2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Lub teeb liab polyadenylation - cov kab ke motif lees paub los ntawm RNA cleavage complex- sib txawv ntawm pab pawg ntawm eukaryotes. … Qhov chaw cleavage txuam nrog lub teeb liab polyadenylation tuaj yeem sib txawv txog li 50 nucleotides. Thaum lub RNA yog cleaved, polyadenylation pib, catalysed los ntawm polyadenylate polymerase.
Lub hom phiaj ntawm lub teeb liab polyadenylation yog dab tsi?
Lub hom phiaj thiab cov txheej txheem ntawm polyadenylation sib txawv ntawm cov xovtooj ntawm tes, tab sis polyadenylation feem ntau ua haujlwm rau txhawb nqa cov ntawv sau ntev hauv eukaryotes thiab txhawb nqa cov ntawv degradation hauv prokaryotes.
Qhov teeb meem polyadenylation nyob qhov twg pom?
mRNA cleavage nyob rau hauv cov tsiaj yog xav tias yuav tswj tau los ntawm ob lub ntsiab lus tseem ceeb, cov teeb liab polyadenylation zoo (PAS) nyob 10–30 bases upstream ntawm mRNA cleavage site (CS)thiab qhov kev txuag tsawg dua U-nplua nuj, hu ua downstream sequence element (DSE) thiab nyob hauv thawj 30 nucleotides…
Qhov teeb meem polyadenylation nyob qhov twg feem ntau nyob hauv cov noob?
Nyob rau hauv cov kab mob mammalian, zoo polyadenylation yuav tsum muaj ob lub ntsiab sib lawv liag: ib tug heev conserved AAUAAA teeb liab nyob 10–30 nucleotide 5′ rau qhov chaw cleavagethiab ib tug ntau variable GU- cov khoom nplua nuj, 20–40 hauv paus 3′ ntawm qhov chaw (saib Proudfoot 1991; Colgan thiab Manley 1997 rau kev tshuaj xyuas).
Dab tsi yog qhov ntau tshajKev pom zoo ua ntu zus rau polyadenylation?
Yuav luag tag nrho cov eukaryotic polyadenylation cov cim muaj cov ntsiab lus tseem ceeb,kev pom zoo ua ntu zus AAUAAA (los yog qhov sib txawv) ~ 10-35 nucleotides ntws ntawm qhov chaw tiag tiag ntawm poly(A) ntxiv(saib nqe 6–7, 12).
Pom zoo:
Puas yog cov dab dab dab dab dab dab dab dab dab dab dab dab?
Myth: Ib tug dab tshos tsis yog neeg ncaj ncees yog tiasnws haum yog. Fact: Tu siab, qhov no yog ib lo lus tsis tseeb uas tau raug perpetuated los ntawm aversive trainers. Txawm hais tias haum rau lub caj dab kom zoo khawb rau hauv cov tawv nqaij rhiab nyob ib ncig ntawm lub caj dab, uas ua rau muaj kev puas tsuaj loj rau cov thyroid, esophagus, thiab trachea.
Lub teeb liab teeb liab yog dab tsi?
raug liam tias mus dhau lub teeb liab, lossis ua txhaum cov paib tsheb lossis cov cim kev, tab tom ua txhaum ntau zuj zus. Cov kev ua txhaum cai no raug kuaj pom los ntawm kev soj ntsuam ntawm Tub Ceev Xwm thiab / lossis los ntawm kev siv lub koob yees duab.
Puas yog qhov sib lawv liag monotonic?
Yuav ua li cas yog cov khoom ntawm cov lej lej lej lej lej lej Ib qho lej lej lossis lej lej yogcov lej xws li qhov sib txawv ntawm cov lus sib law liag . Piv txwv li, kab lus 5, 7, 9, 11, 13, 15,… yog ib qho kev ua lej lej nrog qhov sib txawv ntawm 2.
Cov tsom iav liab liab yog dab tsi?
Rose-tinted tsom iav tuaj yeem pab nrog qhov muag pom thiab pab txo qhov pom ntawm lub khoos phis tawj thiab los ntawm daus. … Ib qho txiaj ntsig tseem ceeb rau cov xim av thiab grey yog tias lawv tuaj yeem ua polarized, uas muaj kev tiv thaiv glare zoo dua thiab tshwj xeeb tshaj yog zoo rau cov daus lossis dej ua si.
Cov pob liab liab ua rau koj cov tawv nqaij yog dab tsi?
Nws ntxias, tab sis popping los yog nyem pob txuv yuav tsis tas tshem qhov teeb meem. Squeezing tuaj yeem thawb cov kab mob thiab cov kua paug tob rau hauv daim tawv nqaij, uas yuav ua rau o thiab liab ntau dua. Squeezing kuj tuaj yeem ua rau pob khaus thiab tuaj yeem ua rau koj mus tas li pits lossis caws pliav.
