Yeast mitochondrial mRNAs yog tsis polyadenylated. Hloov chaw, lawv qhov kev ruaj ntseg yog tswj hwm los ntawm dodecamer ib ntus ntawm 3'-kawg.
YPuas yog mitochondrial noob Polyadenylated?
Tshwj xeeb, txawm hais tias lawv cov keeb kwm prokaryotic, tib neeg cov ntaub ntawv mitochondrial muaj ruaj khov 3′-kawg poly(A) tails, zoo li nucleus-encoded mRNAs. … Kev sib koom ua ke ntawm cov kab ke no nrog ruaj khov 3′-kawg polyadenylation, txawm tias lawv zoo li qhov cuam tshuam tsis zoo, yog li tam sim no tsis tau muaj nyob hauv cov kab mob thiab lwm yam organelles.
Cov noob mitochondrial qhia li cas?
Genes yog kis thoob plaws ob qho tib si hnyav (H) thiab lub teeb (L) strands ntawm mtDNA Hloov chaw pib ntawm ib tus neeg tshwj xeeb cov neeg txhawb nqa, kev sau cov tsiaj txhu mtDNA pib los ntawm ib leeg. Cov neeg txhawb nqa rau H- thiab L-strand transcription, thiab nce nyob ib ncig ntawm yuav luag tag nrho qhov ntev ntawm genome.
Dab tsi ua rau polyadenylation?
Cov txheej txheem ntawm polyadenylation pib raws li transcription of ib noob terminates. … Txawm li cas los xij, hauv ob peb hom ntawm tes, mRNAs nrog luv poly(A) tails yog khaws cia rau tom qab ua kom rov qab los ntawm polyadenylation hauv cytosol. Hauv qhov sib piv, thaum polyadenylation tshwm sim hauv cov kab mob, nws txhawb RNA degradation.
Dab tsi yog mitochondrial noob encode?
Lub mitochondrial genome muaj 37 genes uas encode 13 proteins, 22 tRNAs, thiab 2 rRNAs 13 mitochondrial gene-encoded proteins tag nrho qhia cov hlwb los tsim cov protein subunits ntawm cov enzyme complexes. ntawm oxidative phosphorylation system, uas ua rau mitochondria ua lub zog ntawm peb lub hlwb.
