| Tn | normal intraocular tension; transposon |
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| CMM | cell-mediated mutagenesis; cutaneous malignant melanoma |
| MMM | see 3-M [syndrome]; microsome-mediated mutagenesis; myelofibrosis with myeloid metaplasia; myeloscle... |
| STM | Signature-tagged mutagenesis |
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| SDM | Site-directed mutagenesis |
| Tn5 | Transposon |
| Tn | transposon |
| transposon mutagenesis | <molecular biology> Insertion of a transposon into a gene, this inactivates the host gene leading to a mutant phenotype and also confers the phenotype associated with the transposon gene. (09 Oct 1997) |
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| composite transposon | <molecular biology> A segment of DNA which contains the insertion elements at either end but can contain just about anything in the middle (genes, markers, etc.). These types of transposons tend to be very large, and many of them came about when the inner two insertion elements of two smaller transposons stopped working and only the two at the far ends continue to work, so that when the transposon moves, it takes everything in between the two original transposons with it. Some composite transposons are used in genetics experiments, Tn5 and Tn10 are two such composite transposons which have genes that encode resistance to certain antibiotics. (05 Jan 1998) |
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| transposon | <molecular biology> Small, mobile DNA sequences that can replicate and insert copies at random sites within chromosomes. They have nearly identical sequences at each end, oppositely oriented (inverted) repeats and code for the enzyme, transposase, that catalyses their insertion. Bacteria have two types of transposon, simple transposons that have only the genes needed for insertion and complex transposons that contain genes in addition to those needed for insertion. Eukaryotes contain two classes of mobile genetic elements, the first are like bacterial transposons in that DNA sequences move directly. The second class (retrotransposons) move by producing RNA that is transcribed, by reverse transcriptase, into DNA which is then inserted at a new site. (13 Nov 1997) |
| cassette mutagenesis | The production of mutants within a region (often bounded by unique restriction sites) by the use of synthetic oligonucleotides that fill the gap with mutants designed into the synthetic genetic material. (05 Mar 2000) |
| mutagenesis | The development of mutations. (09 Oct 1997) |
| 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) |
| mutagenesis, site-directed | Mutagenesis where the mutation is caused by in vitro induction directed at a specific site in a DNA molecule. The most common method involves use of a chemically synthesised oligonucleotide mutant which can hybridise with the DNA target molecule. The resulting mismatch-carrying DNA duplex may then be transfected into a bacterial cell line and the mutant strands recovered. (12 Dec 1998) |
| site-directed mutagenesis | <molecular biology> Any of several methods used to create specific alterations in a gene. (09 Oct 1997) |
| site-specific mutagenesis | <cell culture, molecular biology> An in vitro technique in which an alteration is made at a specific site in a DNA molecule, which is then reintroduced into a cell. Various techniques are used, for the cell biologist, a very powerful approach to determining which parts of a protein or nucleotide sequence are critical to function. (18 Nov 1997) |
| 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) |
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
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제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
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