Tumor necrosis factor alpha (TNF-alpha)-mediated death signaling causes the recruitment of monomeric pro- apoptotic Bax into a 500-kDa protein complex. The adenovirus Bcl-2 homologue, E1B 19K, inhibits TNF-alpha-mediated apoptosis, interacts with Bax, and blocked the formation of the 500-kDa Bax complex. TNF-alpha and truncated Bid induced Bax-Bax cross-linking, indicative of oligomerization, a...

Bax is cleaved by calpain at aspartate 33 (Asp33) to yield p18 Bax during stress-induced apoptosis. To assess the role of p18 Bax in apoptosis, an ecdysone-inducible expression system was generated. Similar levels of wild-type (WT) and noncleavable Asp33Ala (Asp-->Ala) Bax are induced in 293 cells while expression of N-terminal-deleted p18 (Delta1-33) Bax remains low (20% of full-length p21 Bax...

background: bcl-2 is the most important anti-apoptotic regulator and bax is a pro-apoptotic protein. the status of these parameters or the ration of bcl-2 to bax is important in malignant cell fate as well as normal cells. methods: sixty-two all patients and 62 healthy sex-and age-matched controls were studied. after genotyping, the promoter region of the bax and bcl-2 genes by rflp-pcr method ...

p19(ARF) is a key regulator of the p53-mediated apoptotic and tumor suppressor pathway. The proapoptotic Bax gene is a transcription target of p53, yet genetic studies in some animal models have suggested that Bax and p53 loss may cooperate in tumorigenesis. ARF-deficient mice are tumor prone, and to determine whether Bax loss could cooperate in the development of these tumors, we generated mic...

The pro-apoptotic protein Bax commits a cell to death by permeabilizing the mitochondrial outer membrane (MOM). To obtain small-molecule probes for elucidating the molecular mechanism(s) of Bax activation, we screened for compounds that induced Bax-mediated liposome permeabilization. We identified five structurally different small molecules that promoted both Bax targeting to and oligomerizatio...

Bax is a Bcl-2 family member that promotes apoptosis and counters the protective effect of Bcl-2. Bax is a downstream effector of p53-induced apoptosis and is transcriptionally regulated by p53. Moreover, the introduction of Bax deficiency accelerates the onset of tumors in transgenic mice expressing truncated large T antigen. These results implicate Bax as a tumor suppressor. Consequently, we ...

Breast cancer is the most common type of amongst women. Apoptosis known as a programmed cell death and this mechanism induces death. Dihydropyrrole compounds contain heterocyclic structure these molecules have many biological effects including functioning antioxidants anticancer molecules. In regard, aim research was to investigate how PhTAD-substituted dihydropyrrole affect expression apoptoti...

Expression of the proapoptotic protein Bax under the control of a GAL10 promoter in Saccharomyces cerevisiae resulted in galactose-inducible cell death. Immunofluorescence studies suggested that Bax is principally associated with mitochondria in yeast cells. Removal of the carboxyl-terminal transmembrane (TM) domain from Bax [creating Bax (deltaTM)] prevented targeting to mitochondrial and comp...

Bax, a member of the Bcl-2 protein family, accelerates apoptosis by an unknown mechanism. Bax has been recently reported to be an integral membrane protein associated with organelles or bound to organelles by Bcl-2 or a soluble protein found in the cytosol. To explore Bcl-2 family member localization in living cells, the green fluorescent protein (GFP) was fused to the NH2 termini of Bax, Bcl-2...