APAF 1 ( Apoptotic protease activating factor 1 )
نویسندگان
چکیده
Five isoforms of APAF1 cDNA have been identified in Homo sapiens: The original APAF1 (also called Apaf-1S) is 3585 bp long (it contains 12 WD40 repeats); The APAF1-1M isoform (3618 bp) contains an insertion of 33 nt after position 295 of the first published sequence (11 aa insertion GKDSVSGITSY between aa 98 and 99; it also contains 12 WD40 repeats); The APAF1XS isoform (3516 bp) contains the same insertion of Apaf-1M form, lacks the base pairs from 3171 to 3296 of the Apaf-1S form (the deletion is in WD40 domain) but has an insertion of 24 nt at position 1725 The APAF1L (3714 bp) contains an insertion of 129 nt at position 2466(contains 13 WD40 repeats); The APAF1XL (3747 bp)isoform contains the same insertion of APAF1M form, plus and additional insertion of 129 bp (43 aa beetween aa 811-812; Apaf1XL also contains 13 WD40 repeats).
منابع مشابه
Apoptotic protease-activating factor 1 (Apaf-1) as a liable gene for spontaneous mutations in vitro
The apoptotic protease-activating factor 1 (Apaf-1) receives the death signal in the intrinsic ormitochondrial pathway of apoptosis. Upon the releasing of cytochrome c from theintermembrane space of mitochondria and binding to Apaf-1 molecules, a heptamericapoptosome complex is formed and triggers the downstream cascade of caspases. Here, for thefirst time we present spontaneous mutations and r...
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Inactivation of the retinoblastoma (Rb) tumor suppressor in the mouse induces mid-gestational death accompanied by massive apoptosis in certain tissues. Herein, we analyzed the role of the apoptosis protease-activating factor Apaf-1, an essential component of the apoptosome, in mediating apoptosis in Rb-deficient mice. Analysis of compound mutant embryos lacking Rb and Apaf-1 revealed that Apaf...
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Neuronal apoptosis plays an essential role in early brain development and contributes to secondary neuronal loss after acute brain injury. Recent studies have provided evidence that neuronal susceptibility to apoptosis induced by traumatic or ischemic injury decreases during brain development. However, the molecular mechanisms responsible for this age-dependent phenomenon remain unclear. Here w...
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How Bcl-2 and its pro-survival relatives prevent activation of the caspases that mediate apoptosis is unknown, but they appear to act through the caspase activator apoptosis protease-activating factor 1 (Apaf-1). According to the apoptosome model, the Bcl-2-like proteins preclude Apaf-1 activity by sequestering the protein. To explore Apaf-1 function and to test this model, we generated monoclo...
متن کاملPro-apoptotic Apoptosis Protease–activating Factor 1 (Apaf-1) Has a Cytoplasmic Localization Distinct from Bcl-2 or Bcl-x
How Bcl-2 and its pro-survival relatives prevent activation of the caspases that mediate apoptosis is unknown, but they appear to act through the caspase activator apoptosis protease–activating factor 1 (Apaf1). According to the apoptosome model, the Bcl-2–like proteins preclude Apaf-1 activity by sequestering the protein. To explore Apaf-1 function and to test this model, we generated monoclon...
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