| KIU | kallikrein inactivation unit |
|---|---|
| TIP | thermal inactivation point; Toxicology Information Program; translation-inhibiting protein; tumor-in... |
| XIC | X-inactivation center |
| XIST | X-inactivation specific transcript |
| CALI | Chromophore assisted laser inactivation |
|---|---|
| KI | Inactivation |
| XCI | X chromosome inactivation |
| XCIP | X chromosome inactivation pattern |
| XIC | X inactivation center |
| insertional inactivation | The inactivation of a gene due to the insertion of exogenous genetic material into that gene. (14 Nov 1997) |
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| mutagenesis, insertional | Mutagenesis where the mutation is caused by the introduction of foreign DNA sequences into a gene. This may occur spontaneously in vivo or be experimentally induced in vivo or in vitro. Proviral DNA can be inserted into or adjacent to a cellular proto-oncogene. Insertion of the provirus can cause mutations by interrupting coding sequences or regulatory elements, or cause unregulated expression of the proto-oncogene resulting in tumour formation. (12 Dec 1998) |
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| insertional mutagenesis | Generally, mutagenesis of DNA by the insertion of one or more bases. Specific examples: 1. Oncogenesis by insertion of a retrovirus adjacent to a cellular proto-oncogene. 2. A strategy of mutagenesis with transposons. After a round of transposition, progeny are screened by PCR, with transposon and gene specific primers, for the proximity of the transposon sequence to the gene of interest. As PCR can only produce products up to 1-2 kb, a large fraction of progeny identified as positive by PCR will have a transposon close enough to the gene to inactivate or otherwise alter its pattern of expression. (18 Nov 1997) |
| radiation inactivation | The technique of inactivating proteins in freeze dried (lyophilised) preparations using high energy particles (e.g. Electrons). One high energy particle can apparently inactivate all of the components of a multisubunit polypeptide, the method is therefore used to determine the molecular weight of functional oligomers. (18 Nov 1997) |
| X inactivation | <cell biology> The inactivation of one or other of each pair of X chromosomes to form the Barr body in female mammalian somatic cells. Thus tissues whose original zygote carried heterozygous X borne genes should have individual cells expressing one or other but not both of the X borne gene products. The inactivation is thought to occur early in development and leads to mosaicism of expression of such genes in the body. See: Lyon hypothesis. (18 Nov 1997) |
| inactivation | <neurology, physiology> For example of voltage gated sodium channels: process by which sodium channels that have been activated or opened by depolarisation subsequently close during the depolarisation. Distinguished from activation by its slower kinetics. (18 Nov 1997) |
| enzyme inactivation | The disappearance of an enzyme's activity during in vitro conditions, such as during a lab preparation of the enzyme, where the enzyme is exposed to conditions not normally found within its environment inside a living cell (like different pH, excess or too little salt, temperature changes, etc.) (09 Oct 1997) |
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