Run domain Beclin-1-interacting and cysteine-rich domain-containing protein - Q92622 (RUBIC_HUMAN)

 

Protein Feature View of PDB entries mapped to a UniProtKB sequence  

 
Function
Inhibits PIK3C3 activity; under basal conditions negatively regulates PI3K complex II (PI3KC3-C2) function in autophagy. Negatively regulates endosome maturation and degradative endocytic trafficking and impairs autophagosome maturation process. Can sequester UVRAG from association with a class C Vps complex (possibly the HOPS complex) and negatively regulates Rab7 activation (PubMed:20974968, PubMed:21062745). UniProt
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Subunit Structure
Associates with PI3K (PI3KC3/PI3K-III/class III phosphatidylinositol 3-kinase) complex II (PI3KC3-C2) in which the core composed of the catalytic subunit PIK3C3, the regulatory subunit PIK3R4 and BECN1 is associated with UVRAG; in the complex interacts directly with PI3KC3 and UVRAG (PubMed:19270696, PubMed:21062745). Interacts with Rab7 (RAB7A or RAB7B) (GTP-bound form); Rab7 and UVRAG compete for RUBCN binding; can interact simultaneously with Rab7 and the PI3K complex (PubMed:20943950, PubMed:20974968, PubMed:21062745). Interacts with CYBA and CYBB; indicative for the association with the CYBA:CYBB NADPH oxidase heterodimer. Interacts with NOX4 and probably associates with the CYBA:NOX4 complex (PubMed:22423966). Interacts with YWHAB and CARD9 in a competetive and stimulation-dependent manner; RUBCN exchanges interaction from YWHAB to CARD9 upon stimulation with beta-1,3-glucan (PubMed:22423967). 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 Protein disorder predictions are based on JRONN (Troshin, P. and Barton, G. J. unpublished), a Java implementation of RONN  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.
  • Red: hydrophobic
  • 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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Validation Track

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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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