Transkriptsionnaya Aktivnost'  V Geneticheskikh Lokusakh E.coli: Soderzhashchikh Potentsial'nye Promotory Dlya Sinteza Antismyslovykh Rnk - Ol'ga Ozolin' - Books - LAP LAMBERT Academic Publishing - 9783848421404 - April 3, 2012
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Transkriptsionnaya Aktivnost' V Geneticheskikh Lokusakh E.coli: Soderzhashchikh Potentsial'nye Promotory Dlya Sinteza Antismyslovykh Rnk Russian edition

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Regulyatsiya ekspressii bakterial'nykh genov mozhet osushchestvlyat'sya na neskol'kikh funktsional'nykh urovnyakh. V pervuyu ochered', v protsesse initsiatsii transkriptsii. Traditsionno schitaetsya, chto effektivnost' sinteza RNK kontroliruetsya belkami ? aktivatorami i repressorami ? obshchee chislo kotorykh v bakterial'noy kletke mozhet byt' okolo 300. Krome togo, sushchestvuet eshche odin klass regulyatorov ? malye netransliruemye RNK. Ikh razmer var'iruet ot 37 do 400 nukleotidov, a mekhanizmy deystviya ochen' raznoobrazny. Dlya E.coli v nastoyashchee vremya izucheno 87 regulyatornykh RNK, bol'shaya chast' kotorykh kodiruetsya nezavisimymi genami. Dannye sistemnogo analiza pozvolyayut predpolozhit', chto obshchee ikh kolichestvo v kletke gorazdo bol'she, chem belkovykh regulyatorov transkriptsii. Pri etom tol'ko 10 izvestnykh netransliruemykh RNK transkribiruyutsya iz kodiruyushchikh posledovatel'nostey v antismyslovom napravlenii. Obrazuya komplementarnye dupleksy s mRNK vblizi initsiiruyushchego kodona, oni vliyayut na ikh assotsiatsiyu s ribosomami i, sledovatel'no, moduliruyut sintez belkovogo produkta. Pri svyazyvanii s drugimi uchastkami matrichnoy RNK, aRNK mogut izmenyat' ikh stabil'nost', podderzhivaya otnositel'noe soderzhanie mRNK na optimal'nom urovne.

Media Books     Paperback Book   (Book with soft cover and glued back)
Released April 3, 2012
ISBN13 9783848421404
Publishers LAP LAMBERT Academic Publishing
Pages 164
Dimensions 150 × 10 × 225 mm   ·   262 g
Language German  

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