2frq

<table><tr><td colspan='2'>[[2frq]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2FRQ OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2FRQ FirstGlance]. <br>

</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=C71:N-[4-(AMINOMETHYL)-1,1-DIOXIDOTETRAHYDRO-2H-THIOPYRAN-4-YL]-3-(1-METHYLCYCLOPENTYL)-N~2~-[(1E)-N-(PHENYLSULFONYL)ETHANIMIDOYL]-L-ALANINAMIDE'>C71</scene></td></tr>

<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Cathepsin_S Cathepsin S], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.22.27 3.4.22.27] </span></td></tr>

<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2frq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2frq OCA], [http://pdbe.org/2frq PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2frq RCSB], [http://www.ebi.ac.uk/pdbsum/2frq PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2frq ProSAT]</span></td></tr>

[[http://www.uniprot.org/uniprot/CATS_HUMAN CATS_HUMAN]] Thiol protease. Key protease responsible for the removal of the invariant chain from MHC class II molecules. The bond-specificity of this proteinase is in part similar to the specificities of cathepsin L and cathepsin N.