| APAAP | alkaline phosphatase-antialkaline phosphatase [labeling] |
|---|---|
| LI | labeling index; lactose intolerance; lacunar infarct; lamellar ichthyosis; Langerhans islet; large i... |
| PCLI | plasma cell labeling index |
| TLI | thymidine labeling index; total lymphatic irradiation; trypsin-like immune activity; Tucker-Lewis in... |
| 32P | 2) photoaffinity labeling with |
|---|---|
| TUNEL | 5-triphosphate (dUTP)-biotin nick end-labeling |
| ASL | Arterial spin labeling |
| BrdUrd LI | bromodeoxyuridine labeling index |
| ISEL | In situ and labeling |
| photoaffinity labelling | <technique> A technique for covalently attaching a label or marker molecule onto another molecule such as a protein. The label, which is often fluorescent or radioactive, contains a group that becomes chemically reactive when illuminated usually with ultraviolet light) and will form a covalent linkage with an appropriate group on the molecule to be labelled: proximity is essential. The most important class of photoreactive groups used are the aryl azides, which form short lived but highly reactive nitrenes when illuminated. (31 Dec 1997) |
|---|---|
| photoaffinity labels | Biologically active molecules which are covalently bound to the enzymes or binding proteins normally acting on them. Binding occurs due to activation of the label by ultraviolet light. These labels are used primarily to identify binding sites on proteins. (12 Dec 1998) |
| affinity labeling | <technique> A method for tagging molecules, such as enzymes, so that they can be more easily detected and studied. The method works by substituting a synthetic substance which is similar to the substance that the enzyme normally bonds with. (09 Feb 1998) |
| chemiluminescent labeling | A technique of labeling DNA strands, two different DNA probes emit light when they come together in the same region of a gene. (09 Oct 1997) |
| product labeling | Use of written, printed, or graphic materials upon or accompanying a product or its container or wrapper. It includes purpose, effect, description, directions, hazards, warnings, and other relevant information. (12 Dec 1998) |
| isotope labeling | Techniques for labeling a substance with a stable or radioactive isotope. It is not used for articles involving labelled substances unless the methods of labeling are substantively discussed. Tracers that may be labelled include chemical substances, cells, or microorganisms. (12 Dec 1998) |
| food labeling | Use of written, printed, or graphic materials upon or accompanying a food or its container or wrapper. The concept includes ingredients, nutritional value, directions, warnings, and other relevant information. (12 Dec 1998) |
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