Lecithin–cholesterol acyltransferase: Difference between revisions
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'''Lecithin–cholesterol acyltransferase''' ('''LCAT''', also called '''phosphatidylcholine–sterol O-acyltransferase''') is an [[enzyme]] that converts free [[cholesterol]] into [[cholesteryl ester]] (a more hydrophobic form of cholesterol), which is then sequestered into the core of a [[lipoprotein]] particle, eventually making the newly synthesized [[High-density lipoprotein|HDL]] spherical and forcing the reaction to become unidirectional since the particles are removed from the surface. The enzyme is bound to [[high-density lipoprotein]]s (HDLs) (alpha-LCAT) and LDLs (beta-LCAT) in the [[blood plasma]].<ref>{{Cite journal|date=2016-08-08|title=Lecithin-Cholesterol Acyltransferase Deficiency: Overview, Presentation, Differential Diagnosis|url=http://emedicine.medscape.com/article/122958-overview#a1}}</ref> [[Lecithin cholesterol acyltransferase deficiency|LCAT deficiency]] can cause impaired vision due to cholesterol corneal opacities, anemia, and kidney damage.<ref>{{Cite web|url=https://ghr.nlm.nih.gov/gene/LCAT|title=LCAT gene|last=Reference|first=Genetics Home|website=Genetics Home Reference|access-date=2016-12-11}}</ref> | '''Lecithin–cholesterol acyltransferase''' ('''LCAT''', also called '''phosphatidylcholine–sterol O-acyltransferase''') is an [[enzyme]] that converts free [[cholesterol]] into [[cholesteryl ester]] (a more hydrophobic form of cholesterol), which is then sequestered into the core of a [[lipoprotein]] particle, eventually making the newly synthesized [[High-density lipoprotein|HDL]] spherical and forcing the reaction to become unidirectional since the particles are removed from the surface. The enzyme is bound to [[high-density lipoprotein]]s (HDLs) (alpha-LCAT) and LDLs (beta-LCAT) in the [[blood plasma]].<ref>{{Cite journal|date=2016-08-08|title=Lecithin-Cholesterol Acyltransferase Deficiency: Overview, Presentation, Differential Diagnosis|url=http://emedicine.medscape.com/article/122958-overview#a1}}</ref> [[Lecithin cholesterol acyltransferase deficiency|LCAT deficiency]] can cause impaired vision due to cholesterol corneal opacities, anemia, and kidney damage.<ref>{{Cite web|url=https://ghr.nlm.nih.gov/gene/LCAT|title=LCAT gene|last=Reference|first=Genetics Home|website=Genetics Home Reference|access-date=2016-12-11}}</ref> It belongs to the family of [[Phospholipid:diacylglycerol acyltransferase|phospholipid:diacylglycerol acyltransferase]]s. | ||
==Interactive pathway map== | ==Interactive pathway map== | ||
Latest revision as of 09:11, 10 January 2019
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Lecithin–cholesterol acyltransferase (LCAT, also called phosphatidylcholine–sterol O-acyltransferase) is an enzyme that converts free cholesterol into cholesteryl ester (a more hydrophobic form of cholesterol), which is then sequestered into the core of a lipoprotein particle, eventually making the newly synthesized HDL spherical and forcing the reaction to become unidirectional since the particles are removed from the surface. The enzyme is bound to high-density lipoproteins (HDLs) (alpha-LCAT) and LDLs (beta-LCAT) in the blood plasma.[1] LCAT deficiency can cause impaired vision due to cholesterol corneal opacities, anemia, and kidney damage.[2] It belongs to the family of phospholipid:diacylglycerol acyltransferases.
Interactive pathway map
Click on genes, proteins and metabolites below to link to respective articles. [§ 1]
Statin Pathway edit
- ↑ The interactive pathway map can be edited at WikiPathways: "Statin_Pathway_WP430".
See also
References
- ↑ "Lecithin-Cholesterol Acyltransferase Deficiency: Overview, Presentation, Differential Diagnosis". 2016-08-08.
- ↑ Reference, Genetics Home. "LCAT gene". Genetics Home Reference. Retrieved 2016-12-11.
Further reading
- Dobiásová M, Frohlich J (1999). "Advances in understanding of the role of lecithin cholesterol acyltransferase (LCAT) in cholesterol transport". Clin Chim Acta. 286 (1–2): 257–71. doi:10.1016/S0009-8981(99)00106-0. PMID 10511297.
- Kuivenhoven JA, Pritchard H, Hill J, et al. (1997). "The molecular pathology of lecithin:cholesterol acyltransferase (LCAT) deficiency syndromes". J. Lipid Res. 38 (2): 191–205. PMID 9162740.
- de Vries R, Borggreve SE, Dullaart RP (2004). "Role of lipases, lecithin:cholesterol acyltransferase and cholesteryl ester transfer protein in abnormal high density lipoprotein metabolism in insulin resistance and type 2 diabetes mellitus". Clin. Lab. 49 (11–12): 601–13. PMID 14651331.
- Teisberg P, Gjone E, Olaisen B (1975). "Genetics of LCAT (lecithin: cholesterol acyltransferase) deficiency". Ann. Hum. Genet. 38 (3): 327–31. doi:10.1111/j.1469-1809.1975.tb00617.x. PMID 806250.
- Cogan DG, Kruth HS, Datilis MB, Martin N (1993). "Corneal opacity in LCAT disease". Cornea. 11 (6): 595–9. doi:10.1097/00003226-199211000-00021. PMID 1468226.
