This package provides a Go implementation of Kalev and Habeck's HHfrag algorithm from their 2011 paper in Bioinformatics. Notably, this implementation uses hhsuite 2.0 with either hhsearch or hhblits from Johann Soeding in lieu of the older hhsuite 1.5/1.6 version (which requires PSI-BLAST).

http://godoc.org/github.com/TuftsBCB/hhfrag

Once you have Go installed, just run

go get github.com/TuftsBCB/hhfrag

to install the package.