APIP (Probable Methylthioribulose-1-phosphate Dehydratase, MTRu-1-P Dehydratase, APAF1-interacting Protein, CGI-29)

The mammalian homologues of the key cell death gene CED-4 in C. elegans has been identified recently from human and mouse and designated Apaf1 (for apoptosis protease-activating factor 1) (1,2). Apaf1 binds to cytochrome c (Apaf2) and caspase-9 (Apaf3), which leads to caspase-9 activation. Activated caspase-9 in turn cleaves and activates caspase-3 that is one of the key proteases, being responsible for the proteolytic cleavage of many key proteins in apoptosis (3). Recently, Cho et al (4) have identified a new Apaf-1 Interactiong Protein (APIP) also known as CG129 and MMRP19, as a negative regulator of ischemic injury. APIP competes with Caspase-9 binding site of Apaf1. APIP is predicted to code for a 204aa. An isoform of APIP, APIP2 encodes a 242aa protein, which is an alternative splicing variant differing in its N-terminus from APIP. APIP transcript is ubiquitously expressed in most adult tissue with high expression in skeletal muscle, heart, and kidney.\n\nApplications:\nSuitable for use in Western Blot. Other applications not tested.\n\nRecommended Dilution:\nWestern Blot: 1-2ug/ml\nOptimal dilutions to be determined by the researcher.\n\nPositive Control:\nHuman muscle\n\nStorage and Stability:\nMay be stored at 4 degrees C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20 degrees C. Aliquots are stable for at least 12 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.

Prices direct from United States Biological

Quick response times

Exclusive Biosave savings/discounts

SPECIFICATIONS

Catalog Number

A2298-79L

Size

100ug

Applications

WB

Hosts

Rabbit

Reactivities

Hum

Form

Supplied as a liquid in PBS, 0.2% gelatin, 0.05% sodium azide.

P Type

Pab

Purity

Purified by Protein G affinity chromatography.

Isotype

IgG

References

1. Cecconi F, Alvarez-Bolado G, Meyer BI, Roth KA, Gruss P. Apaf1 (CED-4 homolog) regulates programmed cell death in mammalian development. Cell 1998; 94:727-37 2. Zou H, Henzel WJ, Liu X, Lutschg A, Wang X. Apaf-1, a human protein homologous to C. elegans CED-4, participates in cytochrome c-dependent activation of caspase-3. Cell 1997; 90:405-13 3. Li P, Nijhawan D, Budihardjo I, Srinivasula SM, Ahmad M, Alnemri ES, Wang X. Cytochrome c and dATP-dependent formation ofApaf-1/caspase-9 complex initiates an apoptotic protease cascade. Cell 1997; 91:479-89 4. Cho D-H, Hong Y-M, Lee H-J, Woo H-N, Pyo J-O, Mak TW, Jung Y-K. Induced Inhibition of Ischemic/Hypoxic Injury by APIP, a Novel Apaf-1-interacting protein. J Biol Chem, published on July 15, 2004 as Manuscript M405747200.

Additional Info

Recognizes human APIP.