Repressor: meaning, definitions and examples
๐
repressor
[ rษชหprษsษr ]
genetics
A repressor is a DNA- or RNA-binding protein that inhibits the expression of one or more genes by binding to the operator or associated silencer region.
Synonyms
blocker, inhibitor, suppressor
Examples of usage
- The lac repressor binds to the operator in the absence of lactose.
- When the repressor is bound to the operator, RNA polymerase is blocked from transcribing the genes.
- The trp repressor prevents the transcription of the tryptophan biosynthesis genes.
- The binding of the repressor to the operator is sensitive to the concentration of the specific metabolite.
- In the presence of the inducer, the repressor undergoes a conformational change and releases the operator.
Translations
Translations of the word "repressor" in other languages:
๐ต๐น represor
๐ฎ๐ณ เคฆเคฌเคพเคจเฅ เคตเคพเคฒเคพ
๐ฉ๐ช Unterdrรผcker
๐ฎ๐ฉ penindas
๐บ๐ฆ ัะตะฟัะตัะพั
๐ต๐ฑ represor
๐ฏ๐ต ๆๅง่
๐ซ๐ท rรฉpresseur
๐ช๐ธ represor
๐น๐ท bastฤฑrฤฑcฤฑ
๐ฐ๐ท ์ต์ ์
๐ธ๐ฆ ูู ุนู
๐จ๐ฟ represor
๐ธ๐ฐ represor
๐จ๐ณ ๆๅถๅ ๅญ
๐ธ๐ฎ represor
๐ฎ๐ธ bรฆlandi
๐ฐ๐ฟ ัะตะฟัะตััะพั
๐ฌ๐ช แ แแแ แแกแแ แ
๐ฆ๐ฟ repressor
๐ฒ๐ฝ represor
Word origin
The term 'repressor' originated in the field of genetics in the mid-20th century. It was first used to describe proteins that regulate gene expression by inhibiting the transcription of specific genes. The discovery of repressors revolutionized our understanding of gene regulation and paved the way for further research in molecular biology and genetics.
See also: irrepressible, repression, repressive, unrepressed.