BSI is proud to announce the release of RAPTOR 4.1 for Linux and Windows, the latest edition of protein threading software. RAPTOR is an innovative software tool designed to predict protein structure from protein sequence. Armed with unique integer programming algorithm, RAPTOR is capable of discovering remote structural homology for hard sequences and giving high quality prediction. As a participant in recent CASP’s, RAPTOR has been consistently ranked in the top tier. In addition to the three threading methods proprietary to RAPTOR, the new version integrates PSI-BLAST for rapid identification of easy targets. A built in pipeline in RAPTOR 4.1 allows users to automatically run more rigorous threading techniques if necessary. RAPTOR 4.1 is your protein structure pipeline, right out of the box.