Cyclophilin A (CyPA, 18 kDa) is a ubiquitously distributed protein belonging to the immunophilin family. Cyclophilin A (CyPA) is a peptidyl-prolyl cis-trans isomerase that exists in the intracellular and secretory forms and has multiple functions. Intracellular CypA takes part in folding, transport, and assembly of proteins; regulates cell proliferation; is a ligand for cyclosporine A (CsA), mediating its immune-suppressive activity; mediates signal transduction from a T cell receptor, and controls the balance of T helpers 1 and 2, inhibiting activity of T helpers 2. Product Information Product Information. Catalog Number Size Recombinant Human Cyclophilin A Protein, GST Tag 96600ES25 25 μg 96600ES60 100 μg 96600ES76 500 μg Product Properties Synonyms Peptidyl-prolyl cis-trans isomerase A,PPIase A,Cyclosporin A-binding protein,Rotamase A Species Human Expression Sequence Met1-Glu165,with GST Tag at the N-terminal Accession P62937 Tag N-GST Tag Expression System E.coli Molecular Weight 43.5 kDa Endotoxin