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Brain Res Mol Brain Res. 1998 Aug 15;59(1):90-2.

Polymorphic imprinting of the serotonin-2A (5-HT2A) receptor gene in human adult brain.

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Institute of Human Genetics, University of Bonn, Wilhelmstr. 31, D-53111, Bonn, Germany.


We have examined the imprinting status of the serotonin-2A (5-HT2A) receptor gene (HTR2A) in a series of 41 tissue samples from human adult brain. Using a HpaII RFLP polymorphism in the coding region, we obtained evidence of monoallelic expression of HTR2A in 4 out of 18 informative individuals. However, biallelic expression of HTR2A was observed in other individuals (14/18), suggesting that within the human population HTR2A imprinting in brain is polymorphic.

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