| branched-chain fatty acid synthetase | <enzyme> Analogous to fatty acid synthetase complex but starting with a branched chain keto acid; from bacillis subtilis Registry number: EC 2.3.1.- Synonym: bcfa synthetase (26 Jun 1999) |
|---|---|
| volatile fatty acid number | An index of the volatile acid content of a fat; the number of milliliters of 0.1 n KOH required to neutralise the soluble volatile fatty acids in 5 g of fat that has been saponified, acidified to liberate the fatty acids, and then steam-distilled. Synonym: volatile fatty acid number. (05 Mar 2000) |
| monounsaturated fatty acids | A fatty acid chain with at least two empty spaces that could be hydrogenated (have a hydrogen atom added). Saturated (hydrogenated) fatty acids are a greater health risk for the development of atherosclerotic vascular disease. (27 Sep 1997) |
| polyenoic fatty acid isomerase | <enzyme> Catalyses conversion of arachidonic acid and 5,8,11,14,17-eicosapentaenoic acid to 5,7,9,14-eicosatetraenoic acid and 5,7,9,14,17-eicosapentaenoic acid, respectively Registry number: EC 5.3.3.- Synonym: pfi enzyme (26 Jun 1999) |
| saturated fatty acid | A fatty acid, the carbon chain of which contains no ethylenic or other unsaturated linkages between carbon atoms (e.g., stearic acid and palmitic acid); called saturated because it is incapable of absorbing any more hydrogen. (05 Mar 2000) |
| saturated fatty acids | In eukaryotic membranes refers to stearic, palmitic and myristic acids, that are linear aliphatic chains with no double bonds. Prokaryotes have numerous branched chain saturated fatty acids. (18 Nov 1997) |
| xenobiotic medium chain fatty acid - coenzyme A ligase | <enzyme> Partial amino acid sequence of enzyme from bovine liver mitochondria given I first source; has high sequence homology to human and rat sa protein Registry number: EC 6.2.1.- Synonym: xl-i ligase, xl-i carboxylic acid - CoA ligase (26 Jun 1999) |
| delta-13 fatty acid desaturase | <enzyme> Involved in sex pheromone biosynthesis from palmitic acid in the moth thaumetopoea pityocampa, acts in conjunction with an 11-desaturase Registry number: EC 1.14.99.- Synonym: delta-13 desaturase (26 Jun 1999) |
| delta-22 fatty acid desaturase | <enzyme> Involved in ergosterol biosynthesis Registry number: EC 1.14.99.- Synonym: ergosta-5,7-dien-3 beta-ol delta-22 desaturase (26 Jun 1999) |
| diethenoid fatty acid | A fatty acid containing two double bonds, e.g., linoleic acid. (05 Mar 2000) |
| omega-3 fatty acid desaturase | <enzyme> Catalyses desaturation of the omega-3 carbon (3rd from free end) of c-18 fatty acids; deficiency results in accumulation of linoleic acid (18:2omega6,9) at the expense of linolenic acid (18:3omega3,6,9); amino acid sequence given in first source Registry number: EC 1.14.99.- Synonym: fad3 gene product, omega-3 desaturase (26 Jun 1999) |
| omega 3 fatty acids | A class of fatty acids that have a double bond three carbons from the methyl moiety; reportedly, they play a role in lowering cholesterol and LDL levels. Synonym: omega-3 fatty acids. (05 Mar 2000) |
| essential fatty acid | <biochemistry> The three fatty acids required for growth in mammals, arachidonic, linolenic and linoleic acids. Only linoleic acid needs to be supplied in the diet, the other two can be made from it. (18 Nov 1997) |
| unesterified free fatty acid | Free fatty acids which occur in plasma as a result of lipolysis in adipose tissue or when plasma triacylglycerols are taken into tissues. (05 Mar 2000) |
| fatty | Containing fat, or having the qualities of fat; greasy; gross; as, a fatty substance. <medicine> Fatty acid, a tumour consisting of fatty or adipose tissue; lipoma. Source: Websters Dictionary (01 Mar 1998) |