3s3nSWISS-MODEL Template Library (SMTL) entry for 3s3n.1. Crystal structure of the Prototype Foamy Virus (PFV) S217H mutant intasome in complex with magnesium and Dolutegravir3s3n: crystal structure of the prototype foamy virus (pfv) s217h mutant intasome in complex with magnesium and dolutegravir (sgsk1349572)