核糖磷酸基是各种辅的成分，微生物靠它来合成组氨酸。
Ribose phosphates are components of various coenzymes and are used by microorganisms in synthesizing histidine.
组氨酸是生物体蛋白质合成的必需氨基酸，其生物合成途径已得到广泛的鉴定。
Histidine is one of the essential amino acids for protein synthesis and is required by all living organisms. Its biosynthetic pathway has been extensively characterized.
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