| alternative oxidase | <enzyme> The terminal oxidase in alternative pathway respiration, as seen in plants like sauromatum guttatum (voodoo lily); amino acid sequence for tobacco alternative oxidase (aox1) in first source Registry number: EC 1.- Synonym: aox1 gene product, aox2 gene product, aox3 gene product (26 Jun 1999) |
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| alternative oxidase pathway | Pathway of mitochondrial electron transport in higher plants, particularly in fruits and seeds, that does not involve cytochrome oxidase and thus is resistant to cyanide. (18 Nov 1997) |
| alternative pathway | See: complement activation. (18 Nov 1997) |
| alternative splicing | A process whereby multiple protein isoforms are generated from a single gene. Alternative splicing involves the splicing together of nonconsecutive exons during the processing of some, but not all, transcripts of the gene. Thus a particular exon may be connected to any one of several alternative exons to form messenger RNA. The alternative forms produce proteins in which one part is common while the other part is different. (12 Dec 1998) |
| alternative therapy | A term given to nonconventional therapy usually given by persons who do not have a medical qualification. (16 Dec 1997) |
| alternative tremor | A coarse, low frequency (3-8 Hz) pathologic tremor produced by alternating contraction of muscles and their antagonists; seen with Parkinson disease and kinetic predominant action tremor. (05 Mar 2000) |
| alternator | Mechanical apparatus with movable transparent racks to which a large number of radiographs can be attached, to enable selection and viewing in front of a stationary bank of lights. Origin: L. Alterno, to do by turns, fr. Alter, either of two (05 Mar 2000) |
| alternocular | Denoting the use of each eye separately instead of binocularly. Origin: L. Alternus, by turns, + ocular (05 Mar 2000) |
| alteromonas | A Gram-negative bacteria that has curved rods and is motile by means of a single polar flagellum. It requires a seawater base for growth. (05 Mar 2000) |
| Alteromonas putrefaciens | A marine species implicated as a cause of fish spoilage but rarely as a human pathogen. (05 Mar 2000) |