The Atg6/Vps30/Beclin 1 ortholog BEC-1 mediates endocytic retrograde transport in addition to autophagy inC. elegans
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منابع مشابه
Inactivation of the Autophagy Gene bec-1 Triggers Apoptotic Cell Death in C. elegans
Programmed cell death (PCD) is an essential and highly orchestrated process that plays a major role in morphogenesis and tissue homeostasis during development. In humans, defects in regulation or execution of cell death lead to diabetes, neurodegenerative disorders, and cancer. Two major types of PCD have been distinguished: the caspase-mediated process of apoptosis and the caspase-independent ...
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Here we show that in the nematode Caenorhabditis elegans mutational inactivation of two autophagy genes unc-51/atg1 and bec-1/atg6/beclin1 results in small body size without affecting cell number. Furthermore, loss-of-function mutations in unc-51 and bec-1 suppress the giant phenotype of mutant animals with aberrant insulin-like growth factor-1 (insulin/IGF-1) or transforming growth factor-beta...
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Small GTPases of the Sar/Arf family are essential to generate transport containers that mediate communication between organelles of the secretory pathway. Guanine nucleotide exchange factor (GEFs) activate the small GTPases and help their anchorage in the membrane. Thus, GEFs in a way temporally and spatially control Sar1/Arf1 GTPase activation. We investigated the role of the ArfGEF GBF-1 in C...
متن کاملBehavioral analysis of the huntingtin-associated protein 1 ortholog trak-1 in Caenorhabditis elegans.
The precise role of huntingtin-associated protein 1 (HAP1) is not known, but studies have shown that it is important for early development and survival. A Caenorhabditis elegans ortholog of HAP1, T27A3.1 (also called trak-1), has been found and is expressed in a subset of neurons. Potential behavioral functions of three knockout lines of T27A3.1 were examined. From its suspected role in mice we...
متن کاملC. elegans CEP-1/p53 and BEC-1 Are Involved in DNA Repair
p53 is a transcription factor that regulates the response to cellular stress. Mammalian p53 functions as a tumor suppressor. The C. elegans p53, cep-1, regulates DNA-damage induced germline cell death by activating the transcription of egl-1 and ced-13. We used the C. elegans model to investigate how, in the whole animal, different forms of DNA damage can induce p53-dependent versus p53-indepen...
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ژورنال
عنوان ژورنال: Autophagy
سال: 2011
ISSN: 1554-8627,1554-8635
DOI: 10.4161/auto.7.4.14391