Alpha-tocopherol transfer protein
Details
- Name
- Alpha-tocopherol transfer protein
- Synonyms
- Alpha-TTP
- TPP1
- Gene Name
- TTPA
- Organism
- Humans
- Amino acid sequence
>lcl|BSEQ0010447|Alpha-tocopherol transfer protein MAEARSQPSAGPQLNALPDHSPLLQPGLAALRRRAREAGVPLAPLPLTDSFLLRFLRARD FDLDLAWRLLKNYYKWRAECPEISADLHPRSIIGLLKAGYHGVLRSRDPTGSKVLIYRIA HWDPKVFTAYDVFRVSLITSELIVQEVETQRNGIKAIFDLEGWQFSHAFQITPSVAKKIA AVLTDSFPLKVRGIHLINEPVIFHAVFSMIKPFLTEKIKERIHMHGNNYKQSLLQHFPDI LPLEYGGEEFSMEDICQEWTNFIMKSEDYLSSISESIQ
- Number of residues
- 278
- Molecular Weight
- 31749.305
- Theoretical pI
- 7.78
- GO Classification
- Functionsphosphatidylinositol-3,4-bisphosphate binding / phosphatidylinositol-4,5-bisphosphate binding / transporter activity / vitamin E bindingProcessesembryonic placenta development / intermembrane transport / intracellular pH reduction / lipid metabolic process / negative regulation of cell death / negative regulation of establishment of blood-brain barrier / response to nutrient / response to pH / response to toxic substance / transport / vitamin E metabolic process / vitamin transportComponentscytosol / late endosome
- General Function
- Vitamin e binding
- Specific Function
- Binds alpha-tocopherol, enhances its transfer between separate membranes, and stimulates its release from liver cells (PubMed:7887897). Binds both phosphatidylinol 3,4-bisphosphate and phosphatidylinol 4,5-bisphosphate; the resulting conformation change is important for the release of the bound alpha-tocopherol (By similarity).
- Pfam Domain Function
- Transmembrane Regions
- Not Available
- Cellular Location
- Cytoplasm
- Gene sequence
>lcl|BSEQ0010448|Alpha-tocopherol transfer protein (TTPA) ATGGCAGAGGCGCGATCCCAGCCCTCGGCGGGGCCGCAGCTCAACGCGCTACCGGACCAC TCTCCGTTGCTGCAGCCGGGCCTGGCGGCGCTGCGGCGCCGGGCCCGGGAAGCTGGCGTC CCGCTCGCGCCGCTGCCGCTCACCGACTCCTTCCTGCTGCGGTTCCTGCGCGCCCGGGAT TTCGATCTGGACCTGGCCTGGCGGTTACTAAAAAACTATTATAAGTGGAGAGCAGAATGT CCAGAAATAAGTGCAGATCTACACCCTAGAAGTATTATTGGCCTCCTAAAGGCTGGCTAC CATGGAGTCCTGAGATCCAGGGATCCCACTGGCAGCAAAGTTCTTATTTACAGAATCGCA CACTGGGACCCCAAAGTTTTTACAGCTTATGACGTATTTCGAGTAAGTCTAATCACATCC GAGCTTATTGTACAGGAGGTAGAAACTCAGCGGAATGGAATCAAGGCTATCTTTGATCTG GAAGGTTGGCAGTTTTCTCATGCTTTTCAAATCACTCCATCCGTAGCCAAGAAGATTGCT GCTGTACTTACGGATTCATTTCCATTGAAAGTTCGTGGCATCCATTTGATAAATGAACCA GTAATTTTCCATGCTGTCTTTTCCATGATCAAACCATTCCTGACTGAAAAAATTAAGGAA CGGATTCACATGCATGGGAACAACTACAAACAAAGCTTGCTTCAGCATTTCCCAGACATT CTTCCTCTGGAATATGGTGGTGAAGAATTCTCCATGGAGGACATTTGTCAGGAATGGACA AATTTTATAATGAAGTCTGAAGATTATCTCAGCAGCATTTCTGAGAGCATTCAATGA
- Chromosome Location
- 8
- Locus
- 8q13.1-q13.3
- External Identifiers
Resource Link UniProtKB ID P49638 UniProtKB Entry Name TTPA_HUMAN GenBank Protein ID 699601 GenBank Gene ID D49488 GenAtlas ID TTPA HGNC ID HGNC:12404 - General References
- Arita M, Sato Y, Miyata A, Tanabe T, Takahashi E, Kayden HJ, Arai H, Inoue K: Human alpha-tocopherol transfer protein: cDNA cloning, expression and chromosomal localization. Biochem J. 1995 Mar 1;306 ( Pt 2):437-43. [Article]
