Identification
HMDB Protein ID CDBP05634
Secondary Accession Numbers Not Available
Name Beclin-1
Description Not Available
Synonyms Not Available
Gene Name BECN1
Protein Type Receptor
Biological Properties
General Function ubiquitin protein ligase binding
Specific Function Plays a central role in autophagy (PubMed:23184933, PubMed:28445460). Acts as core subunit of the PI3K complex that mediates formation of phosphatidylinositol 3-phosphate; different complex forms are believed to play a role in multiple membrane trafficking pathways: PI3KC3-C1 is involved in initiation of autophagosomes and PI3KC3-C2 in maturation of autophagosomes and endocytosis. Involved in regulation of degradative endocytic trafficking and required for the abcission step in cytokinesis, probably in the context of PI3KC3-C2 (PubMed:20643123, PubMed:20208530, PubMed:26783301). Essential for the formation of PI3KC3-C2 but not PI3KC3-C1 PI3K complex forms. Involved in endocytosis (PubMed:25275521). Protects against infection by a neurovirulent strain of Sindbis virus (PubMed:9765397). May play a role in antiviral host defense.Beclin-1-C 35 kDa localized to mitochondria can promote apoptosis; it induces the mitochondrial translocation of BAX and the release of proapoptotic factors.
GO Classification
Biological Process
defense response to virus
late endosome to vacuole transport
regulation of cytokinesis
mitophagy
viral reproduction
mitotic metaphase plate congression
positive regulation of phosphatidylinositol 3-kinase cascade
negative regulation of cell death
autophagosome assembly
endocytosis
positive regulation of attachment of mitotic spindle microtubules to kinetochore
autophagy of mitochondrion
autophagy
protein deubiquitination
cellular response to nitrogen starvation
response to mitochondrial depolarisation
macroautophagy
receptor catabolic process
cell division
cellular response to glucose starvation
apoptotic process
negative regulation of apoptotic process
cellular defense response
positive regulation of intrinsic apoptotic signaling pathway
early endosome to late endosome transport
Cellular Component
cell
autophagosome
endoplasmic reticulum membrane
cytosol
mitochondrial membrane
phagophore assembly site
endoplasmic reticulum
phosphatidylinositol 3-kinase complex, class III
phosphatidylinositol 3-kinase complex, class III, type I
Golgi apparatus
phosphatidylinositol 3-kinase complex, class III, type II
nucleus
extrinsic to membrane
endosome membrane
endosome
Molecular Function
ubiquitin protein ligase binding
GTPase binding
phosphatidylinositol 3-kinase binding
protein kinase binding
Cellular Location
  1. Nucleus
  2. Cytoplasm
  3. Mitochondrion
  4. Endosome membrane
  5. Cytoplasmic vesicle
  6. Endoplasmic reticulum membrane
  7. Mitochondrion membrane
  8. Golgi apparatus
  9. trans-Golgi network membrane
  10. Endosome
  11. Autophagosome
Pathways
Gene Properties
Chromosome Location 17
Locus 17q21.31
SNPs Not Available
Gene Sequence Not Available
Protein Properties
Number of Residues 450
Molecular Weight 51895.945
Theoretical pI Not Available
Pfam Domain Function
Signals Not Available
Transmembrane Regions Not Available
Protein Sequence
>Beclin-1
MEGSKTSNNSTMQVSFVCQRCSQPLKLDTSFKILDRVTIQELTAPLLTTAQAKPGETQEE
ETNSGEEPFIETPRQDGVSRRFIPPARMMSTESANSFTLIGEASDGGTMENLSRRLKVTG
DLFDIMSGQTDVDHPLCEECTDTLLDQLDTQLNVTENECQNYKRCLEILEQMNEDDSEQL
QMELKELALEEERLIQELEDVEKNRKIVAENLEKVQAEAERLDQEEAQYQREYSEFKRQQ
LELDDELKSVENQMRYAQTQLDKLKKTNVFNATFHIWHSGQFGTINNFRLGRLPSVPVEW
NEINAAWGQTVLLLHALANKMGLKFQRYRLVPYGNHSYLESLTDKSKELPLYCSGGLRFF
WDNKFDHAMVAFLDCVQQFKEEVEKGETRFCLPYRMDVEKGKIEDTGGSGGSYSIKTQFN
SEEQWTKALKFMLTNLKWGLAWVSSQFYNK
GenBank ID Protein Not Available
UniProtKB/Swiss-Prot ID Q14457
UniProtKB/Swiss-Prot Entry Name BECN1_HUMAN
PDB IDs
GenBank Gene ID Not Available
GeneCard ID Not Available
GenAtlas ID Not Available
HGNC ID HGNC:1034
References
General References Not Available