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Pathway Description
Thiamine Metabolism
Mus musculus
Category:
Metabolite Pathway
Sub-Category:
Metabolic
Created: 2018-01-21
Last Updated: 2019-09-15
Thiamine, (Vitamin B1), is a compound found in many different foods such as beans, seafood, meats and yogurt. It is usually maintained by the consumption of whole grains. It is an essential part of energy metabolism. This means that thiamine helps convert carbohydrates into energy. Eating carbohydrates increases the need for this vitamin, as your body can only store about 30mg at a time due to the vitamins short half-life. Thiamine was first synthesized in 1936, which was very helpful in researching its properties in relation to beriberi, a vitamin b1 deficiency. This deficiency has been observed mainly in countries where rice is the staple food. Thiamine metabolism begins in the extracellular space, being transported by a thiamine transporter into the cell. Once in the intracellular space, thiamine is converted into thiamine pyrophosphate through the enzyme thiamin pyrophosphate kinase 1. Thiamine pyrophosphate is then converted into thiamine triphosphate, again using the enzyme thiamin pyrophosphatekinase 1. After this, thiamine triphosphate uses thiamine-triphosphatase to revert to thiamine pyrophosphate, which undergoes a reaction using cancer-related nuceloside-triphosphatase to become thiamine monophosphate. This phosphorylated form is a metabolically active form of thiamine, as are the two other compounds, derivatives of thiamine, mentioned previously. The enzymes used in this pathway both stem from the upper small intestine. Thiamine is passed mainly through urine. It is a water-soluble vitamin, which means it dissolves in water and is carried to different parts of the body but is not stored in the body.
References
Thiamine Metabolism References
Lehninger, A.L. Lehninger principles of biochemistry (4th ed.) (2005). New York: W.H Freeman.
Salway, J.G. Metabolism at a glance (3rd ed.) (2004). Alden, Mass.: Blackwell Pub.
Nosaka K, Onozuka M, Nishino H, Nishimura H, Kawasaki Y, Ueyama H: Molecular cloning and expression of a mouse thiamin pyrophosphokinase cDNA. J Biol Chem. 1999 Nov 26;274(48):34129-33. doi: 10.1074/jbc.274.48.34129.
Pubmed: 10567383
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Pubmed: 16141072
Gerhard DS, Wagner L, Feingold EA, Shenmen CM, Grouse LH, Schuler G, Klein SL, Old S, Rasooly R, Good P, Guyer M, Peck AM, Derge JG, Lipman D, Collins FS, Jang W, Sherry S, Feolo M, Misquitta L, Lee E, Rotmistrovsky K, Greenhut SF, Schaefer CF, Buetow K, Bonner TI, Haussler D, Kent J, Kiekhaus M, Furey T, Brent M, Prange C, Schreiber K, Shapiro N, Bhat NK, Hopkins RF, Hsie F, Driscoll T, Soares MB, Casavant TL, Scheetz TE, Brown-stein MJ, Usdin TB, Toshiyuki S, Carninci P, Piao Y, Dudekula DB, Ko MS, Kawakami K, Suzuki Y, Sugano S, Gruber CE, Smith MR, Simmons B, Moore T, Waterman R, Johnson SL, Ruan Y, Wei CL, Mathavan S, Gunaratne PH, Wu J, Garcia AM, Hulyk SW, Fuh E, Yuan Y, Sneed A, Kowis C, Hodgson A, Muzny DM, McPherson J, Gibbs RA, Fahey J, Helton E, Ketteman M, Madan A, Rodrigues S, Sanchez A, Whiting M, Madari A, Young AC, Wetherby KD, Granite SJ, Kwong PN, Brinkley CP, Pearson RL, Bouffard GG, Blakesly RW, Green ED, Dickson MC, Rodriguez AC, Grimwood J, Schmutz J, Myers RM, Butterfield YS, Griffith M, Griffith OL, Krzywinski MI, Liao N, Morin R, Palmquist D, Petrescu AS, Skalska U, Smailus DE, Stott JM, Schnerch A, Schein JE, Jones SJ, Holt RA, Baross A, Marra MA, Clifton S, Makowski KA, Bosak S, Malek J: The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC). Genome Res. 2004 Oct;14(10B):2121-7. doi: 10.1101/gr.2596504.
Pubmed: 15489334
Huttlin EL, Jedrychowski MP, Elias JE, Goswami T, Rad R, Beausoleil SA, Villen J, Haas W, Sowa ME, Gygi SP: A tissue-specific atlas of mouse protein phosphorylation and expression. Cell. 2010 Dec 23;143(7):1174-89. doi: 10.1016/j.cell.2010.12.001.
Pubmed: 21183079
Oishi K, Hirai T, Gelb BD, Diaz GA: Slc19a2: cloning and characterization of the murine thiamin transporter cDNA and genomic sequence, the orthologue of the human TRMA gene. Mol Genet Metab. 2001 Jun;73(2):149-59. doi: 10.1006/mgme.2001.3184.
Pubmed: 11386850
Fleming JC, Steinkamp MP, Kawatsuji R, Tartaglini E, Pinkus JL, Pinkus GS, Fleming MD, Neufeld EJ: Characterization of a murine high-affinity thiamine transporter, Slc19a2. Mol Genet Metab. 2001 Sep-Oct;74(1-2):273-80. doi: 10.1006/mgme.2001.3241.
Pubmed: 11592824
Lo PK, Wang FF: Identification of transcriptional start sites and splicing of mouse thiamine transporter gene THTR-1 (Slc19a2). Biochim Biophys Acta. 2002 Jun 7;1576(1-2):209-13. doi: 10.1016/s0167-4781(02)00305-6.
Pubmed: 12031504
This pathway was propagated using PathWhiz -
Pon, A. et al. Pathways with PathWhiz (2015) Nucleic Acids Res. 43(Web Server issue): W552–W559.
Propagated from SMP0000076
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