TPK1

Thiamin pyrophosphokinase 1
Available structures PDB Ortholog search: PDBe, RCSB List of PDB id codes 1OLY​, 3S4Y​
Identifiers
Symbols	TPK1 ; HTPK1; PP20; THMD5
External IDs	OMIM: 606370 MGI: 1352500 HomoloGene: 6960 ChEMBL: 6155 GeneCards: TPK1 Gene
EC number	2.7.6.2
Gene ontology Molecular function • thiamine diphosphokinase activity • ATP binding • kinase activity • thiamine binding Cellular component • cytosol Biological process • vitamin metabolic process • water-soluble vitamin metabolic process • thiamine metabolic process • thiamine diphosphate biosynthetic process • phosphorylation • thiamine-containing compound metabolic process • small molecule metabolic process Sources: Amigo / QuickGO
RNA expression pattern
More reference expression data
Orthologs
Species	Human	Mouse
Entrez	27010	29807
Ensembl	ENSG00000196511	ENSMUSG00000029735
UniProt	Q9H3S4	Q9R0M5
RefSeq (mRNA)	NM_001042482	NM_013861
RefSeq (protein)	NP_001035947	NP_038889
Location (UCSC)	Chr 7: 144.45 – 144.84 Mb	Chr 6: 43.35 – 43.67 Mb
PubMed search

Thiamin pyrophosphokinase 1 is an enzyme that in humans is encoded by the TPK1 gene.^[1][2]

This gene encodes a protein, that exists as a homodimer, which catalyzes the conversion of thiamine to thiamine pyrophosphate. Alternate transcriptional splice variants, encoding different isoforms, have been characterized.^[2]

References

1. Nosaka K, Onozuka M, Kakazu N, Hibi S, Nishimura H, Nishino H, Abe T (May 2001). "Isolation and characterization of a human thiamine pyrophosphokinase cDNA". Biochim Biophys Acta 1517 (2): 293–7. doi:10.1016/s0167-4781(00)00247-5. PMID 11342111.
2. "Entrez Gene: TPK1 thiamin pyrophosphokinase 1".

Further reading

• Egi Y, Koyama S, Shioda T, et al. (1992). "Identification, purification and reconstitution of thiamin metabolizing enzymes in human red blood cells". Biochim. Biophys. Acta 1160 (2): 171–8. doi:10.1016/0167-4838(92)90004-W. PMID 1332781.
• Bohn H, Winckler W (1985). "Isolation and characterization of four new placental tissue proteins (PP18, PP19, PP20, PP21)". Arch. Gynecol. 236 (4): 235–42. doi:10.1007/BF02133941. PMID 3896163.
• Iwashima A, Kinugasa A, Nose Y (1983). "Radiometric assay for thiamine pyrophosphokinase activity in human leukocytes". Acta Vitaminol. Enzymol. 5 (1): 41–5. PMID 6303095.
• <Please add first missing authors to populate metadata.> (1999). "Toward a complete human genome sequence". Genome Res. 8 (11): 1097–108. doi:10.1101/gr.8.11.1097. PMID 9847074.
• Nosaka K, Onozuka M, Nishino H, et al. (1999). "Molecular cloning and expression of a mouse thiamin pyrophosphokinase cDNA". J. Biol. Chem. 274 (48): 34129–33. doi:10.1074/jbc.274.48.34129. PMID 10567383.
• Zhao R, Gao F, Goldman ID (2001). "Molecular cloning of human thiamin pyrophosphokinase". Biochim. Biophys. Acta 1517 (2): 320–2. doi:10.1016/s0167-4781(00)00264-5. PMID 11342117.
• 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. PMC 139241. PMID 12477932.
• Scherer SW, Cheung J, MacDonald JR, et al. (2003). "Human Chromosome 7: DNA Sequence and Biology". Science 300 (5620): 767–72. doi:10.1126/science.1083423. PMC 2882961. PMID 12690205.
• Onozuka M, Nosaka K (2004). "Steady-state kinetics and mutational studies of recombinant human thiamin pyrophosphokinase". J. Nutr. Sci. Vitaminol. 49 (3): 156–62. doi:10.3177/jnsv.49.156. PMID 12953792.
• 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.
• 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.
• Bellyei S, Szigeti A, Boronkai A, et al. (2005). "Cloning, sequencing, structural and molecular biological characterization of placental protein 20 (PP20)/human thiamin pyrophosphokinase (hTPK)". Placenta 26 (1): 34–46. doi:10.1016/j.placenta.2004.03.008. PMID 15664409.
• Toyoshima M, Oka A, Egi Y, et al. (2005). "Thiamine-responsive congenital lactic acidosis: clinical and biochemical studies". Pediatr. Neurol. 33 (2): 98–104. doi:10.1016/j.pediatrneurol.2005.02.007. PMID 16087053.
• Onozuka M, Konno H, Akaji K, et al. (2006). "Molecular cloning and analysis of the 5'-flanking region of the human thiamin pyrophosphokinase gene". J. Nutr. Sci. Vitaminol. 51 (4): 274–7. doi:10.3177/jnsv.51.274. PMID 16262001.
• 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.
• Fradin D, Bougneres P (2007). "Three common intronic variants in the maternal and fetal thiamine pyrophosphokinase gene (TPK1) are associated with birth weight". Ann. Hum. Genet. 71 (Pt 5): 578–85. doi:10.1111/j.1469-1809.2007.00348.x. PMID 17295612.