Such an assay does not preclude the direct exchange of serine and glycerol phosphate.
这样一个试验并不杜绝丝氨酸同磷酸甘油的直接交换。
2
It may be synthesized directly from ammonia carbon dioxide and a donated methyl group; derived from serine; or derived from glycerate 3-phosphate by transamination of glyoxylate.
甘氨酸来源于丝氨酸，或由乙醛酸经转氨作用生成的甘油3 -磷酸转化而成。
3
Serine an amino acid synthesized from glycerate 3-phosphate.