| LAC | La Crosse [virus]; lactase; left atrial circumflex [artery]; left atrial contraction; linguoaxiocerv... |
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| LaC | labiocervical |
| lac | laceration; lactation |
| Lac | L(+)-lactate |
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| LAC | La Crosse |
| LacO | Lac operator |
| Lac | Lactose |
| LAC | Los Angeles County |
| Lac operon | Group of adjacent and coordinately controlled genes concerned with the metabolism of lactose in E. Coli. The lac operon was the first example of a group of genes under the control of an operator region to which a lactose repressor binds. When the bacteria are transferred to lactose containing medium, allolactose (which forms by transglycosylation when lactose is present in the cell) binds to the repressor, inhibits the binding of the repressor to the operator and allows transcription of mRNA for enzymes involved in galactose metabolism and transport across the membrane (_ galactosidase, galactoside permease and thiogalactoside transacetylase). (18 Nov 1997) |
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| seed-lac | A species of lac. See the Note under Lac. Source: Websters Dictionary (01 Mar 1998) |
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| lac | A resinous substance produced mainly on the banyan tree, but to some extent on other trees, by the Coccus lacca, a scale-shaped insect, the female of which fixes herself on the bark, and exudes from the margin of her body this resinous substance. Stick-lac is the substance in its natural state, incrusting small twigs. When broken off, and the colouring matter partly removed, the granular residuum is called seed-lac. When melted, and reduced to a thin crust, it is called shell-lac or shellac. Lac is an important ingredient in sealing wax, dyes, varnishes, and lacquers. Ceylon lac, a resinous exudation of the tree Croton lacciferum, resembling lac. Lac dye, a scarlet dye obtained from stick-lac. Lac lake, the colouring matter of lac dye when precipitated from its solutions by alum. Mexican lac, an exudation of the tree Croton Draco. Origin: Per. Lak; akin to Skr. Laksha: cf. F. Lague, It. & NL. Lacca. Cf. Lake a colour, Lacquer, Litmus. Source: Websters Dictionary (01 Mar 1998) |
| lac sulfuris | Sublimed sulfur boiled with lime water, the lime being removed from the precipitate by washing with diluted hydrochloric acid; used in preparing sulfur ointment and in the treatment of various skin disorders. Synonym: lac sulfuris, milk of sulfur. (05 Mar 2000) |
| lac vaccinum | Cow's milk. (05 Mar 2000) |
| ara operon | <biochemistry, molecular biology> Operons involved in arabinose metabolism, especially. The araBAD operon of E. Coli.Two other ara operons are known in E. Coli. (18 Nov 1997) |
| rrna operon | Genetic loci which direct transcription and translation of ribosomal RNA in bacterial operons. They are designated rrnb, rrnc, rrnd, etc. According to the structural position of the transcription unit in the DNA sequence. (12 Dec 1998) |
| his operon | <molecular biology> An operon which governs the synthesis of the amino acid histidine out of ATP and phosphoribosyl pyrophosphate. The his operon was first observed in and described for the bacteria Salmonella typhinurium. (09 Oct 1997) |
| operon | <molecular biology> Groups of bacterial genes with a common promotor, that are controlled as a unit and produce mRNA as a single piece, polycistronic messenger. An operon consists of two or more structural genes, which usually code for proteins with related metabolic functions and associated control elements that regulate the transcription of the structural genes. The first described example was the lac operon. (18 Nov 1997) |
| lactose operon | Group of adjacent and coordinately controlled genes concerned with the metabolism of lactose in E. Coli. The lac operon was the first example of a group of genes under the control of an operator region to which a lactose repressor binds. When the bacteria are transferred to lactose containing medium, allolactose (which forms by transglycosylation when lactose is present in the cell) binds to the repressor, inhibits the binding of the repressor to the operator and allows transcription of mRNA for enzymes involved in galactose metabolism and transport across the membrane (_ galactosidase, galactoside permease and thiogalactoside transacetylase). (18 Nov 1997) |
Synonyms : Gene, Lac, Gene, LacZ, Genes, Lac, Genes, LacZ, Lac Genes, Lac Operons, LacZ Gene, Lactose Operons, Operon, Lac, Operon, Lactose, Operons, Lac, Operons, Lactose
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
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제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
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