Profile cover photo
Profile photo
Xianjun Dong
About
Posts

Post has attachment
About snRNAs and snoRNAs
Some quick survey about snRNAs and snoRNAs: - snRNA small nuclear RNAs, ~150nt,  also called uRNA (due to rich of uridylic residues), functions in RNA splicing There are 1916 snRNAs in the human genome. Their length distribution as below:  20  1  40 * 20  6...
Add a comment...

Post has attachment
Download all KEGG pathway KGML files for SPIA analysis
# Note to download all KEGG pathway KGML files and install in SPIA # change folder to the folder where your SPIA installed cd /Library/Frameworks/R.framework/Versions/3.4/Resources/library/SPIA # download all XML files for all human pathway # Claim: this is...
Add a comment...

Post has attachment
Add a comment...

Post has attachment
try to be consistent
Worthy to note the lesson I learned today: try to be consistent when sorting with different chromosome order. I got the same error message as the post: https://github.com/arq5x/bedtools/issues/109 In short, the chromosome order in my sorted BAM file header ...
Add a comment...

Post has attachment
Educational papers in Bioinformatics from Nature Methods and Nature Biotechnology
Nature Methods and Nature Biotechnology have this super-great monthly column in bioinformatics for years. For example, Nature Methods has both the "Points of Significance" covering topics in statistics and "Points of View" in data visualization. And Nature ...
Add a comment...

Post has attachment
Kingdoms and domains of life
Notes of revisiting the topic: Linnaeus originally placed all living things into either plant or animal kingdom, and nowaday we place living things (e.g. not virus) into six ( Animalia  动物界, Plantae  植物界, Fungi  真菌界, Protista  原生生物界, Archaea / Archaeabacter...
Add a comment...

Post has attachment
Simple note for github vs. Rstudio
Having used both Rstudio and GitHub for a while, but never thought to combine them together. Hadley Wickham already put a detailed instruction on how to link GitHub with Rstudio ( http://r-pkgs.had.co.nz/git.html ). I just list few quick note from my own ex...
Add a comment...

Post has attachment

Post has attachment
remove and disable .DS_Store in mounted disk
Do you see this when you want to extend your path by typing the TAB key? What are those .DS_Store files? They are generated by MacOS (see [1] for detail). Because I mount my remote disk via SMB, MacOS Finder will generate such a configure file whenever you ...
Add a comment...

Post has attachment
IBS vs. IBD
Regarding your question what's IBD and IBS, here is my understanding: A SNP (or a segment of DNA) is identical by state (IBS) if they have the same alleles in two of more individuals. For example, if person A has genotype A/C at a SNP position while person ...
IBS vs. IBD
IBS vs. IBD
onetipperday.sterding.com
Add a comment...
Wait while more posts are being loaded