| 영문 | genetic engineering | 한글 | 유전공학 |
|---|---|---|---|
| 설명 | 1. 유전자의 합성이나 변형 따위를 연구하는 학문. 응용 유전학의 한 분야로, 병의 치료나 이로운 산물의 대량 생산을 목적으로 한다. 2. 생물의 유전자를 인공적으로 가공하여 인간에게 필요한 물질을 대량으로 값싸게 얻는 기술. 1970년대에 들어서면서 경이적인 과학기술의 하나로 큰 주목을 끌고 있으며, 이 분야에는 재조합 DNA기술-세포융합기술 및 핵치환기술 등이 있다. 재조합 DNA 기술에 의하여 인공적으로 재조합유전자를 만든 최초의 보고는 1972년 잭슨 등이 하였고, 인공적 재조합유전자를 숙주세포에서 형질을 발현시키는 데 최초로 성공한 것은 1973년 F. J. 코벤 등이다. 이 재조합 DNA 기술은 세균파지, 플라스미드에 관한 연구와 DNA에 작용하는 효소들, 특히 제한효소와 DNA 연결효소에 관한 연구에 의존하였다. 유전공학의 발전은 우리 세계를 바꿀 수 있을 것으로 내다보고 있다. 암을 제압하고 노화를 방지할 수 있어 유전공학은 결국 오늘의 인간이 안고 있는 에너지-식량-의료 등의 문제를 해결해 줄 수 있는 가능성을 지닌다. 이 때문에 유전공학은 ‘제3의 산업혁명’이라고 할 수 있고, 따라서 그 개발을 위하여 온 세계의 기업들이 이의 연구개발에 착수하고 국가들도 전략기술로 다루어 집접 육성에 박차를 가하고 있다. 우리나라에서도 1982년부터 유전공학 분야를 국가가 육성해야 할 특정연구 분야로 지정하고 있다. |
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| 영문 | genetic code | 한글 | 유전부호 |
|---|---|---|---|
| 설명 | 길게 늘어서 있는 DNA사슬의 유전정보가 각각의 아미노산에 대응하여 단백질의 합성에 사용될 수 있게 읽혀지는 방법. DNA 분자는 각각의 Deoxyribonucleotide가 연결되어서 이루는 구조이다. 이Deoxyribonucleolide는 당, 인산, 그리고 염기로 이루어져 있다. 당과 인산은 각각의 Deoxyribonucleotide가 연결되게 유지해주는 역할을 하고 염기가 유전정보를 가지고 있으며 이 염기의 배열이 유전정보 즉 단백질의 합성에 필요한 정보를 가지고 있다. DNA를 이루는 염기는 4개로 아데닌(adenine), 구아닌(guanine), 티민(thymine), 시토신(cytosine)의 4가지이다. 4개의 염기가 섞여있는 배열을 한 개의 단백질로 합성을 하기 위해서는 이 배열을 해독하는 방법이 있어야 한다. 즉 그 방법은 3개의 염기의 배열을 하나의 아미노산에 대응시켜서 각 아미노산의 서열을 정하고 단백질을 만드는 것이다. 예를 들면 cytosine-cytosine-cytosine이라는 배열은 proline이라는 단백질을 의미하는 것으로 읽혀지게 된다. 이렇게 아무런 규칙이 없는 것 같은 염기서열을 하나의 아미노산과 대응시켜서 읽는 방법이 유전부호이다. |
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| RFLPs | Restriction Fragment Length Polymorphisms; 제한효소단편장다형 |
|---|---|
| FR | failure rate; film-screen radiograph; fasciculus retroflexus; febrile reaction; feedback regulation;... |
| RE | radium emanation; readmission; rectal examination; reference emitter; reflux esophagitis; regional e... |
| RELP | restriction fragment length polymorphism |
| RELV | restriction fragment length variant |
| GAERS | Genetic Absence Epilepsy Rat from Strasbourg |
|---|---|
| GA | Genetic Algorithm |
| GH | Genetic Hemochromatosis |
| GSE | genetic suppressor element |
| PGD | Pre-implantation Genetic Diagnosis |
| cell cycle restriction point | <cell biology, molecular biology> A point, late in G1, after which the cell must, normally, proceed through to division at its standard rate. (26 Mar 1998) |
|---|---|
| restriction | 1. The process with which foreign DNA that has been introduced into a prokaryotic cell becomes ineffective. 2. A limitation. (05 Mar 2000) |
| restriction endonuclease | <enzyme, molecular biology> Class of bacterial enzymes that cut DNA at specific sites. In bacteria their function is to destroy foreign DNA, such as that of bacteriophages (host DNA is specifically modified at these sites). Type I restriction endonucleases occur as a complex with the methylase and a polypeptide that binds to the recognition site on DNA. They are often not very specific and cut at a remote site. Type II restriction endonucleases are the classic experimental tools. They have very specific recognition and cutting sites. The recognition sites are short, 4-8 nucleotides and are usually palindromic sequences. Because both strands have the same sequence running in opposite directions the enzymes make double stranded breaks, which, if the site of cleavage is off centre, generates fragments with short single stranded tails, these can hybridise to the tails of other fragments and are called sticky ends. They are generally named according to the bacterium from which they were isolated (first letter of genus name and the first two letters of the specific name). The bacterial strain is identified next and multiple enzymes are given Roman numerals. For example the two enzymes isolated from the R strain of E. Coli are designated Eco RI and Eco RII. (10 Mar 1998) |
| restriction enzyme | <enzyme, molecular biology> Class of bacterial enzymes that cut DNA at specific sites. In bacteria their function is to destroy foreign DNA, such as that of bacteriophages (host DNA is specifically modified at these sites). Type I restriction endonucleases occur as a complex with the methylase and a polypeptide that binds to the recognition site on DNA. They are often not very specific and cut at a remote site. Type II restriction endonucleases are the classic experimental tools. They have very specific recognition and cutting sites. The recognition sites are short, 4-8 nucleotides and are usually palindromic sequences. Because both strands have the same sequence running in opposite directions the enzymes make double stranded breaks, which, if the site of cleavage is off centre, generates fragments with short single stranded tails, these can hybridise to the tails of other fragments and are called sticky ends. They are generally named according to the bacterium from which they were isolated (first letter of genus name and the first two letters of the specific name). The bacterial strain is identified next and multiple enzymes are given Roman numerals. For example the two enzymes isolated from the R strain of E. Coli are designated Eco RI and Eco RII. (10 Mar 1998) |
