****************************************************************** This directory, pir_databases/psd/fasta, contains the current bi-weekly update of the PIR-International Protein Sequence Database, as well as the quarterly releases in their corresponding sub-directories. The files are compressed in xml format. All the sequences in the PIR1, PIR2, PIR3, and PIR4 sections of the database have been combined into one file psd.xml.gz. The database release information is also included. Upto the three most recent releases will be retained. ******************************************************************