AMBRA1 Antibody (YA7097)(PBS only)

Cat. No.: HY-P87409A: Data Sheet User Guide for Antibodies
FAQs
Technical Support

AMBRA1 Antibody (YA7097) is a Mouse-derived and non-conjugated IgG1 monoclonal antibody, targeting to AMBRA1.

For research use only. We do not sell to patients.

Size		Stock
50 μL		Get quote
100 μL		Get quote

* Please select Quantity before adding items.

WB: Western Blot;
IHC-P: Immunohistochemistry-Paraffin;
IHC-F: Immunohistochemistry-Frozen;
ICC/IF: Immunocytochemistry/Immunofluorescence;
IF-Tissue: Immunofluorescence-Tissue;
mIHC: Multiplex Immunohistochemical;
IP: Immunoprecipitation;
ChIP: Chromatin Immunoprecipitation;
FC: Flow Cytometry;
ELISA: Enzyme Linked Immunosorbent Assay

Product Detail
Background
Documentation
References

Description

AMBRA1 Antibody (YA7097) is a Mouse-derived and non-conjugated IgG1 monoclonal antibody, targeting to AMBRA1.

Host

Mouse

Molecular Weight

Predicted band size: 142.5kDa;

Species Reactivity

Human

SwissProt ID

Q9C0C7

Immunogen

Purified recombinant fragment of human AMBRA1 (AA: 1177-1301) expressed in E. Coli.

Application &
Dilution Ratio

Application	Dilution Ratio
FC FC: Flow Cytometry	1:200-1:400
ELISA ELISA: Enzyme Linked Immunosorbent Assay	1:10000

Purity	affinity purified.	Conjugation	Non-conjugated
Isotype	IgG1

Appearance

Solution

Formulation

Supplied in PBS, pH 7.4.

Storage & Stability

Stored at -20°C for 1 year. Avoid repeated freeze / thaw cycles.

Shipping

Shipping with blue ice.

Background

Function：Substrate-recognition component of a DCX (DDB1-CUL4-X-box) E3 ubiquitin-protein ligase complex involved in cell cycle control and autophagy (PubMed:20921139, PubMed:23524951, PubMed:24587252, PubMed:32333458, PubMed:33854232, PubMed:33854235, PubMed:33854239). The DCX(AMBRA1) complex specifically mediates the polyubiquitination of target proteins such as BECN1, CCND1, CCND2, CCND3, ELOC and ULK1 (PubMed:23524951, PubMed:33854232, PubMed:33854235, PubMed:33854239). 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 (PubMed:33854232, PubMed:33854235, PubMed:33854239). 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 (PubMed:33854232, PubMed:33854235, PubMed:33854239). 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 (PubMed:25438055, PubMed:25803737). 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 (PubMed:25499913, PubMed:30166453). 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 (PubMed:21358617). In normal conditions, AMBRA1 is tethered to the cytoskeleton via interaction with dyneins DYNLL1 and DYNLL2 (PubMed:20921139). Upon autophagy induction, AMBRA1 is released from the cytoskeletal docking site to induce autophagosome nucleation by mediating ubiquitination of proteins involved in autophagy (PubMed:20921139). The DCX(AMBRA1) complex mediates 'Lys-63'-linked ubiquitination of BECN1, increasing the association between BECN1 and PIK3C3 to promote PIK3C3 activity (By similarity). In collaboration with TRAF6, AMBRA1 mediates 'Lys-63'-linked ubiquitination of ULK1 following autophagy induction, promoting ULK1 stability and kinase activity (PubMed:23524951). Also activates ULK1 via interaction with TRIM32: TRIM32 stimulates ULK1 through unanchored 'Lys-63'-linked polyubiquitin chains (PubMed:31123703). 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 (PubMed:21753002, PubMed:25215947). Also activates mitophagy by acting as a cofactor for HUWE1; acts by promoting HUWE1-mediated ubiquitination of MFN2 (PubMed:30217973). 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 (PubMed:30513302). May act as a regulator of intracellular trafficking, regulating the localization of active PTK2/FAK and SRC (By similarity). Also involved in transcription regulation by acting as a scaffold for protein complexes at chromatin (By similarity)

Subcellular Localization：Endoplasmic reticulum,Cytoplasm, cytoskeleton,Cytoplasmic vesicle, autophagosome,Mitochondrion,Cytoplasm, cytosol,Nucleus,Cell junction, focal adhesion

Expression：Induction: Negatively regulated by microRNA 7-3HG (miR7-3HG), which targets the 3' untranslated (3'-UTR) region of AMBRA1 transcripts, leading to a decrease of AMBRA1 mRNA and protein levels, thereby inhibiting autophagy (PubMed:28059583). Strongly up-regulated during egulatory T-cells (Treg) differentiation (PubMed:30513302)

Isoforms & Post-Translational Modification：Q9C0C7 has 6 isomers: Q9C0C7-1: 142507 Da (predicted); Q9C0C7-2: 135528 Da (predicted); Q9C0C7-3: 139269 Da (predicted); Q9C0C7-4: 132837 Da (predicted); Q9C0C7-5: 142585 Da (predicted); Q9C0C7-6: 84428 Da (predicted).
Phosphorylation at Ser-52 by MTOR inhibits its ability to regulate autophagy and mediate ubiquitination of ULK1 (PubMed:23524951)丨Ubiquitinated by RNF2 via 'Lys-48'-linkage in unstressed cells, leading to its degradation by the proteasome (PubMed:25499913)丨Undergoes proteolytic processing by caspase-6 (CASP6), caspase-7 (CASP7) and caspase-8 (CASP8) during apoptosis, resulting in the dismantling of the autophagic machinery and the accomplishment of the programmed cell death program (PubMed:22441670)

Subunit：Component of the DCX(AMBRA1) E3 ubiquitin ligase complex, also named CRL4(AMBRA1), at least composed of CUL4 (CUL4A or CUL4B), DDB1, AMBRA1 and RBX1 (PubMed:16949367, PubMed:25499913, PubMed:30166453, PubMed:33854232, PubMed:33854239)

Synonyms

DCAF3, KIAA1736, AMBRA1, Activating molecule in BECN1-regulated autophagy protein 1, DDB1- and CUL4-associated factor 3

Documentation

User Guide for Antibodies (1077 KB)

References

[1]. /biology-dictionary/sk-br-3-cell.html [Content Brief]