hydrogen bonds … yog qhov muaj nyob ntawm peptide txuas, pab pawg -CO-NH-, uas tshwm ntawm txhua khub ntawm cov amino acids uas nyob ib sab. Qhov txuas no muab NH pab pawg uas tuaj yeem tsim cov ntawv cog lus hydrogen rau lub atom uas tsim nyog thiab cov pa oxygen atom, uas tuaj yeem ua raws li qhov tsim nyog receptor.
Yuav ua li cas daim ntawv cog lus yog peptide daim ntawv cog lus?
Daim ntawv cog lus uas tuav ua ke ntawm ob lub amino acids yog peptide daim ntawv cog lus, los yog a covalent chemical bond ntawm ob lub tebchaw(qhov no, ob lub amino acids). Nws tshwm sim thaum pawg carboxylic ntawm ib lub molecule reacts nrog cov amino pawg ntawm lwm cov molecule, txuas ob lub molecules thiab tso ib tug dej molecule.
Peptide daim ntawv cog lus zoo ib yam li daim ntawv cog lus hydrogen?
Yog vim li cas qhov no yog vim li cas cov atoms hauv peptide daim ntawv cog lus muaj nqi ntau dua li cov hydrogen thiab oxygen atoms hauv dej molecules, thiab kev sib cuam tshuam uas cuam tshuam nrog cov nqi ntau dua. Yog li, hydrogen daim ntawv cog lus ntawm ob daim ntawv cog lus peptide muaj zog dua li daim ntawv cog lus hydrogen ntawm daim ntawv cog lus peptide thiab dej.
Puas proteins muaj hydrogen bonds?
Hydrogen bonds yog tseem ceeb ntawm cov qauv proteinLos ntawm cov ntsiab lus lees paub, lawv tshwm sim thaum twg ib qho proton sib koom los ntawm ob lub electronegative atoms. Li no, tsuas yog hydrogens sib txuas rau nitrogen thiab oxygen atoms feem ntau yog txiav txim siab hauv kev txheeb xyuas cov protein hydrogen bond networks.
Vim li cas thiaj muaj hydrogen bonds hauv cov protein?
Hydrogen bonding confers rigidity to the protein structure and specificity to intertermolecular interactions. … Thaum lub sij hawm cov protein folding, qhov faus ntawm hydrophobic sab-chains yuav tsum tau intramolecular hydrogen bonds yuav tsum tau tsim ntawm lub ntsiab saw polar pawg.
