Video: Dab tsi amino acid stabilizes tertiary qauv ntawm cov protein?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov kev sib cuam tshuam no yog ua tau los ntawm folding rau cov saw hlau kom coj cov amino acids nyob ze ze ua ke. 2. Tertiary qauv yog stabilized los ntawm disulfide bonds, ionic kev sib tshuam, hydrogen bonds , metallic bonds, thiab hydrophobic interactions.
Yog li ntawd, dab tsi kev sib cuam tshuam stabilize lub tertiary qauv ntawm ib tug protein?
Lub zog loj stabilizing tus qauv tertiary yog kev sib cuam tshuam ntawm hydrophobic ntawm nonpolar sab chains hauv cov tub ntxhais ntawm cov protein. Ntxiv stabilizing rog muaj xws li electrostatic kev sib cuam tshuam ntawm ionic pawg ntawm cov nqi rov qab, hydrogen bonds ntawm pawg polar, thiab disulfide daim ntawv cog lus.
Ib tug kuj yuav nug, leej twg ntawm cov amino acids no koom nrog covalent bonding uas stabilizes tertiary qauv ntawm ntau cov proteins? Raws li nrog disulfide choj, cov no hydrogen bonds tuaj yeem nqa ob feem ntawm cov saw hlau uas nyob deb deb ntawm qhov sib lawv liag. Cov choj ntsev, kev sib cuam tshuam ionic ntawm qhov zoo thiab qhov tsis zoo ntawm qhov chaw ntawm cov amino acid sab chains, kuj pab kom ruaj khov rau cov qauv tertiary ntawm cov protein.
Ua raws li qhov no hauv kev txiav txim siab, yuav ua li cas cov amino acids cuam tshuam rau cov qauv tertiary ntawm cov protein?
Ib zaug lub nonpolar amino acids tau tsim lub nonpolar core ntawm lub protein ntau , qaug zog van der Waals rog stabilize lub protein ntau . Tsis tas li ntawd, hydrogen bonds thiab ionic kev sib cuam tshuam ntawm cov polar, raug them amino acids pab txhawb rau tertiary qauv.
Cov qauv tertiary ntawm cov protein khaws cia li cas?
Kev piav qhia: Tertiary qauv yog ruaj khov los ntawm ntau yam kev sib cuam tshuam, tshwj xeeb yog cov pab pawg ua haujlwm sab hauv uas koom nrog hydrogen bonds , ntsev choj, covalent disulfide bonds , thiab hydrophobic kev sib cuam tshuam.
Pom zoo:
Hom kev sib txuas dab tsi stabilizes tertiary protein qauv?
Cov qauv tertiary ntawm cov protein yog hais txog tag nrho peb-dimensional kev npaj ntawm nws cov saw polypeptide hauv qhov chaw. Nws feem ntau ruaj khov los ntawm sab nraud polar hydrophilic hydrogen thiab ionic bond kev sib cuam tshuam, thiab kev sib cuam tshuam hauv hydrophobic ntawm nonpolar amino acid sab chains (Fig. 4-7)
Lub zog twg yog qhov muaj feem cuam tshuam tshaj plaws hauv kev txiav txim siab tertiary qauv ntawm cov protein?
Lub tertiary qauv ntawm ib tug protein yog peb seem ntawm cov protein. Disulfide bonds, hydrogen bonds, ionic bonds, thiab hydrophobic kev sib cuam tshuam tag nrho cov cuam tshuam rau cov qauv ntawm cov protein
Thaum lub ntim ntawm ib qho piv txwv ntawm cov pa roj yog txo lub siab ntawm cov qauv ntawm cov pa roj?
Kev txo qis Cov pa roj sib xyaw txoj cai hais tias lub siab ntawm cov pa roj yog inversely cuam tshuam nrog lub ntim thiab ncaj qha ntsig txog qhov kub thiab txias. Yog tias qhov kub thiab txias yog nyob tas li, qhov sib npaug raug txo rau Boyle txoj cai. Yog li ntawd, yog tias koj txo qhov siab ntawm cov roj av tas li, nws qhov ntim yuav nce ntxiv
Tus qauv qauv yog dab tsi Qhov txawv ntawm tus qauv qauv thiab tus qauv molecular yog dab tsi?
Cov mis mos molecular siv cov cim tshuaj thiab cov ntawv sau npe los qhia cov naj npawb ntawm cov atoms sib txawv hauv cov molecule lossis compound. Ib qho empirical formula muab qhov yooj yim tshaj plaws, tag nrho tus lej piv ntawm atoms hauv ib qho chaw. Cov qauv qauv qhia txog kev sib koom ua ke ntawm cov atoms hauv cov molecule
Dab tsi yog theem tertiary ntawm DNA qauv?
Tertiary qauv hais txog qhov chaw ntawm cov atoms nyob rau hauv peb-dimensional qhov chaw, coj mus rau hauv kev txiav txim siab geometrical thiab steric txwv. Nws yog ib qho kev txiav txim siab dua li cov qauv thib ob, uas loj-loj folding nyob rau hauv ib tug linear polymer tshwm sim thiab tag nrho cov saw yog folded rau hauv ib tug tshwj xeeb 3-dimensional duab