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Expression of PNR, CRX, NRL, and RARα in human cell lines. RT-PCR analysis of total RNA isolated from various human cell lines. Y79, retinoblastoma; SK-N-MC and IMR-32, neuroblastoma; A-172, glioblastoma; NT2/D1, embryonic carcinoma; HeLa, cervical carcinoma; HEK-293, adenovirus-transformed embryonic kidney fibroblast; and MCF7, mammary tumor.
