Context dependent mutation biases in the human genome

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Tezin Türü: Yüksek Lisans

Tezin Yürütüldüğü Kurum: Orta Doğu Teknik Üniversitesi, Fen Edebiyat Fakültesi, Biyolojik Bilimler Bölümü, Türkiye

Tezin Onay Tarihi: 2017

Öğrenci: AHMET YETKİN ALICI

Danışman: MEHMET SOMEL

Özet:

Different types of mutations occur and spread in the genome at varying rates. For instance, C->T transitions at CpG sites are the most frequent mutation in mammalian genomes. In contrast, GC-biased gene conversion causes A or T->G or C mutations to spread and fix rapidly in populations. Such fixation biases have not yet been investigated taking neighbouring sequence context into account. Using human population genomic data from the 1000 Genomes Project and comparative genomic data from other primates, possible fixation biases in the human genome at the level of quintuplets (5 bp sequences where the middle base is mutated) will be investigated.