| 영문 | organizer | 한글 | 형성체 |
|---|---|---|---|
| 설명 | 수정란의 발생초기에 외배엽에 작용하고 형태형성의 중심이 되는 부분. 척추동물의 초기 발생에서 원장배原腸胚가 함입된 동물극 쪽의 부분은 중배엽, 그것을 덮는 부분이 외배엽인데, 이 중배엽 부분이 배형성 중심으로 작용하는 배역胚域이다. 그 자체는 머리부 중배엽-척삭-원체절로 분화하며 외배엽에 작용하여 중추신경계를 형성하는 작용이 있다. 1924년 H.슈페만과 H.만골트는 도롱뇽의 초기원장배의 원구배순(장차 척색과 원체절이 되는 부분)을 잘라내어 다른 동기배同期胚의 배쪽에 이식하였다. 이식체는 정상발생과 마찬가지로 함입되어 원장을 만들고, 척삭과 원체절로 분화하였다. 이식체에 뒷받침된 숙주의 외배엽은 정상에서는 표피가 되어야 할 것이 신경판을 형성하여 중추신경계와 귀 등의 감각기관으로 분화하였다. 슈페만은 이 이식체를 형성체라 불렀다 이 발견으로 1936년에 노벨생리-의학상을 받았다. 형성체는 세포를 죽여도 유효하므로 화학물질이 유효할 것이라고 생각되어 연구되었으며, 일종의 핵단백질 또는 단백질일 것이라고 생각되고 있었으나, 근래의 연구는 세포 자체의 유전정보의 중요성이 강조되고 있다. |
||
| AgNOR | silver-staining nucleolar organizer region |
|---|---|
| NOR | noradrenaline; normal; nortriptyline; nucleolar organizer region |
| TBA | tertiary butylacetate; testosterone-binding affinity; tetrabutylammonium; thiobarbituric acid; to be... |
| TC | target cell; taurocholate; temperature compensation; teratocarcinoma; tertiary cleavage; tetracyclin... |
| ter | rub [Lat. tere]; terminal [end of chromosome]; terminal or end; ternary; tertiary; three times; thre... |
| K-T | Cretaceous-Tertiary |
|---|---|
| MTBE | Methyl tertiary butyl ether |
| TBA | Tertiary butyl alcohol |
| Ag-NOR | argyrophil nucleolar organizer region |
| AgNOR | Argyrophilic Nucleolar Organizer Region |
| protein structure, tertiary | The stage in the structural development of a protein in which combinations of alpha helices and beta sheets pack together to form compactly folded globular units named domains. Small proteins consist of only one domain but larger proteins contain a number of domains which are usually connected by open lengths of polypeptide chain. This stage is a combination of the second and third folding levels of protein building. (12 Dec 1998) |
|---|---|
| tertiary | 1. Being of the third formation, order, or rank; third; as, a tertiary use of a word. 2. <chemistry> Possessing some quality in the third degree; having been subjected to the substitution of three atoms or radicals; as, a tertiary alcohol, amine, or salt. Cf. Primary, and Secondary. 3. <geology> Later than, or subsequent to, the Secondary. 4. <zoology> Growing on the innermost joint of a bird's wing; tertial; said of quills. Tertiary age. <medicine> The third and last stage of syphilis, in which it invades the bones and internal organs. Origin: L. Tertiarius containing a third part, fr. Tertius third: cf. F. Tertiaire. See Tierce. 1. A member of the Third Order in any monastic system; as, the Franciscan tertiaries; the Dominican tertiaries; the Carmelite tertiaries. See Third Order, under Third. 2. <geology> The Tertiary era, period, or formation. 3. <zoology> One of the quill feathers which are borne upon the basal joint of the wing of a bird. Source: Websters Dictionary (01 Mar 1998) |
| tertiary alcohol | An alcohol characterised by the trivalent atom group (05 Mar 2000) |
| tertiary amine monooxygenase | <enzyme> Requires NADPH and fad; can be separated from dimethylamine mono-oxygenase; oxidises a variety of tertiary alkylamines up to tributylamine Registry number: EC 1.14.99.- Synonym: trimethylamine mono-oxygenase (26 Jun 1999) |
| tertiary amputation | An amputation formerly performed after infection had been controlled. (05 Mar 2000) |
| tertiary amyl alcohol | amylene hydrate |
| tertiary butyl alcohol | Trimethylcarbinol, 2-methyl-2-propanol, (CH3)3COH, a denaturant for ethanol. (05 Mar 2000) |
| tertiary calcium phosphate | Ca3(PO4)2;used as an antacid. Synonym: bone ash, bone phosphate, tertiary calcium phosphate, tricalcium phosphate, whitlockite. (05 Mar 2000) |
| tertiary cortex | <anatomy> Mid cortical region of lymph node, area that is particularly depleted of T lymphocytes in thymectomised animals and is referred to as the thymus dependent area. (18 Nov 1997) |
| tertiary dentin | Morphologically irregular dentin formed in response to an irritant. Synonym: irregular dentin, irritation dentin, reparative dentin. (05 Mar 2000) |
| tertiary egg membrane | See: egg membrane. (05 Mar 2000) |
| tertiary medical care | Specialised consultative care, usually on referral from primary or secondary medical care personnel, by specialists working in a centre that has personnel and facilities for special investigation and treatment. (05 Mar 2000) |
| tertiary oesophageal contractions | <radiology> Disordered up-and-down movement of bolus, 5-10% of normal adults in 4-6th decade, location: distal 2/3 of oesophagus aetiology: presbyesophagus, diffuse oesophageal spasm, hyperactive achalasia, neuromuscular disease: diabetes, Parkinsonism, ALS, MS, thyrotoxic myopathy, myotonic dystrophy, obstruction of cardia: neoplasm, distal oesophageal stricture, benign lesion, surgery (repair of HH) findings: spontaneous repetitive nonpropulsive contraction (yo-yo motion), corkscrew appearance, compartmentalization of barium (rosary bead, shish kebab) (12 Dec 1998) |
| tertiary structure | <biochemistry, chemistry> The third level of structural organisation in a macromolecule. The primary structure of a protein (for example) is the amino acid sequence, the secondary structure is the folding of the peptide chain (alpha helical or beta pleated), the tertiary structure is the way in which the helices or sheets are folded or arranged to give the three dimensional structure of the protein. Quaternary structure refers to the arrangement of protomers in a multimeric protein. (13 Jan 1998) |
| tertiary syphilid | A syphilitic skin lesion characteristic of the third stage of the disease. (05 Mar 2000) |
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
|---|
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
|---|