serine palmitoyltransferase long chain base subunit 1
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A SPTLC1 gene provides instructions for making one part (subunit) of an enzyme called serine palmitoyltransferase (SPT). The SPT enzyme is involved in making certain fats called sphingolipids. Sphingolipids are important components of cell membranes that play a role in many cell functions. The SPT enzyme initiates the first step of sphingolipid production, in which the molecules serine and palmitoyl CoA combine to form a molecule called ketodihydrosphingosine. Additional chemical reactions convert ketodihydrosphingosine into various types of sphingolipids. Within the cell, the SPT enzyme is mainly found on the endoplasmic reticulum, which is a structure involved in protein processing and transport.
Normal function
A SPTLC1 gene provides instructions for making one part (subunit) of an enzyme called serine palmitoyltransferase (SPT). The SPT enzyme is involved in making certain fats called sphingolipids. Sphingolipids are important components of cell membranes that play a role in many cell functions. The SPT enzyme initiates the first step of sphingolipid production, in which the molecules serine and palmitoyl CoA combine to form a molecule called ketodihydrosphingosine. Additional chemical reactions convert ketodihydrosphingosine into various types of sphingolipids. Within the cell, the SPT enzyme is mainly found on the endoplasmic reticulum, which is a structure involved in protein processing and transport.
Conditions referring to this gene or chromosome
Other names
hLCB1
LBC1
LCB1
long chain base biosynthesis protein 1
serine C-palmitoyltransferase
serine palmitoyltransferase subunit 1
serine palmitoyltransferase, long chain base subunit 1
serine-palmitoyl-CoA transferase 1
SPT1
SPTC1_HUMAN
SPTI
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Leitura adicional e referências
- serine palmitoyltransferase long chain base subunit 1; MedlinePlus, National Library of Medicine.
- Auer-Grumbach M, Bode H, Pieber TR, Schabhuttl M, Fischer D, Seidl R, Graf E, Wieland T, Schuh R, Vacariu G, Grill F, Timmerman V, Strom TM, Hornemann T. Mutations at Ser331 in the HSN type I gene SPTLC1 are associated with a distinct syndromic phenotype. Eur J Med Genet. 2013 May;56(5):266-9. doi: 10.1016/j.ejmg.2013.02.002. Epub 2013 Feb 27.
- Bejaoui K, Wu C, Scheffler MD, Haan G, Ashby P, Wu L, de Jong P, Brown RH Jr. SPTLC1 is mutated in hereditary sensory neuropathy, type 1. Nat Genet. 2001 Mar;27(3):261-2. doi: 10.1038/85817.
- Dawkins JL, Hulme DJ, Brahmbhatt SB, Auer-Grumbach M, Nicholson GA. Mutations in SPTLC1, encoding serine palmitoyltransferase, long chain base subunit-1, cause hereditary sensory neuropathy type I. Nat Genet. 2001 Mar;27(3):309-12. doi: 10.1038/85879.
- Hornemann T, Richard S, Rutti MF, Wei Y, von Eckardstein A. Cloning and initial characterization of a new subunit for mammalian serine-palmitoyltransferase. J Biol Chem. 2006 Dec 8;281(49):37275-81. doi: 10.1074/jbc.M608066200. Epub 2006 Oct 4.
- Houlden H, King R, Blake J, Groves M, Love S, Woodward C, Hammans S, Nicoll J, Lennox G, O'Donovan DG, Gabriel C, Thomas PK, Reilly MM. Clinical, pathological and genetic characterization of hereditary sensory and autonomic neuropathy type 1 (HSAN I). Brain. 2006 Feb;129(Pt 2):411-25. doi: 10.1093/brain/awh712. Epub 2005 Dec 19.
- Penno A, Reilly MM, Houlden H, Laura M, Rentsch K, Niederkofler V, Stoeckli ET, Nicholson G, Eichler F, Brown RH Jr, von Eckardstein A, Hornemann T. Hereditary sensory neuropathy type 1 is caused by the accumulation of two neurotoxic sphingolipids. J Biol Chem. 2010 Apr 9;285(15):11178-87. doi: 10.1074/jbc.M109.092973. Epub 2010 Jan 22.
- Rotthier A, Penno A, Rautenstrauss B, Auer-Grumbach M, Stettner GM, Asselbergh B, Van Hoof K, Sticht H, Levy N, Timmerman V, Hornemann T, Janssens K. Characterization of two mutations in the SPTLC1 subunit of serine palmitoyltransferase associated with hereditary sensory and autonomic neuropathy type I. Hum Mutat. 2011 Jun;32(6):E2211-25. doi: 10.1002/humu.21481. Epub 2011 Feb 24.
- Wei J, Yerokun T, Leipelt M, Haynes CA, Radhakrishna H, Momin A, Kelly S, Park H, Wang E, Carton JM, Uhlinger DJ, Merrill AH Jr. Serine palmitoyltransferase subunit 1 is present in the endoplasmic reticulum, nucleus and focal adhesions, and functions in cell morphology. Biochim Biophys Acta. 2009 Aug;1791(8):746-56. doi: 10.1016/j.bbalip.2009.03.016. Epub 2009 Apr 9.
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