Nyob rau hauv molecular biology thiab bioinformatics, qhov kev pom zoo ib ntus yog qhov kev txiav txim ntawm feem ntau cov residues, xws li nucleotide lossis amino acid, pom ntawm txhua txoj haujlwm hauv kev sib txuas ua ke.
txhais li cas los ntawm kev pom zoo ib ntus?
Ib qhov kev pom zoo yog ib ntu ntawm DNA, RNA, lossis cov protein uas sawv cev rau kev sib raug zoo, muaj feem cuam tshuam … uas sib haum rau thaj chaw khaws cia ntawm qhov tseem ceeb rau cov qauv thiab kev ua haujlwm.
Kev pom zoo ua ntu zus hauv DNA yog dab tsi?
A theoretical tus neeg sawv cev nucleotide lossis amino acid sequence nyob rau hauv uas txhua nucleotide los yog amino acidyog ib qho uas tshwm sim feem ntau ntawm qhov chaw hauv qhov sib txawv uas tshwm sim hauv xwm. Cov kab lus tseem hais txog qhov tseeb ib ntus uas kwv yees qhov kev pom zoo theoretical.
Cov piv txwv kev pom zoo yog dab tsi?
Ib qhov kev pom zoo ib ntus yog qhov kev txhawb nqa zoo tshaj plaws hauv DNA - hauv E. coli, piv txwv li, pom ob, a -35 ib ntus thiab -10 ntu. Qhov kev pom zoo -35 yog TTGACA, thiab -10 qhov kev pom zoo yog TATAAT. …
Vim li cas lawv thiaj hu ua kev pom zoo ua ntu zus?
Notation. Lub conserved sequence motifs yog hu ua kev pom zoo ua ntu zus thiab lawv qhia tias cov residues tau khaws cia thiab cov residues twg yog qhov sib txawv.
