| delta mesoscapulae | The flat triangular surface at the vertebral extremity of the spine of the scapula over which glides the tendon for the lower fibres of the trapezius muscle. (05 Mar 2000) |
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| delta rhythm | Brain waves in the electroencephalogram which have a frequency below 3 1/2 per second. They are typical in deep sleep, in infancy, and in serious brain disorders. (12 Dec 1998) |
| delta sleep-inducing peptide | <chemical> A nonapeptide that is found in neurons, peripheral organs, and plasma. This neuropeptide induces mainly delta sleep in mammals. In addition to sleep, the peptide has been observed to affect electrophysiological activity, neurotransmitter levels in the brain, circadian and locomotor patterns, hormonal levels, psychological performance, and the activity of neuropharmacological drugs including their withdrawal. Chemical name: Delta sleep-inducing peptide (12 Dec 1998) |
| delta virus | <virology> Hepatitis D virus. A defective RNA virus requiring a helper virus, usually Hepatitis B virus, for replication. Delta virus infections may exacerbate the clinical effects of Hepatitis B. (18 Nov 1997) |
| delta wave | A premature upstroke of the QRS complex due to an atrial ventricular bypass tract as in WPW syndrome. Synonym: delta rhythm. (05 Mar 2000) |
| delta(1)-tetrahydrocannabinolic acid synthase | <enzyme> Catalyses the oxidocyclization of cannabigerolic acid without requiring molecular oxygen, coenzymes, or cofactors; n-terminal amino acid sequence given in first source Registry number: EC 5.3.- Synonym: delta(1)-thca synthase (26 Jun 1999) |
| 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)-3 beta-hydroxysteroid dehydrogenase | <enzyme> Converts dehydroepiandrosterone to delta-4-androstene-3,17-dione Registry number: EC 1.1.1.- Synonym: dbhdase, 3 beta-hydroxy-5-ene-steroid dehydrogenase, steroid-delta(5)-3-ol dehydrogenase (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) |
| delta-(alpha-aminoadipyl)cysteinylvalinedisulfide reductase | <enzyme> Broad range disulfide reductase from streptomyces clavuligerus; requires NADPH; involved in the production of beta-lactam antibiotic such as penicillins and cephalosporins Registry number: EC 1.6.4.- Synonym: bis-acv reductase, delta-(-l-alpha-aminoadipyl)-l-cysteinyl-d-valine disulfide reductase, acv disulfide reductase (26 Jun 1999) |
| delta-1-piperideine-6-carboxylate dehydrogenase | <enzyme> From streptomyces clavuligerus and other cephamycin c-producing actinomycetes; converts delta-1-piperideine-6-carboxylate to alpha-aminoadipic acid Registry number: EC 1.5.1.- Synonym: p6c dehydrogenase (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-15 desaturase | <enzyme> Catalyses desaturation of glycerolipid-linked linoleic acid at position 15; has been sequenced; genbank u17063 Registry number: EC 1.14.99.- Synonym: delta(5)-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) |
| delta-22 sterol desaturase | <enzyme> Catalyses the formation of the sterol side delta-22-double bond from 23-hydroxysterols Registry number: EC 1.3.3.- Synonym: c-22 sterol desaturase, cyp61, cytochrome p-45061, sterol delta22-desaturase (26 Jun 1999) |