Rgs2^tm1Dgen

将细菌的lacZ基因插入，使其由内源性基因驱动β-半乳糖苷酶的表达。RT-PCR分析显示所有研究组织中都检测到了基因转录，而这个等位基因在大脑、心脏、肾脏、喉、垂体、唾液腺和男性生殖系统中能检测到β-半乳糖苷酶的表达。 (Source: The lacZ gene from a bacterial strain was inserted with its endogenous promoter driving expression of beta-galactosidase. RT-PCR revealed gene transcript presence in all tissues examined, while expression from this allele was detected in brain, heart, kidney, larynx, pituitary, salivary gland, and male reproductive system.)