Hello every1

              Its my first time posting and I hope its in the right section. I am doing homology modeling with DS 2.5 and its quite interesting. Right now I am following homology modeling tutorial. In one of the step, I have to choose uniref90 database for BLAST ( DS Server) but this database isnt present. Can anybody please tell me how to get it or install? Also, I updated DS to 2.5.5. and after that although DS seems to be running OK but NCBI blast is giving error.