Lead poisoning has also been shown to denature enzymes important in heme synthesis, like Delta aminolevulinate dehydratase and ferrochelatase, which are important for heme synthesis.
铅中毒同样也被证明会使血红素合成中重要的酶变性，如Delta-氨基乙酰丙酸脱水酶与亚铁螯合酶这一类对血红素合成至关重要的酶。
Aminolevulinate
原声例句
Osmosis-血液肿瘤
英语百科
Aminolevulinic acid
![](/Images/godic/202412/20/Aminolevulinic_acid.svg3623.png")
δ-Aminolevulinic acid (dALA or δ-ALA or 5ala or 5-aminolevulinic acid ) is the first compound in the porphyrin synthesis pathway, the pathway that leads to heme in mammals and chlorophyll in plants.
In plants, production of δ-ALA is the step on which the speed of synthesis of chlorophyll is regulated. Plants that are fed by external δ-ALA accumulate toxic amounts of chlorophyll precursor, protochlorophyllide, indicating that the synthesis of this intermediate is not suppressed anywhere downwards in the chain of reaction. Protochlorophyllide is a strong photosensitizer in plants.
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