Txoj kev txwv enzymes feem ntau lees paub palindromic sequences, txhais tau hais tias ob qho tib si ntawm DNA yuav muaj qhov sib npaug thaum nyeem 5′ txog 3′.
Puas tag nrho txwv cov enzymes Paub txog palindromic sequences?
Hom IIQ txwv enzymes cleave DNA symmetrically nyob rau hauvlawv qhov kev lees paub, uas txawv ntawm ib khub ntawm palindrome. Lub hauv paus chiv keeb ntawm hom IIQ enzymes tej zaum yuav tshwm sim los ntawm duplication thiab evolutionary hloov nyob rau hauv cov noob ntawm cov poj koob yawm txwv txwv enzymes paub ib tug palindromic DNA ib theem zuj zus.
Puas txwv cov enzymes txiav DNA ntawm cov chaw palindromic?
Txoj kev txwv endonucleases yog ib chav kawm ntawm cov enzymes uas paub txog cov DNA tshwj xeeb, feem ntau 6- txog 8-pair-pair palindromes, thiab feem ntau txiav cov pob txha DNA ntawm qhov sib npaug ntawm qhov kev lees paubntawm ob txoj hlua.
Puas txwv qhov chaw ib txwm palindrome?
Cov no feem ntau yog palindromic sequences (vim txwv kev txwv cov enzymes feem ntau khi li homodimers), thiab ib qho kev txwv tshwj xeeb enzyme yuav txiav qhov sib lawv liag ntawm ob nucleotides hauv nws qhov chaw lees paub, lossis qhov chaw nyob ze..
Vim li cas kev txwv enzyme muaj ib qho kab mob palindromic?
Kev piav qhia: Cov enzymes xws li txwv tsis pub cov enzymes yuav tsum paub txog cov kab ke tshwj xeeb txhawm rau ua nws txoj haujlwm. Nws khi rau DNA nkaus xwb hauv ib qho kev teeb tsa tshwj xeeb. … Ib kab lus palindromic kuj nce txoj hauv kev uas ob txoj kab DNA raug txiav.
