APAF1 (Apoptotic Protease-activating Factor 1, APAF-1, KIAA0413)

Apoptotic peptidase activating factor 1, also known as APAF1, is a protein which in humans is encoded by the APAF1 gene. This gene is mapped to chromosome 12q23. It encodes a cytoplasmic protein that initiates apoptosis. And it is an essential downstream effector of p53-mediated apoptosis. This protein contains several copies of the WD40 repeat domain, a caspase recruitment domain (CARD), and an ATPase domain (NB-ARC). In the presence of cytochrome c and dATP, APAF1 assembles into an oligomeric apoptosome, which is responsible for activation of procaspase-9 and maintenance of the enzymatic activity of processed caspase-9. Furthermore, APAF1 is inactivated in metastatic melanomas, leading to defects in the execution of apoptotic cell death. Additionally, APAF1 has been shown to interact with NLRP1,5 Caspase-9,5, 6, 7, 8, 9, 10 APIP,6 BCL2-like 18, 9 and HSPA4.\n\nApplications: \nSuitable for use in Western Blot and Immunohistochemistry. Other applications not tested.\n\nRecommended Dilution:\nWestern Blot: 1ug/ml \nImmunohistochemistry (paraffin): 2ug/ml \nOptimal dilutions to be determined by the researcher.\n\nStorage and Stability:\nLyophilized powder may be stored at -20 degrees C. Stable for 12 months at -20 degrees C. Reconstitute with sterile ddH2O. Aliquot to avoid repeated freezing and thawing. Store at -20 degrees C. Reconstituted product is stable for 12 months at -20 degrees C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.

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SPECIFICATIONS

Catalog Number

A2298-64U1

Size

100ug

Applications

IHC, WB

Hosts

Rabbit

Reactivities

Hum, Mouse, Rat

Form

Supplied as a lyophilized powder from PBS, pH 7.4, 5% BSA, 0.05% thimerosal, 0.05% sodium azide. Reconstitute with sterile dH2O.

P Type

Pab

Purity

Purified by immunoaffinity chromatography.

Isotype

IgG

References

1. Kim, H.; Jung, Y. K.; Kwon, Y. K.; Park, S. H. : Assignment of apoptotic protease activating factor-1 gene (APAF1) to human chromosome band 12q23 by fluorescence in situ hybridization. Cytogenet. Cell Genet. 87:252-253, 1999. 2. Robles, A. I.; Bemmels, N. A.; Foraker, A. B.; Harris, C. C. : APAF-1 is a transcriptional target of p53 in DNA damage-induced apoptosis. Cancer Res. 61:6660-6664, 2001. 3. Bao, Q.; Lu, W.; Rabinowitz, J. D.; Shi, Y. : Calcium blocks formation of apoptosome by preventing nucleotide exchange in Apaf-1. Molec. Cell 25:181-192, 2007. 4. Soengas, M. S.; Capodieci, P.; Polsky, D.; Mora, J.; Esteller, M.; Opitz-Araya, X.; McCombie, R.; Herman, J. G.; Gerald, W. L.; Lazebnik, Y. A.; Cordon-Cardo, C.; Lowe, S. W. : Inactivation of the apoptosis effector Apaf-1 in malignant melanoma. Nature 409:207-211, 2001. 5. Chu, Z L; Pio F, Xie Z, Welsh K, Krajewska M, Krajewski S, Godzik A, Reed J C (Mar. 2001). \"A novel enhancer of the Apaf1 apoptosome involved in cytochrome c-dependent caspase activation and apoptosis\". J. Biol. Chem. (United States) 276(12):9239-45. 6. Cho, Dong-Hyung; Hong Yeon-Mi, Lee Ho-June, Woo Ha-Na, Pyo Jong-Ok, Mak Tak W, Jung Yong-Keun (Sep. 2004). \"Induced inhibition of ischemic/hypoxic injury by APIP, a novel Apaf-1-interacting protein\". J. Biol. Chem. (United States) 279(38):39942-50. 7. Li, P; Nijhawan D, Budihardjo I, Srinivasula S M, Ahmad M, Alnemri E S, Wang X (Nov. 1997). \"Cytochrome c and dATP-dependent formation of Apaf-1/caspase-9 complex initiates an apoptotic protease cascade\". Cell (UNITED STATES) 91(4):479-89. 8. Hu, Y; Benedict M A, Wu D, Inohara N, N

Additional Info

Recognizes human APAF1. Species Crossreactivity: mouse, rat.