Cyclophilin A (also known as Peptidylprolyl isomerase A, PPIA) encodes a member of the peptidyl-prolyl cis-trans isomerase family. They are highly-conserved cytoplasmic enzymes that accelerate protein folding. Cyclophilin A is also incorporated into many viruses, including HIV-1, where it has been speculated to be involved in functions such as viral assembly and infectivity. Recombinant human PPIA, was expressed in E.coli and purified by using conventional chromatography techniques. Synonyms: Peptidylprolyl isomerase A, CYPA, CYPH, MGC12404, MGC23397, MGC117158, Cyclophilin A, Cyclosporin A binding protein, Peptidyl prolyl cis trans isomerase A, PPIA, PPIA protein, PPIase A, Rotamase A, RotamaseA, T cell cyclophilin. NCBI no.: NP_066953