Nyob hauv cov nroj tsuag thiab ntau hom kab mob, cysteine yog synthesized ntawm ob-kauj ruam txoj hauv kev los ntawm nws cov precursor L-serineHauv E. coli, piv txwv li, CysE hloov serine rau hauv O. -acetylserine thiab tom qab ntawd CysK lossis CysM suav nrog sulfur los ntawm hydrogen sulfide lossis thiosulfate los ua L-cysteine (Fig. 1).
Peb tau cysteine los ntawm qhov twg?
Cysteine muaj nyob rau hauv feem ntau cov khoom noj muaj protein ntau, xws li nqaij qaib, qaib ntxhw, yogurt, cheese, qe, noob paj noob hlis thiab legumes. N-acetyl cysteine (NAC) yog ib daim ntawv ntxiv ntawm cysteine.
Yuav ua li cas thiaj tau cysteine lawm?
Ntaus, noob, nplej thiab legumes yog cov nroj tsuag zoo ntawm cov amino acid no. Chickpeas, couscous, qe, lentils, oats, qaib ntxhw thiab walnuts yog qhov zoo ntawm kev txais cysteine los ntawm koj cov khoom noj. Lwm yam tshaj li cov protein, zaub allium yog ib qho tseem ceeb ntawm kev noj haus sulfur.
Cov zaub mov twg muaj L-cysteine ?
L-cysteine muaj nyob hauv ntau yam khoom noj uas peb noj. Nqaij npuas, nqaij nyuj, nqaij qaib, thiab tuna yog txhua qhov chaw zoo. Yog li ntawd yog oatmeal, qe, thiab yogurt.
Dab tsi ua rau cysteine deficiency?
Cysteine deficiencies txheeb xyuas los ntawm cov kab mob metabolic los yog txo qis hauv cov kua hauv lub cev tau cuam tshuam nrog: 1) tsis muaj zog tiv thaiv antioxidant; 2) txo qis peev xwm los metabolize tshuaj los yog tshuaj lom; 3) kev nyuaj siab lub cev tsis muaj zog; 4) ib co psycoses; thiab 5) homocystinemia.