| restriction enzyme cutting site | <molecular biology> A specific nucleotide sequence of DNA at which a particular restriction enzyme cuts the DNA. Some sites occur frequently in DNA (for example, every several hundred basepairs), others much less frequently (rare-cutter, for example, every 10,000 base pairs). (10 Mar 1998) |
| restriction enzyme, endonuclease | A protein that recognises specific, short nucleotide sequences and cuts DNA at those sites. Bacteria contain over 400 such enzymes that recognise and cut over 100 different DNA sequences. See restriction enzyme cutting site. (05 Mar 2000) |
| restriction fragment | <molecular biology> The fragments of DNA generated by digesting DNA with a specific restriction endonuclease. Each of the fragments ends in a site recognised by that specific enzyme. (10 Mar 1998) |
| restriction fragment length polymorphism | <molecular biology, technique> A method that allows familial relationships to be established by comparing the characteristic polymorphic patterns that are obtained when certain regions of genomic DNA are amplified (typically by PCR) and cut with certain restriction enzymes. The variation in the length of DNA fragments produced by a restriction endonuclease that cuts at a polymorphic locus. Such variations are generated by mutations that create or abolish recognition sites for these enzymes. This is a key tool in DNA fingerprinting, reflecting the existence of different alleles in the individual. Restriction fragment length polymorphism mapping is also used in plant breeding to see if a key trait such as disease resistance is inherited. In principle, an individual can be identified unambiquously by restriction fragment length polymorphism hence the use of restriction fragment length polymorphism in forensic analysis of blood, hair or semen). Similarly, if a polymorphism can be identified close to the locus of a genetic defect, it provides a valuable marker for tracing the inheritance of the defect. Synonym: DNA fingerprinting. Acronym: RFLP (12 Jan 1998) |
| restriction length polymorphism | Fragment length polymorphism, the existence of allelic forms recognizable by the length of fragments that result when the nucleotide chain is treated by a specific restriction enzyme that cleaves wherever a particular sequence of nucleotides occurs. A mutation in this sequence changes cleaving and hence the number of fragments. (05 Mar 2000) |
| restriction map | <molecular biology> Map of DNA showing the position of sites recognised and cut by various restriction endonucleases. (12 Jan 1998) |
| restriction mapping | Use of restriction endonucleases to analyze and generate a physical map of genomes or genes. The nucleotide sequence determined is often then translated into an amino acid sequence, providing a means for sequencing the protein for which the gene codes, or for which the mRNA is a messenger. (12 Dec 1998) |
| restriction methylation | The enzymatic addition of methyl groups to selected adenine and cytosine residues to protect from hydrolysis by certain restriction enzymes. (05 Mar 2000) |
| restriction nuclease | <enzyme, molecular biology> Class of bacterial enzymes that cut DNA at specific sites. In bacteria their function is to destroy foreign DNA, such as that of bacteriophages (host DNA is specifically modified at these sites). Type I restriction endonucleases occur as a complex with the methylase and a polypeptide that binds to the recognition site on DNA. They are often not very specific and cut at a remote site. Type II restriction endonucleases are the classic experimental tools. They have very specific recognition and cutting sites. The recognition sites are short, 4-8 nucleotides and are usually palindromic sequences. Because both strands have the same sequence running in opposite directions the enzymes make double stranded breaks, which, if the site of cleavage is off centre, generates fragments with short single stranded tails, these can hybridise to the tails of other fragments and are called sticky ends. They are generally named according to the bacterium from which they were isolated (first letter of genus name and the first two letters of the specific name). The bacterial strain is identified next and multiple enzymes are given Roman numerals. For example the two enzymes isolated from the R strain of E. Coli are designated Eco RI and Eco RII. (10 Mar 1998) |
| restriction site | A sequence in DNA that can be recognised and cut by a specific restriction enzyme. (12 Dec 1998) |
| restriction-site polymorphism | DNA polymorphism in which the sequence of one form of the polymorphism contains a recognition site for a particular endonuclease, but the sequence of the other form lacks such a site. (05 Mar 2000) |
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
|---|
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
|---|