OR4Q3,即olfactory receptor family 4 subfamily Q member 3,是位于4号染色体上的基因,属于嗅觉受体基因家族的一部分。嗅觉受体基因家族在人类基因组中占据了大约1%的比例,是基因家族中最大的一个。这些基因编码的蛋白质主要在鼻腔的嗅觉上皮细胞中表达,并负责识别和传递嗅觉信号。嗅觉受体基因的表达受到严格的调控,以确保嗅觉系统的正常功能。
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