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The serotonin transporter gene (5-HTT) is considered as a candidate gene for BPD as multiple lines of evidence have suggested that it plays an important role in suicide, impulsive behaviour, and emotional liability.ompared with healthy controls, patients with BPD showed higher frequencies of the 10 repeat of the VNTR marker and the S-10 haplotype, and fewer 12 repeat and L A -12 haplotype. These results suggest that the serotonin transporter gene may play a role in the aetiology of BPD.
Gene expression is governed by complex mechanisms including transcription factor binding to DNA and coordinated changes in chromatin structure. The primary protein components of chromatin are the histones, which are assembled along with DNA into larger complexes known as nucleosomes.odifications of histone proteins constitute an important mechanism of gene regulation. Histone modifications are an early indicator of epigenetic regulation, and one way to study this phenomenon is via chromatin immunoprecipitation (ChIP).