Ib qho ntawm cov no yog qhov sib npaug ntawm qhov nkhaus nyob rau hauv thawj pKa ntawm 2.34, qhia tias glycine yog qhov tsis zoo nyob ze ntawm pH. Lwm qhov chaw buffering txuas ntxiv rau ~ 1.2 pH units nyob nruab nrab ntawm pH 9.60.
Vim li cas glycine thiaj li siv tsis tau?
Glycine yog siv los ua tus neeg sawv cev buffers. Glycine ntawm qhov qis qis tiv thaiv pH txo qis hauv cov tshuaj. Nws kuj stabilizes cov protein thaum muaj nyob rau hauv lub xeev amorphous.
Yuav ua li cas amino acid yog qhov tsis zoo ntawm lub cev pH?
Tsuas yog cov amino acids nrog R-pawg uas muaj peev xwm buffering nyob rau hauv lub physiological pH ntau yog histidine(imidazole; pK′=6.0) thiab cysteine (sulfhydryl; pK′=8.3).
Puas piv txwv ntawm lub cev tsis muaj zog?
Physiological buffers yog cov tshuaj siv los ntawm lub cev los tiv thaiv kev hloov pauv loj hauv pH ntawm lub cev. Plaub physiological buffers yog lub bicarbonate, phosphate, hemoglobin, thiab protein systems.
Puas glycine tsim hydrogen bonds?
Intramolecular Hydrogen Bonds hauv Amino Acids.
Glycine forms ib conformer nrog O-H···N hydrogen bond. Nrog kev sib cais-valence hauv paus txheej txheem, tus conformer no yog daim iav symmetrical, whereas lub hauv paus teeb nrog polarization functions yield ib tug zoo xws li, tab sis me ntsis unsymmetrical geometry.
