側翼區(flanking region)
根據維基定義：The 5' flanking region is a region of DNA that is adjacent to the 5' end of the gene. The 5' flanking region contains the promoter, and may contain enhancers or other protein binding sites. It is the region of DNA that is not transcribed into RNA.
以5'側翼區為例，側翼區是指與基因5’末端毗連的DNA區域，這些區域通常包含啟動子、增強子或者其他蛋白質結合位點，這部分的區域不能被轉錄為RNA。
側翼區單核苷酸多態性(Flanking SNPs)
根據維基定義：Flanking SNPs are Single nucleotide polymorphisms (SNP) that appear in the flanking region. Polymorphisms in this region can lead to changes in the regulation of transcription.
是指出現在側翼區的SNP,在這個區域的SNP可能導致轉錄調控發生改變。