CATH Classification

Domain Context

CATH Clusters

Superfamily Cyclophilin-like
Functional Family Peptidyl-prolyl cis-trans isomerase E

Enzyme Information

5.2.1.8
Peptidylprolyl isomerase.
based on mapping to UniProt P62937
Peptidylproline (omega=180) = peptidylproline (omega=0).
-!- The first type of this enzyme found proved to be the protein cyclophilin, which binds the immunosuppressant cyclosporin A. -!- Other distinct families of the enzyme exist, one being FK-506 binding proteins (FKBP) and another that includes parvulin from Escherichia coli. -!- The three families are structurally unrelated and can be distinguished by being inhibited by cyclosporin A, FK-506 and 5-hydroxy-1,4-naphthoquinone, respectively.

UniProtKB Entries (2)

P62937
PPIA_HUMAN
Homo sapiens
Peptidyl-prolyl cis-trans isomerase A
Q72497
Q72497_9HIV1
Human immunodeficiency virus 1
Gag polyprotein

PDB Structure

PDB 1M9X
External Links
Method X-RAY DIFFRACTION
Organism Escherichia
Primary Citation
Structural insights into the catalytic mechanism of cyclophilin A
Howard, B.R., Vajdos, F.F., Li, S., Sundquist, W.I., Hill, C.P.
Nat.Struct.Biol.