格式数据库
https://genome.ucsc.edu/FAQ/FAQformat.html#format1
bam文件：https://samtools.github.io/hts-specs/SAMv1.pdf
bam文件：https://genome.sph.umich.edu/wiki/SAM
查看sam flag：https://broadinstitute.github.io/picard/explain-flags.html
tissue-specific TF motif binding site
funMotifs: Tissue-specific transcription factor motifs
http://bioinf.icm.uu.se:3838/funmotifs/
Tissue-specific Gene Expression and Regulation
TF interaction
http://bioinfo.wilmer.jhu.edu/tiger/
mouse tissue-specific information
scientific reports
mTFkb: a knowledgebase for fundamental annotation of mouse transcription factors
https://sunlab.cpy.cuhk.edu.hk/mTFkb/download.php