Protein Information

Name cytochrome c
Synonyms CYC; CYCS; Cytochrome C; HCS; Cytochrome Cs

Compound Information

Name 4-aminopyridine
CAS 4-pyridinamine

Reference List

PubMed Abstract RScore(About this table)
16020659 Grishin A, Ford H, Wang J, Li H, Salvador-Recatala V, Levitan ES, Zaks-Makhina E: Attenuation of apoptosis in enterocytes by blockade of potassium channels. Am J Physiol Gastrointest Liver Physiol. 2005 Nov;289(5):G815-21. Epub 2005 Jul 14.

Blockade of K+ efflux with tetraethylammonium, 4-aminopyridine, stromatoxin, chromanol 293B, and the recently described K+ channel inhibitor 48F10 prevents DNA fragmentation, caspase activation, release of cytochrome c from mitochondria, and loss of mitochondrial membrane potential.
31(0,1,1,1) Details
20164347 Leveille F, Papadia S, Fricker M, Bell KF, Soriano FX, Martel MA, Puddifoot C, Habel M, Wyllie DJ, Ikonomidou C, Tolkovsky AM, Hardingham GE: Suppression of the intrinsic apoptosis pathway by synaptic activity. J Neurosci. 2010 Feb 17;30(7):2623-35.


Puma expression is sufficient to induce cytochrome c loss and neuronal apoptosis.
2(0,0,0,2) Details
11557592 Krick S, Platoshyn O, McDaniel SS, Rubin LJ, Yuan JX: Augmented K (+) currents and mitochondrial membrane depolarization in pulmonary artery myocyte apoptosis. Am J Physiol Lung Cell Mol Physiol. 2001 Oct;281(4):L887-94.

The mitochondrial membrane depolarization would cause cytochrome c release, activate the cytosolic caspases, and induce apoptosis.
Blockade of K (V) channels with 4-aminopyridine diminished I (K (V)) and markedly decreased the ST-mediated apoptosis.
1(0,0,0,1) Details
16806301 Hu CL, Liu Z, Zeng XM, Liu ZQ, Chen XH, Zhang ZH, Mei YA: 4-aminopyridine, a Kv channel antagonist, prevents apoptosis of rat cerebellar granule neurons. Neuropharmacology. 2006 Sep;51(4):737-46. Epub 2006 Jun 27.

Furthermore, 4-AP significantly inhibited cytochrome c release and caspase-3 activity induced by low-K+/serum-free incubation.
1(0,0,0,1) Details