Anti-Caspase-3 (p17) /CASP3 Antibody Picoband® Fluoro647 Conjugated

Caspase 3 is a caspase protein which interacts with Survivin, XIAP, CFLAR, Caspase 8, HCLS1, Deleted in Colorectal Cancer, TRAF3 and GroEL. This gene which is located on 4q35 encodes a protein that is a member of the cysteine-aspartic acid protease (caspase) family. Sequential activation of caspases plays a central role in the execution-phase of cell apoptosis. Caspases exist as inactive proenzymes that undergo proteolytic processing at conserved aspartic residues to produce two subunits, large and small, that dimerize to form the active enzyme. It is the predominant caspase involved in the cleavage of amyloid-beta 4A precursor protein, which is associated with neuronal death in Alzheimer's disease. And the caspase-3 activation in heart failure sequentially cleaves SRF and generates a truncated SRF that appears to function as a dominant-negative transcription factor. Additionally, the caspase-3 influence on bone mineral absorbance should be considered in any in vivo application of caspase-3 inhibitors to the treatment of human disease. In erythroid precursors undergoing terminal differentiation, Hsp70 prevents active CASP3 from cleaving GATA1 and inducing apoptosis.

A synthetic peptide corresponding to a sequence in the middle region of human Caspase-3 (p17) /CASP3, which shares 78.3% and 87% amino acid (aa) sequence identity with mouse and rat CASP3.

Apoptosis, Cancer, Cell Biology, Epigenetics and Nuclear Signaling, Intracellular, Kinases, Nuclear Signaling Pathways, Oncoproteins, Oncoproteins/Suppressors, Protein Phosphorylation, Signal Transduction, Tyrosine Kinases

Essential component of a MLL/SET1 histone methyltransferase (HMT) complex, a complex that specifically methylates 'Lys-4' of histone H3 (H3K4) . Functions as a transcriptional regulator. Binds to the TERT promoter and represses telomerase expression. Plays a role in TGFB1-mediated inhibition of cell-proliferation, possibly regulating SMAD3 transcriptional activity. Represses JUND-mediated transcriptional activation on AP1 sites, as well as that mediated by NFKB subunit RELA. Positively regulates HOXC8 and HOXC6 gene expression. May be involved in normal hematopoiesis through the activation of HOXA9 expression (By similarity) . May be involved in DNA repair.

1. Chang, J.; Wei, L.; Otani, T.; Youker, K. A.; Entman, M. L.; Schwartz, R. J. : Inhibitory cardiac transcription factor, SRF-N, is generated by caspase 3 cleavage in human heart failure and attenuated by ventricular unloading. Circulation 108: 407-413, 2003. 2. Miura, M.; Chen, X.-D.; Allen, M. R.; Bi, Y.; Gronthos, S.; Seo, B.-M.; Lakhani, S.; Flavell, R. A.; Feng, X.-H.; Robey, P. G.; Young, M.; Shi, S. : A crucial role of caspase-3 in osteogenic differentiation of bone marrow stromal stem cells. J. Clin. Invest. 114: 1704-1713, 2004. 3. Ribeil, J.-A.; Zermati, Y.; Vandekerckhove, J.; Cathelin, S.; Kersual, J.; Dussiot, M.; Coulon, S.; Moura, I. C.; Zeuner, A.; Kirkegaard-Sorensen, T.; Varet, B.; Solary, E.; Garrido, C.; Hermine, O. : Hsp70 regulates erythropoiesis by preventing caspase-3-mediated cleavage of GATA-1. Nature 445: 102-105, 2007.