Protein Name:
Peptidyl-prolyl cis-trans isomerase F, mitochondrial
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UniprotKB/SwissProt ID: Q99KR7 (Q99KR7)
Gene Name:
Ppif
Organism: Mus musculus (Mouse)
Function: PPIase that catalyzes the cis-trans isomerization of proline imidic peptide bonds in oligopeptides and may therefore assist protein folding (By similarity). Involved in regulation of the mitochondrial permeability transition pore (mPTP) (PubMed:15800626, PubMed:15800627, PubMed:16103352, PubMed:18684715, PubMed:31489369). It is proposed that its association with the mPTP is masking a binding site for inhibiting inorganic phosphate (Pi) and promotes the open probability of the mPTP leading to apoptosis or necrosis; the requirement of the PPIase activity for this function is debated (PubMed:15800626, PubMed:15800627, PubMed:16103352, PubMed:18684715, PubMed:31489369). In cooperation with mitochondrial p53/TP53 is involved in activating oxidative stress-induced necrosis (PubMed:22726440). Involved in modulation of mitochondrial membrane F(1)F(0) ATP synthase activity and regulation of mitochondrial matrix adenine nucleotide levels (PubMed:19801635, PubMed:21281446). Has anti-apoptotic activity independently of mPTP and in cooperation with BCL2 inhibits cytochrome c-dependent apoptosis (By similarity)
Other Modifications: View all modification sites in dbPTM
Protein Subcellular Localization: Mitochondrion matrix
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Graphical Visualization of S-nitrosylation Sites:
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The S-nitrosylation sites of Q99KR7
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| No. |
Position |
S-nitrosylated Peptide |
Secondary Structure of S-nitrosylated Peptide |
Solvent Accessibility of nitrosylated Site |
PubMed ID |
| 1 |
103 |
TFHRVIPAFM C QAGDFTNHNG |
CCCCCCCHHH H HHHCCCCCCC |
1.71% |
21278135
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| 2 |
156 |
PNTNGSQFFI C TIKTDWLDGK |
CCCCCCCHHH H HHHCCCCCCC |
2.45% |
21278135
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| 3 |
202 |
KTSKKIVITD C GQLS------ |
CCCCCCCHHH H HHHCCCCCCC |
2.54% |
21930693
21278135
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