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An autophagosome is a spherical structure with double layer membranes. [2] It is the key structure in macroautophagy , the intracellular degradation system for cytoplasmic contents (e.g., abnormal intracellular proteins , excess or damaged organelles , invading microorganisms).
Microtubule-associated proteins 1A/1B light chain 3B (hereafter referred to as LC3) is a protein that in humans is encoded by the MAP1LC3B gene. [5] LC3 is a central protein in the autophagy pathway where it functions in autophagy substrate selection and autophagosome biogenesis. LC3 is the most widely used marker of autophagosomes. [6]
ATG may be part of the protein name (such as ATG7) or part of the gene name (such as ATG7), [53] although all ATG proteins and genes do not follow this pattern (such as ULK1). [ 52 ] To give specific examples, the UKL1 enzyme (kinase complex) induces autophagosome biogenesis, and ATG13 ( Autophagy-related protein 13 ) is required for phagosome ...
Microtubule-associated proteins 1A/1B light chain 3A is a protein that in humans is encoded by the MAP1LC3A gene. [ 5 ] [ 6 ] [ 7 ] Two transcript variants encoding different isoforms have been found for this gene.
Autophagy-related protein 13 also known as ATG13 is a protein that in humans is encoded by the KIAA0652 gene. [5]ATG13 is an autophagy factor required for phagosome formation. . ATG13 is a target of the TOR kinase signaling pathway that regulates autophagy through phosphorylation of ATG13 and ULK1, and the regulation of the ATG13-ULK1-RB1CC1 comp
After finishing vesicle expansion, the autophagosome is ready for fusion with the lysosome and Atg8 can either be released from the membrane for recycling (see below) or gets degraded in the autolysosome if left uncleaved. ATG8 is also required for a different autophagy-related process called the cytoplasm-to-vacuole targeting (Cvt) pathway. [14]
The Atg1 gene lies on chromosome VII of S. cerevisiae. The encoded protein with a mass of 101.7 kDa has a length of 897 amino acids and includes a protein serine/threonin kinase domain of 302 amino acids at its N-terminus. At the C-terminus, there is a 7 amino acid long region that is required for Cvt trafficking.
22241 Ensembl ENSG00000177169 ENSMUSG00000029512 UniProt O75385 O70405 RefSeq (mRNA) NM_003565 NM_009469 NM_001347394 RefSeq (protein) NP_003556 NP_001334323 NP_033495 Location (UCSC) Chr 12: 131.89 – 131.92 Mb Chr 5: 110.93 – 110.96 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Serine/threonine-protein kinase ULK1 is an enzyme that in humans is encoded by the ULK1 gene. Unc-51 ...