| Fd | the amino-terminal portion of the heavy chain of an immunoglobulin molecule; ferredoxin |
|---|---|
| FSHB | follicle-stimulating hormone, beta chain |
| FTH | ferritin heavy chain; fracture threshold |
| FTL | ferritin light chain |
| HBB | hemoglobin beta-chain; hospital blood bank; hydroxybenzyl benzimidazole |
| lauric acid in-chain-hydroxylase | <enzyme> Specific for lauric acid; hydroxylates at c-8, c-9 or c-10 of chain Registry number: EC 1.14.14.- Synonym: (cytochrome p-450)-dependent laurate in-chain-hydroxylase (26 Jun 1999) |
|---|---|
| L chain | <immunology> Although light chains are found in many multimeric proteins, L chain usually refers to the light chains of immunoglobulins. These are of 22 kD and of one of two types, kappa or lambda. A single immunoglobulin has identical light chains (2 kappa or 2 lamda). Light chains have one variable and one constant region. There are isotype variants of both kappa and lamda. (25 Jun 1999) |
| L-chain disease | bence Jones myeloma |
| L-chain myeloma | bence Jones myeloma |
| light chain | <immunology, protein> The lighter of the two types of polypeptide chains that are found in immunoglobulin and antibody molecules. Also used as a non-specific term for the smaller subunits of several multimeric proteins such as immunoglobulin, myosin, dynein, clathrin. (14 Oct 1997) |
| light chain-related amyloidosis | A form of primary amyloidosis in which the fibrillar amyloid deposits are derived from the amino terminal variable region of the light chains of immunoglobulin; seen in B-lymphocyte and plasma-cells dyscrasias. (05 Mar 2000) |
| long chain | In bacteriology, a continuous line of more than eight cells. (05 Mar 2000) |
| long-chain 3-hydroxyacyl CoA dehydrogenase | <enzyme> Deficiency may cause some cases of hypoglycaemic 3-hydroxydicarboxylic aciduria Registry number: EC 1.1.1.211 Synonym: l-chad (26 Jun 1999) |
| long-chain-acyl-CoA dehydrogenase | <enzyme> Flavoprotein; forms with another flavoprotein plus EC 1.5.5.1 a system reducing ubiquinone and other acceptors Registry number: EC 1.3.99.- Synonym: lc-acyl-CoA dehydrogenase, long-chain-acyl-coenzyme a dehydrogenase, very-long-chain acyl-CoA dehydrogenase, vlcad (26 Jun 1999) |
| long-chain-alcohol dehydrogenase | <enzyme> Catalyses reversibly the oxidation of a long-chain alcohol in the presence of nad to a long-chain acid anion and NADH Registry number: EC 1.1.1.192 Synonym: fatty alcohol-nad+ oxidoreductase (26 Jun 1999) |
| long-chain-alcohol O-fatty-acyltransferase | <enzyme> Catalyses the final step in biosynthesizing storage liquid waxes from long chain fatty acyl CoA and fatty alcohols; forming predominantly c42 wax esters Registry number: EC 2.3.1.75 Synonym: acyl-coenzyme a-alcohol transacylase, aca transacylase, acyl-CoA-alcohol transacylase, wax-ester synthase (26 Jun 1999) |
| long-chain-fatty-acid-(acyl-carrier-protein) ligase | <enzyme> Fatty acid, acyl-carrier-protein-sh and ATP gives acyl-(acyl-carrier-protein), AMP and ppi Registry number: EC 6.2.1.20 Synonym: fatty acid-acyl carrier protein ligase (AMP), acyl-(acyl-carrier-protein)synthetase, aacp synthetase, fatty acyl-acyl carrier protein synthase, vibrio harveyi, acyl-(acyl-carrier-protein) synthetase, acyl-acp synthetase (26 Jun 1999) |
| long-chain-fatty-acid-CoA ligase | <enzyme> Fatty acid thiokinase (long-chain), a ligase forming acyl-CoA, AMP, and pyrophosphate from long-chain fatty acids, ATP, and coenzyme A. Activity is independent of phosphatidylcholine Registry number: EC 6.2.1.3 Synonym: acyl-activating enzyme, dodecanoyl-CoA synthetase, fatty acid thiokinase (long chain), acid-coenzyme a ligase, fatty acid-CoA ligase, acyl-CoA synthetase, acyl-CoA ligase, coash ligase, ciprofibroyl-CoA synthetase, pristanoyl-CoA synthetase, palmityl CoA synthetase, palmitoyl CoA synthetase, palmitoyl CoA ligase, fatty acyl-CoA synthetase, very long chain fatty acid acyl-CoA synthetase, vlcfa acyl-CoA synthetase, nafenopin-CoA ligase, palmitoyl-CoA synthase, faa2 gene product, faa2p protein, vlacs enzyme (26 Jun 1999) |
| long-chain-fatty-acyl-glutamate deacylase | <enzyme> Lca aminoacylase I almost specific to l-glutamate-containing lipoamino acids; lca aminoacylase II acts on fatty acyl amino acids with chain lengths between c11 and c16 Registry number: EC 3.5.1.55 Synonym: lca aminoacylase I, lca aminoacylase II, n-long chain acyl aminoacylase (26 Jun 1999) |
| LTDH short chain dehydrogenase | <enzyme> Has been sequenced; responsible for methotrexate resistance; isolated from leishmania sp. Registry number: EC 1.3.- Synonym: ltdh gene product, pteridine reductase 1, ptr1 gene product, hmtx(r) gene product (26 Jun 1999) |