Tossup

SAR405 regulates this process by inhibiting Vps34, which activates a protein complex containing MLST8 and PRAS40. HSC70 initiates one form of this process by binding to proteins with a KFERQ (“K-F-E-R-Q”) motif and directing them to a LAMP2A (-5[1])multimeric complex. That chaperone-mediated form of this process (-5[1])is important for regulating cells under mechanical stress like muscle cells. By phosphorylating ULK1, mTOR (“M-tor”) downregulates this process. A study of this process earned Yoshinori Ohsumi a Nobel Prize in 2016. (10[1])In yeast, this process is regulated by ATG proteins, and may be induced via starvation. During this process, large vesicles bind to lysosomes, (-5[1])whose hydrolytic enzymes (-5[1])break down defective proteins and organelles. For 10 points, (-5[1])name this process in which a cell digests (-5[1])its own components. ■END■ (10[3]0[5])

ANSWER: autophagy [or autophagocytosis; reject “phagocytosis”]
<Ohio State A, Biology>
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