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 DolutegravirPDB Entry - 3S3N (Status - Released) Summary information: Title: Crystal structure of the Prototype Foamy Virus (PFV) S217H mutant intasome in complex with magnesium