Beclin 1-associated autophagy-related key regulator - Q6ZNE5 (BAKOR_HUMAN)

 

Protein Feature View of PDB entries mapped to a UniProtKB sequence  

 
Function
Required for both basal and inducible autophagy. Determines the localization of the autophagy-specific PI3-kinase complex PI3KC3-C1 (PubMed:18843052, PubMed:19050071). Plays a role in autophagosome formation and MAP1LC3/LC3 conjugation to phosphatidylethanolamine (PubMed:19270696, PubMed:20713597). Promotes BECN1 translocation from the trans-Golgi network to autophagosomes (PubMed:20713597). Enhances PIK3C3 activity in a BECN1-dependent manner. Essential for the autophagy-dependent phosphorylation of BECN1 (PubMed:23878393). Stimulates the phosphorylation of BECN1, but suppresses the phosphorylation PIK3C3 by AMPK (PubMed:23878393). Binds to STX17-SNAP29 binary t-SNARE complex on autophagosomes and primes it for VAMP8 interaction to promote autophagosome-endolysosome fusion (PubMed:25686604). Modulates the hepatic lipid metabolism (By similarity). UniProt
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Subunit Structure
Forms homooligomers; homo-oligomerization is essential for the roles in membrane tethering and enhancement of SNARE-mediated fusion (PubMed:25686604). Component of the PI3K (PI3KC3/PI3K-III/class III phosphatidylinositol 3-kinase) complex I (PI3KC3-C1) in which the core composed of the catalytic subunit PIK3C3, the regulatory subunit PIK3R4 and BECN1 is associated with ATG14 (PubMed:18843052, PubMed:19050071, PubMed:19270696, PubMed:22314358, PubMed:23878393). PI3KC3-C1 displays a V-shaped architecture with PIK3R4 serving as a bridge between PIK3C3 and the ATG14:BECN1 subcomplex (PubMed:25490155). PI3KC3-C1 can associate with further regulatory subunits. Interacts with PIK3CB (By similarity). Interacts (via coiled-coil domain) with BECN2 (via coiled-coil domain); this interaction is tighter than BECN2 self-association (PubMed:23954414, PubMed:28218432). Interacts with the STX17-SNAP29 binary t-SNARE complex (PubMed:25686604). Interacts with NRBF2 (By similarity). Interacts with PIK3C3 and BECN1; this interaction is increased in the absence of TMEM39A (PubMed:31806350). UniProt
Domain
The N-terminal cysteine repeats are required for proper localization to the endoplasmic reticulum. UniProt
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Data in green originates from UniProtKB  
Variation data (sourced from UniProt) shows non-genetic variation from the ExPASy   and dbSNP   websites.
Data in yellow originates from Pfam  , by interacting with the HMMER3 web site  
Data in purple originates from Phosphosite  .
Data in orange originates from the SCOP   (version 1.75) and SCOPe   (version 2.04) classifications.
Data in grey has been calculated using BioJava  . Protein disorder predictions are based on JRONN (Troshin, P. and Barton, G. J. unpublished), a Java implementation of RONN  
  • Red: potentially disorderd region
  • Blue: probably ordered region.
Hydropathy has been calculated using a sliding window of 15 residues and summing up scores from standard hydrophobicity tables.
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  • Blue: hydrophilic.
Data in lilac represent the genomic exon structure projected onto the UniProt sequence.
Data in blue originates from PDB
  • Secstruc: Secondary structure projected from representative PDB entries onto the UniProt sequence.
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Data in red indicates combined ranges of Homology Models from the SWISS-MODEL Repository  
The PDB to UniProt mapping is based on the data provided by the EBI SIFTS project. See also Velankar et al., Nucleic Acids Research 33, D262-265 (2005).
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