4gdk

Crystal Structure of Human Atg12~Atg5 Conjugate in Complex with an N-terminal Fragment of Atg16L1

spinqualitylabelsall models 4gdk, resolution 2.70Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 4gdk is a 6 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2.7Å Ligands: NA Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Publication Abstract from PubMed The autophagy factor ATG12~ATG5 conjugate exhibits E3 ligase-like activity which facilitates the lipidation of members of the LC3 family. The crystal structure of the human ATG12~ATG5 conjugate bound to the N-terminal region of ATG16L1, the factor that recruits the conjugate to autophagosomal membranes, reveals an integrated architecture in which ATG12 docks onto ATG5 through conserved residues. ATG12 and ATG5 are oriented such that other conserved residues on each molecule, including the conjugation junction, form a continuous surface patch. Mutagenesis data support the importance of both the interface between ATG12 and ATG5 and the continuous patch for E3 activity. The ATG12~ATG5 conjugate interacts with the E2 enzyme ATG3 with high affinity through another surface location that is exclusive to ATG12, suggesting a different role of the continuous patch in E3 activity. These findings provide a foundation for understanding the mechanism of LC3 lipidation. Structure of the human ATG12~ATG5 conjugate required for LC3 lipidation in autophagy.,Otomo C, Metlagel Z, Takaesu G, Otomo T Nat Struct Mol Biol. 2012 Dec 2. doi: 10.1038/nsmb.2431. PMID:23202584 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Autophagy-related protein 3D structures

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