• Western blot analysis of 293T 3T3 cells using AMBRA1 Polyclonal Antibody diluted at 1:500. Secondary antibody was diluted at 1:20000

Anti-AMBRA1 antibody (STJ98593)

SKU:
STJ98593

Current Stock:
Host: Rabbit
Applications: WB/ELISA
Reactivity: Human/Mouse
Note: STRICTLY FOR FURTHER SCIENTIFIC RESEARCH USE ONLY (RUO). MUST NOT TO BE USED IN DIAGNOSTIC OR THERAPEUTIC APPLICATIONS.
Short Description: Rabbit polyclonal antibody anti-Activating molecule in BECN1-regulated autophagy protein 1 is suitable for use in Western Blot and ELISA research applications.
Clonality: Polyclonal
Conjugation: Unconjugated
Isotype: IgG
Formulation: Liquid in PBS containing 50% Glycerol, 0.5% BSA and 0.02% Sodium Azide.
Purification: The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen.
Concentration: 1 mg/mL
Dilution Range: WB 1:500-2000
ELISA 1:10000-20000
Storage Instruction: Store at-20°C for up to 1 year from the date of receipt, and avoid repeat freeze-thaw cycles.
Gene Symbol: AMBRA1
Gene ID: 55626
Uniprot ID: AMRA1_HUMAN
Specificity: AMBRA1 Polyclonal Antibody detects endogenous levels of AMBRA1
Immunogen: Synthetic Peptide of AMBRA1
Function Substrate-recognition component of a DCX (DDB1-CUL4-X-box) E3 ubiquitin-protein ligase complex involved in cell cycle control and autophagy. The DCX(AMBRA1) complex specifically mediates the polyubiquitination of target proteins such as BECN1, CCND1, CCND2, CCND3, ELOC and ULK1. Acts as an upstream master regulator of the transition from G1 to S cell phase: AMBRA1 specifically recognizes and binds phosphorylated cyclin-D (CCND1, CCND2 and CCND3), leading to cyclin-D ubiquitination by the DCX(AMBRA1) complex and subsequent degradation. By controlling the transition from G1 to S phase and cyclin-D degradation, AMBRA1 acts as a tumor suppressor that promotes genomic integrity during DNA replication and counteracts developmental abnormalities and tumor growth. AMBRA1 also regulates the cell cycle by promoting MYC dephosphorylation and degradation independently of the DCX(AMBRA1) complex: acts via interaction with the catalytic subunit of protein phosphatase 2A (PPP2CA), which enhances interaction between PPP2CA and MYC, leading to MYC dephosphorylation and degradation. Acts as a regulator of Cul5-RING (CRL5) E3 ubiquitin-protein ligase complexes by mediating ubiquitination and degradation of Elongin-C (ELOC) component of CRL5 complexes. Acts as a key regulator of autophagy by modulating the BECN1-PIK3C3 complex: controls protein turnover during neuronal development, and regulates normal cell survival and proliferation. In normal conditions, AMBRA1 is tethered to the cytoskeleton via interaction with dyneins DYNLL1 and DYNLL2. Upon autophagy induction, AMBRA1 is released from the cytoskeletal docking site to induce autophagosome nucleation by mediating ubiquitination of proteins involved in autophagy. The DCX(AMBRA1) complex mediates 'Lys-63'-linked ubiquitination of BECN1, increasing the association between BECN1 and PIK3C3 to promote PIK3C3 activity. In collaboration with TRAF6, AMBRA1 mediates 'Lys-63'-linked ubiquitination of ULK1 following autophagy induction, promoting ULK1 stability and kinase activity. Also activates ULK1 via interaction with TRIM32: TRIM32 stimulates ULK1 through unanchored 'Lys-63'-linked polyubiquitin chains. Also acts as an activator of mitophagy via interaction with PRKN and LC3 proteins (MAP1LC3A, MAP1LC3B or MAP1LC3C).possibly by bringing damaged mitochondria onto autophagosomes. Also activates mitophagy by acting as a cofactor for HUWE1.acts by promoting HUWE1-mediated ubiquitination of MFN2. AMBRA1 is also involved in regulatory T-cells (Treg) differentiation by promoting FOXO3 dephosphorylation independently of the DCX(AMBRA1) complex: acts via interaction with PPP2CA, which enhances interaction between PPP2CA and FOXO3, leading to FOXO3 dephosphorylation and stabilization. May act as a regulator of intracellular trafficking, regulating the localization of active PTK2/FAK and SRC. Also involved in transcription regulation by acting as a scaffold for protein complexes at chromatin.
Protein Name Activating Molecule In Becn1-Regulated Autophagy Protein 1
Ddb1- And Cul4-Associated Factor 3
Database Links Reactome: R-HSA-1632852
Cellular Localisation Endoplasmic Reticulum
Cytoplasm
Cytoskeleton
Cytoplasmic Vesicle
Autophagosome
Mitochondrion
Cytosol
Nucleus
Cell Junction
Focal Adhesion
Localizes To The Cytoskeleton In Absence Of Autophagy Induction
Upon Autophagy Induction
Ambra1 Relocalizes To The Endoplasmic Reticulum To Enable Autophagosome Nucleation
Partially Localizes At Mitochondria In Normal Conditions
Localizes Also To Discrete Punctae Along The Ciliary Axoneme
Alternative Antibody Names Anti-Activating Molecule In Becn1-Regulated Autophagy Protein 1 antibody
Anti-Ddb1- And Cul4-Associated Factor 3 antibody
Anti-AMBRA1 antibody
Anti-DCAF3 antibody
Anti-KIAA1736 antibody

Information sourced from Uniprot.org

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