University:
Swansea University
Course:
PM-133 | Evolutionary and Molecular Genetics
Academic year:

2023
Views:

319

Pages:

3
Author:

Amal J.

ATTENUATIONn n Rdivided into 4I, II , III & IVpais pair pairsfollowed by (U)nstringssignal for termination3 conditions,1 Noprotein Synthesis / no ribosome / only froms criptionRNAPolIIRNAIPolIIILeaderterminationpepticleRNAyouIVIII14aaPolII/I10thof11 th codonUGGlevel of tryptophan low ribromehalt@ 10th/11th codon, II & III canpair, I in not available for I,no stein and loop formed andtranscription continue to produceStructural geneserythrose 4-C & PEP Precursor of alomatic aminoa 2 When tryptophon in highribosome more fast andoverlap 'I'I' l'(one ribosome overlap 80 NTS) nowand terminate transcription.I cannot pair with II' now IV emerge III & IV pairsRNPIIIIIRNAyou170IPolIVIIIIIItermination3When Tryptophor is lowRNA,PolIVIIRNAIPolIIIIIUGGhalttranscription continuesRNOto ABCDmRNAdegradationIIIIn RNA first NT contains 3PR3'sprank activitiesRNA pyco phosphate hydiolaseEutif Roli5' POF 3'Ah Emalet carsetcollegedRNGaseEdi aP3' / PP3'3' C/3(A),for important circule are555'1Polynucleoticyly 304OligoribonucleokidauseRhlb2phosphorylaseNMQPOKNaseChelicase)PNPaseremoveNDP20 structure (Jfony paired region present in RNA Degradation of MRNA ending with stem and looprequire (A)n - polyad englation, that sevve as the dockingsite for special helicase that can unwind the stemand loop and facilitate degradation