| annexal | Relating to the adnexa. Synonym: annexal. (05 Mar 2000) |
|---|---|
| annexectomy | 1. Excision of any adnexa. 2. In gynecology, excision of the fallopian tube and ovary if unilateral and excision of both tubes and ovaries (adnexa uteri) if bilateral. Synonym: annexectomy. (05 Mar 2000) |
| annexin | <protein> Group of calcium-binding proteins that interact with acidic membrane phospholipids in membranes. They contain 4 or 8 repeats of a 61 amino acid domain that folds into 5 a helices. Also known by several other names (e.g. Lipocortins, endonexins), reflecting the history of their discovery in different contexts. See: lipocortin, endonexin I & II, calpactin, p70 and calelectrin. (18 Nov 1997) |
| annexin I | Protein of the annexin family exhibiting lipid interaction and steroid-inducibility. (12 Dec 1998) |
| annexin II | Protein (p36) of the annexin family that is a substrate for a tyrosine kinase (oncogene protein pp60(v-src)) and for the cellular protein p11. (12 Dec 1998) |
| annexin III | <enzyme> A protein of the annexin family that catalyses the conversion of 1-d-inositol 1,2-cyclic phosphate and water to 1-d-myo-inositol 1-phosphate. Chemical name: 1-D-myo-Inositol-1,2-cyclic-phosphate 2-inositolphosphohydrolase Registry number: EC 3.1.4.36 (12 Dec 1998) |
| annexin IV | Protein of the annexin family originally isolated from the electric organ of the electric ray torpedo marmorata. It has also been found in a wide range of mammalian tissues. (12 Dec 1998) |
| annexin v | Protein of the annexin family isolated from human placenta and other tissues. Anticoagulant properties have been reported. (12 Dec 1998) |
| annexin vi | Protein of the annexin family with a probable role in exocytotic and endocytotic membrane events. (12 Dec 1998) |
| annexin vii | Protein of the annexin family that promotes the aggregation and fusion of chromaffin granules and can also act as a voltage-dependent calcium channel. (12 Dec 1998) |
| annexins | Family of calcium- and phospholipid-binding proteins which are structurally related and exhibit immunological cross-reactivity. Each member contains four homologous 70 kD repeats. The annexins are differentially distributed in vertebrate tissues (and lower eukaryotes) and appear to be involved in membrane fusion and signal transduction. (12 Dec 1998) |
| annexitis | <gynaecology> Inflammation of the adnexa uteri. (18 Nov 1997) |
| annexopexy | Operation for suspension of the fallopian tube and ovary; usually, oophoropexy is accomplished without suspension of the tube. Synonym: annexopexy. Origin: L. Annexa, adnexa, + G. Pexis, fixation (05 Mar 2000) |
| annihilate | 1. To reduce to nothing or nonexistence; to destroy the existence of; to cause to cease to be. "It impossible for any body to be utterly annihilated." (Bacon) 2. To destroy the form or peculiar distinctive properties of, so that the specific thing no longer exists; as, to annihilate a forest by cutting down the trees. "To annihilate the army." 3. To destroy or eradicate, as a property or attribute of a thing; to make of no effect; to destroy the force, etc, of; as, to annihilate an argument, law, rights, goodness. Origin: L. Annihilare; ad + nihilum, nihil, nothing, ne hilum (filum) not a thread, nothing at all. Cf. File, a row. Source: Websters Dictionary (01 Mar 1998) |
| annihilation radiation | The radiation resulting when a positron from beta positive decay comes to rest. It encounters an electron, and they annihilate each other and convert their rest mass into two 0.51-MeV gamma rays emitted in exactly opposite directions. (05 Mar 2000) |