| Tissue Specificity | Expressed in the kidney thick ascending limb (at protein level). Expressed in neurons and motor neurons (at protein level). Expressed in platelets. |
| Post Translational Modifications | Acetylation at Lys-125 markedly inhibits catalysis of cis to trans isomerization. PPIA acetylation also antagonizes the immunosuppressive effects of cyclosporine by inhibiting the sequential steps of cyclosporine binding and calcineurin inhibition. Acetylation at Lys-125 favors the interaction with TARDBP. |
| Function | Catalyzes the cis-trans isomerization of proline imidic peptide bonds in oligopeptides. Exerts a strong chemotactic effect on leukocytes partly through activation of one of its membrane receptors BSG/CD147, initiating a signaling cascade that culminates in MAPK/ERK activation. Activates endothelial cells (ECs) in a pro-inflammatory manner by stimulating activation of NF-kappa-B and ERK, JNK and p38 MAP-kinases and by inducing expression of adhesion molecules including SELE and VCAM1. Induces apoptosis in ECs by promoting the FOXO1-dependent expression of CCL2 and BCL2L11 which are involved in EC chemotaxis and apoptosis. In response to oxidative stress, initiates proapoptotic and antiapoptotic signaling in ECs via activation of NF-kappa-B and AKT1 and up-regulation of antiapoptotic protein BCL2. Negatively regulates MAP3K5/ASK1 kinase activity, autophosphorylation and oxidative stress-induced apoptosis mediated by MAP3K5/ASK1. Necessary for the assembly of TARDBP in heterogeneous nuclear ribonucleoprotein (hnRNP) complexes and regulates TARDBP binding to RNA UG repeats and TARDBP-dependent expression of HDAC6, ATG7 and VCP which are involved in clearance of protein aggregates. Plays an important role in platelet activation and aggregation. Regulates calcium mobilization and integrin ITGA2B:ITGB3 bidirectional signaling via increased ROS production as well as by facilitating the interaction between integrin and the cell cytoskeleton. Binds heparan sulfate glycosaminoglycans. |
| Protein Name | Peptidyl-Prolyl Cis-Trans Isomerase APpiase ACyclophilin ACyclosporin A-Binding ProteinRotamase ASp18 Cleaved Into - Peptidyl-Prolyl Cis-Trans Isomerase A - N-Terminally Processed |
| Database Links | Reactome: R-MMU-210991Reactome: -MMU-6798695 |
| Cellular Localisation | CytoplasmSecretedNucleusSecretion Occurs In Response To Oxidative Stress In Vascular Smooth Muscle Through A Vesicular Secretory Pathway That Involves Actin Remodeling And Myosin Ii ActivationAnd Mediates Erk1/2 Activation |
| Alternative Protein Names | Peptidyl-Prolyl Cis-Trans Isomerase A proteinPpiase A proteinCyclophilin A proteinCyclosporin A-Binding Protein proteinRotamase A proteinSp18 Cleaved Into - Peptidyl-Prolyl Cis-Trans Isomerase A - N-Terminally Processed proteinPpia protein |
Information sourced from Uniprot.org