- Skretting G, Blomhoff JP, Solheim J, Prydz H (1992). "The genetic defect of the original Norwegian lecithin:cholesterol acyltransferase deficiency families". FEBS Lett. 309 (3): 307–10. doi:10.1016/0014-5793(92)80795-I. PMID 1516702.
- Skretting G, Prydz H (1992). "An amino acid exchange in exon I of the human lecithin: cholesterol acyltransferase (LCAT) gene is associated with fish eye disease". Biochem. Biophys. Res. Commun. 182 (2): 583–7. doi:10.1016/0006-291X(92)91772-I. PMID 1571050.
- Furukawa Y, Urano T, Hida Y, et al. (1992). "Interaction of rat lecithin-cholesterol acyltransferase with rat apolipoprotein A-I and with lecithin-cholesterol vesicles". J. Biochem. 111 (3): 413–8. PMID 1587806.
- Minnich A, Collet X, Roghani A, et al. (1992). "Site-directed mutagenesis and structure-function analysis of the human apolipoprotein A-I. Relation between lecithin-cholesterol acyltransferase activation and lipid binding". J. Biol. Chem. 267 (23): 16553–60. PMID 1644835.
- Bujo H, Kusunoki J, Ogasawara M, et al. (1992). "Molecular defect in familial lecithin:cholesterol acyltransferase (LCAT) deficiency: a single nucleotide insertion in LCAT gene causes a complete deficient type of the disease". Biochem. Biophys. Res. Commun. 181 (3): 933–40. doi:10.1016/0006-291X(91)92026-G. PMID 1662503.
- Gotoda T, Yamada N, Murase T, et al. (1991). "Differential phenotypic expression by three mutant alleles in familial lecithin:cholesterol acyltransferase deficiency". Lancet. 338 (8770): 778–81. doi:10.1016/0140-6736(91)90665-C. PMID 1681161.
- Klein HG, Lohse P, Pritchard PH, et al. (1992). "Two different allelic mutations in the lecithin-cholesterol acyltransferase gene associated with the fish eye syndrome. Lecithin-cholesterol acyltransferase (Thr123----Ile) and lecithin-cholesterol acyltransferase (Thr347----Met)". J. Clin. Invest. 89 (2): 499–506. doi:10.1172/JCI115612. PMC 442879. PMID 1737840.
- Maeda E, Naka Y, Matozaki T, et al. (1991). "Lecithin-cholesterol acyltransferase (LCAT) deficiency with a missense mutation in exon 6 of the LCAT gene". Biochem. Biophys. Res. Commun. 178 (2): 460–6. doi:10.1016/0006-291X(91)90129-U. PMID 1859405.
- Funke H, von Eckardstein A, Pritchard PH, et al. (1991). "A molecular defect causing fish eye disease: an amino acid exchange in lecithin-cholesterol acyltransferase (LCAT) leads to the selective loss of alpha-LCAT activity". Proc. Natl. Acad. Sci. U.S.A. 88 (11): 4855–9. doi:10.1073/pnas.88.11.4855. PMC 51765. PMID 2052566.
- Taramelli R, Pontoglio M, Candiani G, et al. (1990). "Lecithin cholesterol acyl transferase deficiency: molecular analysis of a mutated allele". Hum. Genet. 85 (2): 195–9. doi:10.1007/BF00193195. PMID 2370048.
- Rogne S, Skretting G, Larsen F, et al. (1987). "The isolation and characterisation of a cDNA clone for human lecithin:cholesterol acyl transferase and its use to analyse the genes in patients with LCAT deficiency and fish eye disease". Biochem. Biophys. Res. Commun. 148 (1): 161–9. doi:10.1016/0006-291X(87)91090-4. PMID 2823801.
- Tata F, Chaves ME, Markham AF, et al. (1987). "The isolation and characterisation of cDNA and genomic clones for human lecithin: cholesterol acyltransferase". Biochim. Biophys. Acta. 910 (2): 142–8. doi:10.1016/0167-4781(87)90066-2. PMID 2823898.
- Yang CY, Manoogian D, Pao Q, et al. (1987). "Lecithin:cholesterol acyltransferase. Functional regions and a structural model of the enzyme". J. Biol. Chem. 262 (7): 3086–91. PMID 2880847.
- McLean J, Fielding C, Drayna D, et al. (1986). "Cloning and expression of human lecithin-cholesterol acyltransferase cDNA". Proc. Natl. Acad. Sci. U.S.A. 83 (8): 2335–9. doi:10.1073/pnas.83.8.2335. PMC 323291. PMID 3458198.
- Azoulay M, Henry I, Tata F, et al. (1987). "The structural gene for lecithin:cholesterol acyl transferase (LCAT) maps to 16q22". Ann. Hum. Genet. 51 (Pt 2): 129–36. doi:10.1111/j.1469-1809.1987.tb01054.x. PMID 3674753.
- McLean J, Wion K, Drayna D, et al. (1987). "Human lecithin-cholesterol acyltransferase gene: complete gene sequence and sites of expression". Nucleic Acids Res. 14 (23): 9397–406. doi:10.1093/nar/14.23.9397. PMC 311966. PMID 3797244.
External links
- Lecithin+Cholesterol+Acyltransferase at the US National Library of Medicine Medical Subject Headings (MeSH)
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