| FPI | femoral pulsatility index; fluid percussion injury; formula protein intolerance; Freiburg Personalit... |
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| GI | gastrointestinal; gelatin infusion [medium]; gingival index; globin insulin; glomerular index; gluco... |
| HFI | hereditary fructose intolerance; human fibroblast interferon |
| I&T | intolerance and toxicity |
| LPI | left posterior-inferior; lysinuric protein intolerance |
| lactose repressor | Protein (tetramer of 37 kD subunits) that normally binds with very high affinity to the operator region of the lactose operon and inhibits transcription of the downstream genes by blocking access of the polymerase to the promoter region. When the lactose repressor binds allolactose, its binding to the operator is reduced and the gene set is derepressed. (18 Nov 1997) |
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| lactose synthase | <enzyme> An enzyme of the transferase class that catalyses the transfer of galactose from udpgalactose to glucose, forming lactose. The enzyme is a complex of the enzyme n-acetyllactosamine synthase and alpha-lactalbumin; the latter protein is present in lactating mammary gland cells where it alters the usual specificity of the former to make lactose synthesis the preferred reaction. Chemical name: UDPgalactose:D-glucose 4-beta-D-galactosyltransferase Registry number: EC 2.4.1.22 (12 Dec 1998) |