Introduction
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). MAP1A and MAP1B are microtubule-associated proteins which mediate the physical interactions between microtubules and components of the cytoskeleton. These proteins are involved in formation of autophagosomal vacuoles (autophagosomes). MAP1A and MAP1B each consist of a heavy chain subunit and multiple light chain subunits. MAP1LC3b is one of the light chain subunits and can associate with either MAP1A or MAP1B. The precursor molecule is cleaved by APG4B/ATG4B to form the cytosolic form, LC3-I. This is activated by APG7L/ATG7, transferred to ATG3 and conjugated to phospholipid to form the membrane-bound form, LC3-II.
Specificity
Predicted Reactivity
Bovine
Other Names
MAP1LC3B; MAP1ALC3; Microtubule-associated proteins 1A/1B light chain 3B; Autophagy-related protein LC3 B; Autophagy-related ubiquitin-like modifier LC3 B; MAP1 light chain 3-like protein 2; MAP1A/MAP1B light chain 3 B; Microtubule-associated protein 1 light chain 3 beta
NCBI Accession #
NP_073729.1
Other Accession #
A6NCE7; O41515
Format
Type
Purified Rabbit Polyclonal Antibody (Pab)
Calculated Molecular Weight (Da)
14688
Recommended Dilutions
WB: 1:1000; IF: 1:100; IHC: 1:50-100
 | Western blot analysis of anti-LC3 (APG8b) in untreated or treated Hela cell lysate. Both non-lipidated (arrow, I) and lipidated LC3 (APG8b) (arrow, II) were detected in but pro-LC3 (APG8b) and non-lipidated LC3 ((APG8b) were detected in soluble fraction (S). |
 | Immunofluorescent analysis of U251 cells, using LC3 Antibody (APG8B)(N-term)(Cat# 102-13634). U251 cells(right) were treated with Chloroquine (50 µM,16h). 102-13634 was diluted at 1:25 dilution. Alexa Fluor 488-conjugated goat anti-rabbit lgG at 1:400 dilution was used as the secondary antibody (green).DAPI was used to stain the cell nuclear (blue). |
 | Immunofluorescent analysis of U251 cells, using LC3 Antibody (APG8B) (N-term)(Cat# 102-13634). U251 cells(right) were treated with Chloroquine (50 µM,16h). 102-13634 was diluted at 1:100 dilution. Alexa Fluor 488-conjugated goat anti-rabbit lgG at 1:400 dilution was used as the secondary antibody (green).DAPI was used to stain the cell nuclear (blue). |
 | Immunofluorescent analysis of U251 cells, using LC3 Antibody (APG8B)(N-term) (Cat# 102-13634). U251 cells(right) were treated with Chloroquine (50 µM,16h). 102-13634 was diluted at 1:25 dilution. Alexa Fluor 488-conjugated goat anti-rabbit lgG at 1:400 dilution was used as the secondary antibody (green).DAPI was used to stain the cell nuclear (blue). |
_(N-term)_U251.jpg) | Fluorescent image of U251 cells stained with LC3 (APG8B) (N-term) antibody. 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 incubated with AP1801i LC3 (Isoform B Specific) primary antibody (1:100, 2 h at room temperature). For secondary antibody, Alexa Fluor® 488 conjugated donkey anti-rabbit antibody (green) was used (1:1000, 1h). Nuclei were counterstained with Hoechst 33342 (blue) (10 µg/ml, 5 min). LC3 immunoreactivity is localized to autophagic vacuoles in the cytoplasm of U251 cells. |
 | Western blot analysis of anti-LC3 (APG8b) Pab (Cat# 102-13634) in rat brain lysate. Both non-lipidated (arrow, I) and lipidated LC3 (APG8b) (arrow, II) were detected in membrane fraction (P) but pro-LC3 (APG8b) and non-lipidated LC3 ((APG8b) were detected in soluble fraction (S). |
 | Western blot analysis of anti-LC3 (APG8b) Pab (Cat# 102-13634) in 293 cell line lysates transiently transfected with the LC3 (APG8b) gene (2ug/lane). Human LC3 (APG8b) (arrow) was detected using the purified Pab. |
Antigen Source
HUMAN
Storage/Stability
2-8°C (short-term); -20°C (long-term)
Expiration:
12 months from the date of shipment when stored properly.