pnas.242603899. PMC 139241. PMID 12477932.
Ota T, Suzuki Y, Nishikawa T, et al. (2004). "Complete sequencing and characterization of 21,243 full-length human cDNAs". Nat. Genet. 36 (1): 40–5. doi:10.1038/ng1285. PMID 14702039.
Shin JH, Weitzdoerfer R, Fountoulakis M, et al. (2004). "Expression of cystathionine beta-synthase, pyridoxal kinase, and ES1 protein homolog (mitochondrial precursor) in fetal Down syndrome brain". Neurochem. Int. 45 (1): 73–9. doi:10.1016/j.neuint.2003.12.004. PMID 15082224. S2CID 20620865.
Fang X, Zhou ZM, Lu L, et al. (2004). "Expression of a novel pyridoxal kinase mRNA splice variant, PKH-T, in human testis". Asian J. Androl. 6 (2): 83–91. PMID 15154080.
Gerhard DS, Wagner L, Feingold EA, et al. (2004). "The Status, Quality, and Expansion of the NIH Full-Length cDNA Project: The Mammalian Gene Collection (MGC)". Genome Res. 14 (10B): 2121–7. doi:10.1101/gr.2596504. PMC 528928. PMID 15489334.
Wang L, Zhu YF, Guo XJ, et al. (2006). "A two-dimensional electrophoresis reference map of human ovary". J. Mol. Med. 83 (10): 812–21. doi:10.1007/s00109-005-0676-y. PMID 16021519. S2CID 6644433.
Kimura K, Wakamatsu A, Suzuki Y, et al. (2006). "Diversification of transcriptional modulation: Large-scale identification and characterization of putative alternative promoters of human genes". Genome Res. 16 (1): 55–65. doi:10.1101/gr.4039406. PMC 1356129. PMID 16344560.
Flanagan JM, Beutler E (2006). "The genetic basis of human erythrocyte pyridoxal kinase activity variation". Haematologica. 91 (6): 801–4. PMID 16704963.
Hu YH, Warnatz HJ, Vanhecke D, et al. (2006). "Cell array-based intracellular localization screening reveals novel functional features of human chromosome 21 proteins". BMC Genomics. 7: 155. doi:10.1186/1471-2164-7-155. PMC 1526728. PMID 16780588.
Musayev FN, di Salvo ML, Ko TP, et al. (2007). "Crystal Structure of human pyridoxal kinase: Structural basis of M+ and M2+ activation". Protein Sci. 16 (10): 2184–94. doi:10.1110/ps.073022107. PMC 2204131. PMID 17766369.

v t e PDB gallery
2ajp: Crystal structure of a human pyridoxal kinase 2f7k: Crystal Structure of Human Pyridoxal Kinase

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This page was last edited on 15 April 2024, at 05:00

PDXK

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References

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