| Galton's delta | A more or less well-marked triangle, in a fingerprint, on either side where the straight ridges near the joint of the distal phalanx are succeeded by arches, loops, or whorls. See: Galton's system of classification of fingerprints. Synonym: triradius. (05 Mar 2000) |
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| delta(3,5),delta(2,4)-dienoyl-CoA isomerase | <enzyme> Catalyses the isomerization of 3,5-octadienoyl-CoA to 2,4-octadienoyl-CoA Registry number: EC 5.3.3.- Synonym: ddd-CoA-isomerase, delta(3,5),t(2,4)-dienoyl-CoA isomerase (26 Jun 1999) |
| delta 5,7-sterol delta-7-reductase | <enzyme> Involved in cholesterol biosynthesis, introduces the delta-5 bond into delta 7-cholestenol to form 7-dehydrocholesterol Registry number: EC 1.3.1.- Synonym: delta 7-sterol reductase, delta 7-sterol desaturase, delta 7-sterol 5-desaturase (26 Jun 1999) |
| delta(8)-delta(7)-sterol isomerase | <enzyme> Catalyses anaerobic conversion of sterol-8-ene to sterol-7-ene; do not confuse with erg-2 protein from retroviridae Registry number: EC 5.3.3.- Synonym: delta 8 - delta 7 sterol isomerase, c-8 sterol isomerase, erg2 gene product, fungal, sterol 8-isomerase (26 Jun 1999) |
| Galton, Sir Francis | <person> English scientist, 1822-1911. See: Galton's delta, Galton's system of classification of fingerprints, Galton's law, Galton's whistle. (05 Mar 2000) |
| Galton's law | In a population mating at random, the progeny of a parent with an extreme value for a measurable phenotype will tend on average to have values nearer the population mean than in the extreme parent. See: law of regression to mean. Synonym: law of regression to mean. (05 Mar 2000) |
| Galton's system of classification of fingerprints | A system of classification based on the variations in the patterns of the ridges, which are grouped into arches, loops, and whorls (A.L.W. Or arch-loop-whorl system). "Arches are formed when the ridges run from one side to the other of the bulb of the digit, without making any backward turn, but no twist; whorls, when there is a turn through at least one complete circle; they are also considered to include all duplex spirals." The abbreviations used in making a record of fingerprint's are: a, arch; l, loop; w, whorl; i, loop with an inner (thumb side) slope; o, loop with an outer (little-finger side) slope. The ten digits are registered in four groups as follows, distinguished by capital letters: A, the fore, middle, and ring fingers of the right hand; B, the fore, middle, and ring fingers of the left hand; C, the thumb and little finger of the right hand; D, the thumb and little finger of the left hand. See: dermatoglyphics. (05 Mar 2000) |
| gene rearrangement, delta-chain T-cell antigen receptor | Ordered rearrangement of T-cell variable gene regions coding for the delta-chain of antigen receptors. (12 Dec 1998) |
| genes, T-cell receptor delta | DNA sequences encoding the delta chain of the T-cell receptor. The delta-chain locus is located entirely within the alpha-chain locus. (12 Dec 1998) |
| receptors, antigen, T-cell, gamma-delta | T-cell receptors composed of CD3-associated gamma and delta polypeptide chains and expressed primarily in CD4-/CD8- T-cells. The receptors appear to be preferentially located in epithelial sites and probably play a role in the recognition of bacterial antigens. The T-cell receptor gamma/delta chains are separate and not related to the gamma and delta chains which are subunits of CD3 (see antigens, CD3). (12 Dec 1998) |
| receptors, opioid, delta | A class of opioid receptors recognised by its pharmacological profile. Delta opioid receptors bind endorphins and enkephalins with approximately equal affinity and have less affinity for dynorphins. (12 Dec 1998) |
| CDP-6-deoxy-delta(3,4)-glucoseen reductase | <enzyme> Key enzyme catalyzing the biosynthetic formation of cdp-ascarylose via a pyridoxamine-linked intermediate; the enzyme can also oxidise NADPH in the presence of oxygen; from yerisinia pseudotuberculosis Registry number: EC 1.17.1.- Synonym: cddg reductase (26 Jun 1999) |
| muconolactone delta-isomerase | <enzyme> Catalyses the conversion of 4-hydroxy-4-carboxymethylisocrotonolactone to 3-oxoadipate enol-lactone; minor descriptor (75-83); on-line and index medicus search isomerases (75-83) Registry number: EC 5.3.3.4 (26 Jun 1999) |
| cortisol delta 4-reductase | <enzyme> Forms 5 alpha-dihydrocortisol& 5 beta-dihydrocortisol Registry number: EC 1.3.1.- Synonym: cortisol delta(4)-hydrogenase, cortisol delta(4)-5 beta-reductase (26 Jun 1999) |
| cucurbitacin delta 23-reductase | <enzyme> Catalyses the oxidation of 23,24-dihydrocucurbitacin to cucurbitacin in the presence of NADP+ Registry number: EC 1.3.1.5 (26 Jun 1999) |