Mitochondrial mRNAs hauv cov poov xab cerevisiae) mitochondrial mRNAs yog tsis polyadenylated, thiab tsis muaj cov haujlwm PAP tau txheeb xyuas hauv cov kabmob no hauv cov poov xab. Hloov chaw, lawv nqa ib qho kev txuag dodecamer ib ntus, AAUAA(U/C)AUUCUU, ntawm lawv 3′-kawg [46].
Do mitochondria ua cov ntawv sau?
Kev txhais lus hauv tib neeg mitochondria yog tsav los ntawm DNA-dependant RNA polymerase hu ua PORMT, uas yog cov qauv zoo ib yam li RNA polymerases hauv T3 thiab T7 bacteriophages [7, 8]. … TFAM yog ib qho DNA-binding protein, uas, ntxiv rau kev ua kom transcription, kuj ntim DNA hauv nucleoid [11].
Puas mitochondria nqa cov ntaub ntawv genetic?
Txawm hais tias feem ntau DNA tau ntim rau hauv chromosomes nyob rau hauv lub nucleus, mitochondria kuj muaj me me ntawm lawv tus kheej DNA. Cov khoom siv caj ces no hu ua mitochondrial DNA lossis mtDNA. … Mitochondrial DNA muaj 37 cov noob, tag nrho cov no yog qhov tseem ceeb rau kev ua haujlwm ntawm mitochondrial.
Puas yog polyadenylated transcripts viral?
Cov kev tshawb pom no qhia tias rau polyadenylation tshwm sim, cov polymerase yuav tsum tau khi rau 5′ kawg ntawm cov qauv molecule tau sau tseg. Kwv yees li 5% ntawm cov ntawv sau ua hauv qhov system no yog polyadenylated. Qhov no yog qhov feem ntau qis dua, piv rau cRNA, dua li pom hauv cov kab mob kis kab mob.
Txhua mRNA puas muaj poly A tail?
Nyob mRNAs, thepoly(A) tail tiv thaiv mRNA molecule los ntawm enzymatic degradation nyob rau hauv lub cytoplasm thiab pab nyob rau hauv transcription termination, export ntawm mRNA los ntawm lub nucleus, thiab kev txhais lus. Yuav luag tag nrho eukaryotic mRNAs yog polyadenylated, tshwj tsis yog tsiaj replication-dependent histone mRNAs.
