Examining the effects of excess nitrogen on glutamine deamidation, transamination: A review
You can get excess nitrogen as free N from glutamine deamidation by glutaminase, aspartate transamination reaction between glutamate oxaloacetate and glutamine. The key step of the nitrogen cycle is glutamine deamidation, which converts glutamine to ammonia and glutamate. Transamination occurs when the glutamine amino group is converted to oxaloacetate. This forms aspartate, and?-ketoglutarate. The cell releases excess nitrogen through this reaction (Yang and al., 2002). You can also collect excess nitrogen in the form ammonium-ions (NH4+). Mizushina and colleagues, 2020. Also, NH4+ is also produced by transaminations of glutamate or oxaloacetate (Liu and al., 2016). Excess nitrogen is possible to be obtained as free NH4+ by deamidation glutamine via glutaminase or aspartate via the transamination reaction of glutamate with oxaloacetate. Cont…..
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