2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Introduction: Denaturation ntawm cov proteins cuam tshuam kev cuam tshuam thiab kev puas tsuaj ntawm ob qho tib si theem nrab thiab qib theem. Txij li thaum cov tshuaj tiv thaiv denaturation yog tsis muaj zog txaus los tawgcov peptide daim ntawv cog lus, cov qauv tseem ceeb (ib ntu ntawm cov amino acids) tseem zoo ib yam tom qab txheej txheem denaturation.
Yuav tsis cuam tshuam dab tsi thaum muaj protein ntau?
Denatured proteins poob lawv cov qauv 3D thiab yog li tsis tuaj yeem ua haujlwm. Protein folding yog qhov tseem ceeb ntawm seb lub globular lossis membrane protein tuaj yeem ua nws txoj haujlwm kom raug; nws yuav tsum tau muab tais rau hauv txoj cai zoo los ua haujlwm.
Dab tsi cuam tshuam rau cov protein denaturation?
Hloov pauv hauv pH, Kub nce, raug UV lub teeb / hluav taws xob (dissociation of H bonds), Protonation amino acid residues, ntsev ntau ntauyog cov ntsiab lus tseem ceeb uas ua rau muaj kev puas tsuaj rau lub cev. protein rau denature.
YYuav ua li cas thaum cov protein yog denatures?
Denaturation koom nrog kev tawg ntawm ntau qhov kev sib txuas tsis muaj zog, lossis kev sib cog lus (piv txwv li, hydrogen bonds), nyob rau hauv ib qho protein molecule uas yog lub luag haujlwm rau cov qauv ntawm cov protein ntau. nyob rau hauv nws natural (native) xeev. Denatured proteins muaj ib tug looser, ntau random qauv; feem ntau yog insoluble.
4 yam uas ua rau cov protein denaturation yog dab tsi?
Ntau yam ua rau muaj cov protein ntau. Ib txhia ntawm lawv yog ib tugnce kub uas ruptures cov protein molecules ' qauv, hloov pH theem, ntxiv cov hlau hnyav ntsev, acids, hauv paus, protonation ntawm amino acid residues, thiab raug UV teeb thiab hluav taws xob.
Pom zoo:
Kev cuam tshuam lossis cuam tshuam?
Affect feem ntau yog cov lus qhia lub ntsiab lus "kom ua rau muaj kev cuam tshuam," xws li " huab cua cuam tshuam nws lub siab." Cov nyhuv feem ntau yog lub ntsiab lus "kev hloov pauv uas tshwm sim thaum ib yam dab tsi ua tiav lossis tshwm sim,"
Kev sib cuam tshuam ntawm tus tswv thiab tus nora cuam tshuam li cas?
Kev sib cuam tshuam ntawm Helmer thiab Nora cuam tshuam li cas? Nora paub tias Helmer qhov kev ua yog npaj los tuav nws tus txiv neej, tsis yog lawv txoj kev sib yuav. … Nora tau dag nws txiv lub npe ntawm cov nyiaj qiv uas nws tau txais los ntawm Krogstad, thiab nws tau hem tias yuav nthuav tawm nws rau Helmer.
Puas yog cov ntawv cog lus tsis cuam tshuam yuav raug siv nyob rau hauv california?
California cov tsev hais plaub muaj kev cog lus tsis raug cai tsis muaj kev sib twthaum txiav haujlwm lossis muag cov paj laum hauv kev lag luam yam tsis tau nug txog lawv qhov tsim nyog, lawv tau ua tsis raug lwm yam kev cog lus txwv ntawm kev lag luam kev lag luam thiab kev lag luam kev lag luam nkaus xwb yog tias muaj kev txwv no … Puas yog cov lus hais tsis raug cuam tshuam?
Puas tsis cuam tshuam cuam tshuam txog kev ywj pheej?
Cov lus tsis sib xws thiab independent yuav raug siv sib hloov ua lus Askiv, tab sis lawv tsis yog lus piv txwv hauv lej. Independent random variables are uncorrelated, but uncorrelated random variables tsis yog ib txwm ywj siab. Puas yog qhov tsis muaj kev cuam tshuam ib txwm muaj kev ywj pheej?
Tsis cuam tshuam lossis cuam tshuam?
Kuv yuav tsum siv 'tsis cuam tshuam los ntawm' lossis 'tsis cuam tshuam los ntawm'? Qhov tseeb yog 'tsis cuam tshuam los ntawm'. Cov kab lus no feem ntau tsis meej pem vim lawv muaj cov ntawv sau zoo sib xws. Tsis muaj kev cuam tshuam lossis cuam tshuam?
