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貨期:
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用途:
For Research Use Only. Not for use in diagnostic or therapeutic procedures.
Cysteine protease required for the cytoplasm to vacuole transport (Cvt) and autophagy. Cleaves the C-terminal amino acid of ATG8 family proteins MAP1LC3, GABARAPL1, GABARAPL2 and GABARAP, to reveal a C-terminal glycine. Exposure of the glycine at the C-terminus is essential for ATG8 proteins conjugation to phosphatidylethanolamine (PE) and insertion to membranes, which is necessary for autophagy. Has also an activity of delipidating enzyme for the PE-conjugated forms.
基因功能參考文獻(xiàn):
ATG4B expression was observed markedly upregulated by EWS-FLI1 overexpression, and silencing of ATG4B dramatically inhibits autophagy in Ewing sarcoma cells. PMID: 28902354
study demonstrates that Rab7b regulates LC3 processing by modulating Atg4B activity; taken together, findings reveal Rab7b as a novel negative regulator of autophagy through its interaction with Atg4B PMID: 28835545
ATG4B contains a C-terminal LIR motif important for binding and efficient cleavage of mammalian orthologs of yeast Atg8 PMID: 28287329
O-GlcNAcylation of ATG4B regulates autophagy activation by increasing its proteolytic activity under metabolic stress condition PMID: 27527864
these results demonstrate a novel association of ATG4B positive expression with HER2 positive breast cancers PMID: 27556700
Knockdown of ATG4B had only a minor effect on AMPK activation and G1 phase arrest in liver kinase B1-deficient or AMPK-inhibited cancer cells. PMID: 29169176
Our work describes an MST4-ATG4B signaling axis that influences glioblastoma autophagy and malignancy PMID: 29232556
Data show that ULK1, a protein kinase activated at the autophagosome formation site, phosphorylates human ATG4B on serine 316. PMID: 28821708
Reporter assay showed that HSF1 increased the transcriptional activity of ATG4B gene promoter, and chromatin immunoprecipitation assay verified that HSF1 bound to the site (-1429 to -1417) in ATG4B gene promoter region. PMID: 28889000
The structure and regulatory machinery of Atg4b [review] PMID: 28253956
MIRlet-7i is able to regulate autophagic activity via regulating Atg4B expression, which might contribute to the pathogenesis of pre-eclampsia. PMID: 27770612
Results demonstrated that upregulation of miR-34a by transfection or demethylation resulted in the enhanced apoptosis and drug sensitivity in prostate cancer cells. ATG4B, directly regulated by miR-34a through AMPK/mTOR, was involved in this process. PMID: 26499184
Purified ATG4B protein interact with LC3B in vitro. PMID: 25652856
ATG4B independently plays a role as a positive regulator on tumor proliferation and a negative regulator on autophagy in colorectal cancer cells. PMID: 24991826
This study identifies ATG4B as a potential biomarker for predicting therapeutic response in treatment-naive chronic myeloid leukemia stem/progenitor cells and uncovers ATG4B as a possible drug target in these cells. PMID: 24755409
The actions of ATG4 family members (particularly ATG4B) are required for the control of autophagosome fusion with late, degradative compartments in differentiating human erythroblasts. PMID: 23508006
HsAtg4B negatively regulates the localization of LC3 to a membrane compartment by delipidation PMID: 15187094
analysis of specificity and catalysis of HsAtg4B PMID: 16183633
crystal structure of human Atg4b by X-ray crystallography at 2.0 A resolution, and show that Atg4b is a cysteine protease whose active catalytic triad site consists of Cys74, His280 and Asp278 PMID: 16325851
Murine Atg8L/Apg8L modification is mediated by human Atg4B. PMID: 16704426
The crystal structures of catalytically inert human Atg4B in complex with processed and unprocessed forms of LC3 showed that, on LC3 binding, the regulatory loop and the N-terminal tail of HsAtg4B undergo large conformational changes. PMID: 19322194