Rabbit anti-Human, Mouse ATG4B Polyclonal Antibody | anti-ATG4B antibody

ATG4B, NT (ATG4B, APG4B, AUTL1, KIAA0943, Cysteine protease ATG4B, AUT-like 1 cysteine endopeptidase, Autophagin-1, Autophagy-related cysteine endopeptidase 1, Autophagy-related protein 4 homolog B) (MaxLight 405)

Cat. Num. AAA6276144

• Gene Names: ATG4B; APG4B; AUTL1
• Reactivity: Human, Mouse
• Applications: Immunohistochemistry, Western Blot
• Purity: Purified by saturated ammonium sulfate precipitation followed by dialysis against PBS.
• Synonyms: ATG4B; Polyclonal Antibody; NT (ATG4B; APG4B; AUTL1; KIAA0943; Cysteine protease ATG4B; AUT-like 1 cysteine endopeptidase; Autophagin-1; Autophagy-related cysteine endopeptidase 1; Autophagy-related protein 4 homolog B) (MaxLight 405); Autophagy-related protein 4 homolog B; anti-ATG4B antibody

• Host: Rabbit
• Reactivity: Human, Mouse
• Clonality: Polyclonal
• Isotype: IgG
• Purity/Purification: Purified by saturated ammonium sulfate precipitation followed by dialysis against PBS.
• Form/Format: Supplied as a liquid in PBS, pH 7.2. No preservative added. Labeled with MaxLight405.

• Applicable Applications for anti-ATG4B antibody: Immunohistochemistry (IHC), FLISA, Western Blot (WB)
• Application Notes: IHC: 1:50-100; FLISA: 1:1,000; WB: 1:100-500; Applications are based on unconjugated antibody.
• Immunogen: ATG4B antibody is generated from rabbits immunized with a KLH conjugated synthetic peptide between 23~53 amino acids from the N-terminal region of human APG4B.
• Conjugate: MaxLight405
• Note: Preservative Free
• Preparation and Storage: Store product at 4 degree C in the dark. DO NOT FREEZE! Stable at 4 degree C for 12 months after receipt as an undiluted liquid. Dilute required amount only prior to immediate use. Further dilutions can be made in assay buffer. Caution: MaxLight405 conjugates are sensitive to light. For maximum recovery of product, centrifuge the original vial prior to removing the cap.

Western Blot (WB)

(Western blot analysis of anti-hAPG4B-R31 Pab in 293 cell line lysates transiently transfected with the ATG4B gene (2ug/lane). hAPG4B-R31(arrow) was detected using the purified Pab.)

Western Blot (WB)

(The anti-APG4B Pab is used in Western blot to detect APG4B in CEM tissue lysate)

Immunohistochemistry (IHC)

(Formalin-fixed and paraffin-embedded human cancer tissue reacted with the primary antibody, which was peroxidase-conjugated to the secondary antibody, followed by DAB staining. This data demonstrates the use of this antibody for immunohistochemistry; clinical relevance has not been evaluated. BC = breast carcinoma; HC = hepatocarcinoma.)

Western Blot (WB)

(APG4B Antibody (R31) western blot analysis in mouse cerebellum tissue lysates (35ug/lane).This demonstrates the APG4B antibody detected the APG4B protein (arrow).)

Related Product Information for anti-ATG4B antibody

Macroautophagy is the major inducible pathway for the general turnover of cytoplasmic constituents in eukaryotic cells, it is also responsible for the degradation of active cytoplasmic enzymes and organelles during nutrient starvation. Macroautophagy involves the formation of double-membrane bound autophagosomes which enclose the cytoplasmic constituent targeted for degradation in a membrane bound structure, which then fuse with the lysosome (or vacuole) releasing a single-membrane bound autophagic bodies which are then degraded within the lysosome (or vacuole). APG4 is a cysteine protease required for autophagy, which cleaves the C-terminal part of either MAP1LC3, GABARAPL2 or GABARAP, allowing the liberation of form I. A subpopulation of form I is subsequently converted to a smaller form (form II). Form II, with a revealed C-terminal glycine, is considered to be the phosphatidylethanolamine (PE)-conjugated form, and has the capacity for the binding to autophagosomes.

Product Categories/Family for anti-ATG4B antibody

Antibodies; Enzymes; Protease (Proteinase; Peptidase)

References

Baehrecke EH. Nat Rev Mol Cell Biol. 6(6):505-10. (2005). Lum JJ, et al. Nat Rev Mol Cell Biol. 6(6):439-48. (2005). Greenberg JT. Dev Cell. 8(6):799-801. (2005). Levine B. Cell. 120(2):159-62. (2005). Shintani T and Klionsky DJ. Science. 306(5698):990-5. (2004).

NCBI and Uniprot Product Information

• NCBI GI #: 47132611
• NCBI GeneID: 23192
• NCBI Accession #: NP_037457.3
• NCBI GenBank Nucleotide #: NM_013325.4
• UniProt Accession #: Q9Y4P1; Q53NU4; Q6ZUV8; Q8WYM9; Q96K07; Q96K96; Q96SZ1; Q9Y2F2; B7WNK2
• Molecular Weight: 44,294 Da
• NCBI Official Full Name: cysteine protease ATG4B isoform a
• NCBI Official Synonym Full Names: autophagy related 4B, cysteine peptidase
• NCBI Official Symbol: ATG4B
• NCBI Official Synonym Symbols: APG4B; AUTL1
• NCBI Protein Information: cysteine protease ATG4B; hAPG4B; autophagin-1; APG4 autophagy 4 homolog B; AUT-like 1 cysteine endopeptidase; ATG4 autophagy related 4 homolog B; autophagy-related protein 4 homolog B; autophagy-related cysteine endopeptidase 1
• UniProt Protein Name: Cysteine protease ATG4B
• Protein Family: Cysteine protease
• UniProt Gene Name: ATG4B
• UniProt Synonym Gene Names: APG4B; AUTL1; KIAA0943; hAPG4B
• UniProt Entry Name: ATG4B_HUMAN

NCBI Description

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]

Uniprot Description

ATG4B: Cysteine protease required for autophagy, which cleaves the C-terminal part of either MAP1LC3, GABARAPL2 or GABARAP, allowing the liberation of form I. A subpopulation of form I is subsequently converted to a smaller form (form II). Form II, with a revealed C-terminal glycine, is considered to be the phosphatidylethanolamine (PE)-conjugated form, and has the capacity for the binding to autophagosomes. Mainly expressed in the skeletal muscle, followed by brain, heart, liver and pancreas. Inhibited by N-ethylmaleimide. Belongs to the peptidase C54 family. 5 isoforms of the human protein are produced by alternative splicing.

Protein type: Autophagy; Protease; EC 3.4.22.-; Ubiquitin conjugating system

Chromosomal Location of Human Ortholog: 2q37.3

Cellular Component: cytoplasm; cytosol

Molecular Function: protein binding; cysteine-type endopeptidase activity; endopeptidase activity; cysteine-type peptidase activity

Biological Process: protein delipidation; mitochondrion degradation; positive regulation of protein catabolic process; autophagy; C-terminal protein lipidation; protein processing; protein targeting to membrane; proteolysis; positive regulation of autophagy; autophagic vacuole formation; cellular response to nitrogen starvation