Pectate lyases yog ua haujlwm los ntawm kab mob pathogenic kom degrade cov ntaub so ntswg thiab muab cov as-ham rau cov kab mob loj hlob. Pectinolytic enterobacteria tsim cov enzymes thiab thauj mus los siv PGA lossis pectin ua cov pa roj carbon thiab lub zog.
pectate lyase ua dab tsi?
Pectate lyase (EC 4.2. 2.2) yog ib qho enzyme koom nrog hauv maceration thiab mos rotting ntawm cov ntaub so ntswg. Pectate lyase yog lub luag haujlwm rau kev tshem tawm cov cleavage ntawm pectate, yielding oligosaccharides nrog 4-deoxy-α-D-mann-4-enuronosyl pawg ntawm lawv qhov tsis txo qhov kawg.
Qhov twg yog qhov kev xav ntawm proton nyob rau hauv pectate lyase?
Nyob hauv Michaelis complexob lub calcium ions khi ntawm C6 carboxylate ntawm d-galacturonate residue thiab enzyme aspartates ntawm qhov chaw nquag (+ 1 subsite), lawv thim electrons acidifying. C5 proton pab txhawb nws abstraction los ntawm catalytic arginine.
pectinase nyob qhov twg?
Pectinases muaj nyob hauv txiv hmab txiv ntoo ntawm cov nroj tsuag qhov chaw uas lawv ua lub luag haujlwm ntuj hauv cov txheej txheem ripening; tab sis microbial qhov chaw yog siv rau kev tsim khoom loj, vim lawv yooj yim ntawm kev sib faib thiab kev saib xyuas, nyob rau hauv kev tswj xyuas. Ntau hom kab mob fungal, kab mob, thiab cov kab mob poov xab yog siv rau kev tsim pectinases.
Pectinase puas tsim kev puas tsuaj rau tib neeg?
Pectinase yog ib qho khoom siv digestive vim pectin yog ib qho tseem ceebnyob rau hauv tib neeg kev noj haus. Ntxiv nrog rau cov khoom noj khoom haus xws li txiv hmab txiv ntoo thiab zaub, pectin yog siv los ua cov thickener thiab gelling tus neeg sawv cev hauv ntau cov zaub mov npaj xws li jellies thiab jams.
