anti-ATG4B antibody

anti-ATG4B antibody for ICC/IF,IHC-Formalin-fixed paraffin-embedded sections,Western blot and Human

Cancer antibody; Cell Biology and Cellular Response antibody; Cell Death antibody; Metabolism antibody


Product Description Rabbit Polyclonal antibody recognizes ATG4B
Tested Reactivity Hu
Predict Reactivity Ms
Tested Application ICC/IF, IHC-P, WB
Host Rabbit
Clonality Polyclonal
Isotype IgG
Target Name ATG4B
Antigen Species Human
Immunogen KLH-conjugated synthetic peptide corresponding to aa. 358-390 (C-terminus) of Human ATG4B.
Conjugation Un-conjugated
Alternate Names Cysteine protease ATG4B; hAPG4B; Autophagin-1; APG4B; Autophagy-related protein 4 homolog B; Autophagy-related cysteine endopeptidase 1; EC 3.4.22.-; AUT-like 1 cysteine endopeptidase; AUTL1

Application Instructions

Application Suggestion
Tested Application Dilution
Application Note * The dilutions indicate recommended starting dilutions and the optimal dilutions or concentrations should be determined by the scientist.
Positive Control HeLa


Form Liquid
Purification This antibody is prepared by Saturated Ammonium Sulfate (SAS) precipitation followed by dialysis against PBS.
Buffer PBS and 0.09% (W/V) Sodium azide
Preservative 0.09% (W/V) Sodium azide
Storage Instruction For continuous use, store undiluted antibody at 2-8°C for up to a week. For long-term storage, aliquot and store at -20°C or below. Storage in frost free freezers is not recommended. Avoid repeated freeze/thaw cycles. Suggest spin the vial prior to opening. The antibody solution should be gently mixed before use.
Note For laboratory research only, not for drug, diagnostic or other use.


Database Links

GeneID: 23192 Human ATG4B

Swiss-port # Q9Y4P1 Human Cysteine protease ATG4B

Gene Symbol ATG4B
Gene Full Name autophagy related 4B, cysteine peptidase
Background Autophagy is the process by which endogenous proteins and damaged organelles are destroyed intracellularly. Autophagy is postulated to be essential for cell homeostasis and cell remodeling during differentiation, metamorphosis, non-apoptotic cell death, and aging. Reduced levels of autophagy have been described in some malignant tumors, and a role for autophagy in controlling the unregulated cell growth linked to cancer has been proposed. This gene encodes a member of the autophagin protein family. The encoded protein is also designated as a member of the C-54 family of cysteine proteases. Alternate transcriptional splice variants, encoding different isoforms, have been characterized. [provided by RefSeq, Jul 2008]
Function 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. [UniProt]
Cellular Localization Cytoplasm.
Research Area Cancer antibody; Cell Biology and Cellular Response antibody; Cell Death antibody; Metabolism antibody
Calculated MW 44 kDa

Images (3) Click the Picture to Zoom In

  • ARG54818 anti-ATG4B antibody ICC/IF image

    Immunofluorescence: U251 cells were treated with Chloroquine (50 µM, 16h), then fixed with 4% PFA (20 min), permeabilized with Triton X-100 (0.2%, 30 min). Cells were then stained with ARG54818 anti-ATG4B antibody (green) at 1:100 dilution, 2 h at room temperature. Nuclei were counterstained with Hoechst 33342 (blue) (10 µg/ml, 5 min). ATG4B immunoreactivity is localized to autophagic vacuoles in the cytoplasm of U251 cells.

  • ARG54818 anti-ATG4B antibody IHC-P image

    Immunohistochemistry: Formalin-fixed and paraffin-embedded Human cancer tissue stained with ARG54818 anti-ATG4B antibody.

  • ARG54818 anti-ATG4B antibody WB image

    Western blot: HeLa cell lysate stained with ARG54818 anti-ATG4B antibody.