Biology:PDXK

Short description: Protein-coding gene in the species Homo sapiens

Generic protein structure example

Pyridoxal kinase is an enzyme that in humans is encoded by the 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.

Further reading

• "Biochemical and electrophoretic studies of erythrocyte pyridoxine kinase in white and black Americans". Am. J. Hum. Genet. 28 (1): 9–17. 1976. 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. 
• "Oligo-capping: a simple method to replace the cap structure of eukaryotic mRNAs with oligoribonucleotides". Gene 138 (1–2): 171–4. 1994. 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. 
• "Mechanisms of the inhibition of human erythrocyte pyridoxal kinase by drugs". Biochem. Pharmacol. 54 (8): 863–70. 1997. 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. doi:10.1038/35012518. PMID 10830953. Bibcode: 2000Natur.405..311H. 
• "Human pyridoxal kinase: overexpression and properties of the recombinant enzyme". Mol. Cells 10 (4): 452–9. 2001. 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. doi:10.1073/pnas.242603899. PMID 12477932. Bibcode: 2002PNAS...9916899M. 
• 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. 
• "Expression of cystathionine beta-synthase, pyridoxal kinase, and ES1 protein homolog (mitochondrial precursor) in fetal Down syndrome brain". Neurochem. Int. 45 (1): 73–9. 2004. doi:10.1016/j.neuint.2003.12.004. PMID 15082224. 
• 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. 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. 
• 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. PMID 16344560. 
• "The genetic basis of human erythrocyte pyridoxal kinase activity variation". Haematologica 91 (6): 801–4. 2006. 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. 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. PMID 17766369.