STRIDE - Find Secondary Structural Elements in PDB Proteins Structures at EMBL-Heidelberg
STS Pipeline - Analysis and STS Primer Picking of Short DNA Sequences with Duplicate Checking, Sequence Repeat Finding, Restriction Analysis, Vector Identification and BLAST Searching at MIT
SURVOL - Analysis of Protein Atomic Volumes at UCMB, Belgium
Swiss-2DPage - Two-dimensional Polyacrylamide Gel Electrophoresis Database at ExPASy, Switzerland
SWISSDOM - SwissProt Entries in a ProDom Map at EBI, UK