Additional file 3 of Genome-wide survey of the bHLH super gene family in Brassica napus KeYun-Zhuo WuYun-Wen ZhouHong-Jun ChenPing WangMang-Mang LiuMing-Ming LiPeng-Feng YangJin LiJia-Na DuHai 2020 Additional file 3: Table S3. Amino acid composition of the bHLH domain across different species.