What is the common work-flow to build an microarray annotation package, like hgu133a.db.
For some array, there are probe sequences available, then maybe mapping is used? While for other situations, how to deal with? If code used by the team available, that will be great. Thank you.
The specific goal is to build new platform annotation packages which are not available now from Bioconductor (what I need is just probe to gene symbols).
It seems Bioconductor update the annotation package when a new version releasing due to the update of gene symbols.
BTW, why name it as hgu133a.db instead of GPL96.db (from GEO) in Bioconductor? And user have to find the mapping relationship between them, though there are some mappings, such as https://gist.github.com/seandavi/bc6b1b82dc65c47510c7#file-platformmap-txt.