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How is lc3-II create? 


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LC3-II is created through post-translational modifications of LC3-I. LC3-I is a cytosolic form of LC3, while LC3-II is membrane-bound . The C-terminal fragment of LC3 is cleaved immediately after synthesis to produce LC3-I . A fraction of LC3-I is then converted into LC3-II, which associates with autophagosome membranes . LC3-II is formed by the conjugation of LC3-I to phosphatidylethanolamine (PE) . This modification is similar to the ubiquitylation process, involving enzymes Apg7p and Apg3p . Other mammalian homologues of yeast Atg8, such as GABARAP and GATE16, also generate LC3-II and associate with autophagosomal membranes . The amount of LC3-II is correlated with the extent of autophagosome formation .

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LC3-II is created through a series of steps involving post-translational modifications. LC3-I is first cleaved to form LC3-II, which is then conjugated with phosphatidylethanolamine (PE) to become the LC3-PE conjugate.
Book ChapterDOI
Isei Tanida, Takashi Ueno, Eiki Kominami 
1.3K Citations
LC3-II is created during autophagy when a cytosolic form of LC3 (LC3-I) is conjugated to phosphatidylethanolamine to form LC3-phosphatidylethanolamine conjugate (LC3-II), which is recruited to autophagosomal membranes.
LC3-II is created by the removal of the C-terminal 22 amino acids from newly synthesized LC3, followed by the conversion of a fraction of LC3-I into LC3-II.
LC3-II is created by the conjugation of cytosolic LC3-I to phosphatidylethanolamine (PE) on the surface of nascent autophagosomes.

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