- Hentati A, Deng HX, Hung WY, Nayer M, Ahmed MS, He X, Tim R, Stumpf DA, Siddique T, Ahmed: Human alpha-tocopherol transfer protein: gene structure and mutations in familial vitamin E deficiency. Ann Neurol. 1996 Mar;39(3):295-300. [Article]
- 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. [Article]
- Cavalier L, Ouahchi K, Kayden HJ, Di Donato S, Reutenauer L, Mandel JL, Koenig M: Ataxia with isolated vitamin E deficiency: heterogeneity of mutations and phenotypic variability in a large number of families. Am J Hum Genet. 1998 Feb;62(2):301-10. [Article]
- Ouahchi K, Arita M, Kayden H, Hentati F, Ben Hamida M, Sokol R, Arai H, Inoue K, Mandel JL, Koenig M: Ataxia with isolated vitamin E deficiency is caused by mutations in the alpha-tocopherol transfer protein. Nat Genet. 1995 Feb;9(2):141-5. [Article]
- Bian Y, Song C, Cheng K, Dong M, Wang F, Huang J, Sun D, Wang L, Ye M, Zou H: An enzyme assisted RP-RPLC approach for in-depth analysis of human liver phosphoproteome. J Proteomics. 2014 Jan 16;96:253-62. doi: 10.1016/j.jprot.2013.11.014. Epub 2013 Nov 22. [Article]
- Meier R, Tomizaki T, Schulze-Briese C, Baumann U, Stocker A: The molecular basis of vitamin E retention: structure of human alpha-tocopherol transfer protein. J Mol Biol. 2003 Aug 15;331(3):725-34. [Article]
- Min KC, Kovall RA, Hendrickson WA: Crystal structure of human alpha-tocopherol transfer protein bound to its ligand: implications for ataxia with vitamin E deficiency. Proc Natl Acad Sci U S A. 2003 Dec 9;100(25):14713-8. Epub 2003 Dec 1. [Article]
- Gotoda T, Arita M, Arai H, Inoue K, Yokota T, Fukuo Y, Yazaki Y, Yamada N: Adult-onset spinocerebellar dysfunction caused by a mutation in the gene for the alpha-tocopherol-transfer protein. N Engl J Med. 1995 Nov 16;333(20):1313-8. [Article]
- Morley S, Panagabko C, Shineman D, Mani B, Stocker A, Atkinson J, Manor D: Molecular determinants of heritable vitamin E deficiency. Biochemistry. 2004 Apr 13;43(14):4143-9. [Article]
- Mariotti C, Gellera C, Rimoldi M, Mineri R, Uziel G, Zorzi G, Pareyson D, Piccolo G, Gambi D, Piacentini S, Squitieri F, Capra R, Castellotti B, Di Donato S: Ataxia with isolated vitamin E deficiency: neurological phenotype, clinical follow-up and novel mutations in TTPA gene in Italian families. Neurol Sci. 2004 Jul;25(3):130-7. [Article]
Drug Relations
- Drug Relations
DrugBank ID Name Drug group Pharmacological action? Actions Details DB02080 1-{2-[2-(2-Methoxyethoxy)Ethoxy]Ethoxy}-4-(1,1,3,3-Tetramethylbutyl)Benzene experimental unknown Details DB00163 Vitamin E approved, nutraceutical, vet_approved unknown binder Details DB14001 alpha-Tocopherol succinate approved, nutraceutical, vet_approved unknown Details DB14002 D-alpha-Tocopherol acetate approved, nutraceutical, vet_approved unknown Details DB11251 Tocopherol approved, investigational no substrate Details DB14003 alpha-Tocopherol acetate approved no substrate Details DB11635 Tocofersolan approved no substrate Details