Pepsin Pearls Pepsin yog ib qho plab enzyme uas pab zom cov proteins pom hauv cov zaub mov noj. Gastric Chief cells secrete pepsin as an inactive zymogen hu ua pepsinogen pepsinogen Background: Serum pepsinogen assay (sPGA) combining concentration of pepsinogen I (PG I), and the ratio of PG I/II is the noninvasive biomarker rau kev kwv yees mob atrophic gastritis (CAG) thiab neoplasms cuam tshuam cov mucosal secretory xwm txheej. https://pubmed.ncbi.nlm.nih.gov › …
Kev kuaj xyuas kev ua tau zoo ntawm cov tshuaj ntshav pepsinogen rau kev twv ua ntej…
. Parietal hlwb nyob rau hauv lub plab hauv ob sab phlu secrete hydrochloric acid uas txo cov pH ntawm lub plab.
Puas muaj pepsin hauv cov hnyuv?
Pepsins yog zais los ntawm Brunner lub qog ntawm duodenum, thiab cov crypts ntawm Lieberkühn ntawm cov hnyuv me secrete cov kua dej.
Amylase thiab pepsin pom nyob qhov twg hauv lub cev?
In Summary: Parts of the digestive System
Saliva muaj ib qho enzyme hu ua amylase uas zom cov carbohydrates. Cov zaub mov bolus taug kev los ntawm txoj hlab pas los ntawm perist altic txav mus rau plab. Lub plab muaj ib qho chaw acidic heev. Ib qho enzyme hu ua pepsin zom cov protein hauv plab.
pepsin ua haujlwm zoo tshaj plaws nyob qhov twg?
Lub plab zom mov ntawm pepsin yog qhov zoo tshaj plaws ntawm cov kua qaub ntawm cov kua qaub ib txwm (pH 1.5–2.5). Nyob rau hauv txoj hnyuv, lub plab acids yog neutralized (pH 7),thiab pepsin tsis siv lawm.
pepsin yog dab tsi?
Pepsin yog a saw protein (monomer) tsim los ntawm ob qhov zoo sib xws folding domains sib cais los ntawm qhov sib sib zog nqus cleft. Lub catalytic site ntawm pepsin yog tsim nyob rau hauv junction ntawm lub sau, txhua tus sau muaj ob aspartic acid residues, Asp32 thiab Asp215.
