interferon inducible genes

This works specifically against viral infections. Cells invaded by a virus produce an antiviral protein called interferon, which is released from the infected and dying host cell. On reaching the nearby uninfected cell, it makes them resistant to the virus infection. Interferon ..

Inducer is a chemical (most often a substrate or any other metabolite) which inactivates the repressor of an operon. The inducer binds with the repressor, forming a repressor-inducer complex. This complex prevents the repressor from binding with the operator gene..

The operator gene controls the functioning of a specific series of structural genes. It lies adjacent to the structural genes which it controls. The cistrons are expressed when the operator gene is turned on by an inducer, and are not expressed whe..

The variations at the level of the gene which form the basis of the differences between related organism as well as the diversity among organisms is called gene mutation. Gene mutation is defined as a sudden discrete change in the genetic material of gene whi..

In eukaryotes, the genes that code for the enzymes needed to catalyse the various steps of a particular metabolic pathway may not be adjacent or even be in different chromosomes. However, these genes are regulated by operon model as in bacteria. Both the inducible..

In eukaryotes, the genes that code for the enzymes needed to catalyse the various steps of a particular metabolic pathway may not be adjacent or even be in different chromosomes. However, these genes are regulated by operon model as in bacteria. Both the inducible and ..

The concept that genes have the information to produce enzymes which are proteinaceous in nature was proved by George Beade and Edward Talium in the early 1940s with their work on the fungus Neurospora crassa. This mould can normally grow in a simple minimal medium containing salts and su..

Protein synthesis is a controlled process in which a given protein is synthesised in the cell only when it is necessary. When a particular protein is to be synthesised the specific gene has to express and initiate transcription. The mechanism that stimulates the expression of cert..

Mutations are defined as heritable changes in structure number of genes or chromosomes. Mutations can be natural (spontaneous) or induced. Many natural mutations are recorded. But, stability of mutant expression needs a thorough testing over generations, as many mutants have ten..

Genetically altered or modified microbial cells can be duplicated very easily and we can get millions of cloned cells in a few days. These microbial strains are used for a number of purposes. a. To produce useful compounds such as enzymes and vitamins on large scale. b. They can be engineered to pr..