Qhov txawv ntawm porphyrin thiab Protoporphyrin yog dab tsi?

2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36

Tus yuam sij Qhov sib txawv ntawm porphyrin thiab protoporphyrin yog tias cov porphyrin yog ib pawg ntawm cov tshuaj tsw qab uas muaj plaub hloov pyrrole subunits interconnected rau ib leeg, whereas protoporphyrin tshuaj yog derivative ntawm cov porphyrin uas muaj propionic acid pawg.

Ua kom pom qhov no, lub nplhaib protoporphyrin yog dab tsi?

Lub sij hawm dav dav Cov tshuaj protoporphyrin hais txog porphine derivatives uas muaj cov txheej txheem hydrogen atoms hauv plaub pyrrole nplhaib hloov los ntawm plaub pawg methyl -CH. 3 (M), ob pawg vinyl −CH = CH. 2 (V), thiab ob pawg propionic acid -CH. 2 - CH. 2-COOH (P).

Tsis tas li ntawd, Metalloporphyrins yog dab tsi? metalloporphyrin (plural metalloporphyrins ) (biochemistry) Txhua qhov sib xyaw, xws li heme, tsim los ntawm kev sib xyaw ntawm porphyrin thiab hlau, feem ntau hlau, tooj liab, nyiaj, zinc, lossis magnesium.

Ib yam li ntawd, tib neeg nug, ua haujlwm ntawm porphyrin yog dab tsi?

Hauv ib lub hlis, lub cov porphyrin nplhaib pab ib qho tseem ceeb muaj nuj nqi . Cov nitrogen molecules nyob rau hauv nruab nrab ntawm lub nplhaib muaj peev xwm ntawm "hosting" ib tug hlau molecule. Nws yog qhov no cov porphyrin qauv, tuav hlau, uas muab cov ntshav nws cov xim liab.

Protoporphyrin tsim li cas?

Heme biosynthesis. Lub precursor compound, protoporphyrin tshuaj III yog synthesized los ntawm glycine thiab succinyl-CoA nyob rau hauv peb kauj ruam: (1) synthesis ntawm δ-aminolevulinic acid (ALA), (2) tsim ntawm porphobilinogen, thiab (3) synthesis ntawm Cov tshuaj protoporphyrin . Heme yog tau los ntawm kev ntxiv ib qho atom ntawm ferrous hlau rau Cov tshuaj protoporphyrin.