Utilize Zephyr™ Performance Systems to suit your needs. The tools and information you need to enhance Zephyr™ Performance Systems are right here. Whether you want to focus on consumers or professional users, you’ll find APIs, SDKs, scripts, spreadsheets, and more. SDKs can be purchased and downloaded, but to obtain other tools, please. Datasets. We created all datasets with UniProt release 2010_05. This release has 516,503 sequence entries in Swiss-Prot and 10,706,472 sequence entries in TrEMBL to make a total of 11,222,975. We also used the May 2010 snapshot of the PDB, excluding theoretical models and C α only structures.