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  • Product Name
    LC3A/B Antibody
  • Catalog No.
  • Source
  • Application
  • Reactivity
    Human, Mouse, Rat
  • Prediction
    Pig(100%), Zebrafish(93%), Bovine(100%), Sheep(100%), Dog(100%), Xenopus(100%)
  • UniProt
  • Mol.Wt.
    14kDa,16 kDa,15kDa
  • Concentration
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Product Information

Alternative Names:Expand▼

ATG8E; Autophagy-related protein LC3 A; Autophagy-related ubiquitin-like modifier LC3 A; LC3; LC3A; MAP1 light chain 3 like protein 1; MAP1 light chain 3-like protein 1; MAP1A/1B light chain 3 A; MAP1A/MAP1B LC3 A; MAP1A/MAP1B light chain 3 A; MAP1ALC3; MAP1BLC3; Map1lc3a; Microtubule associated proteins 1A/1B light chain 3; Microtubule-associated protein 1 light chain 3 alpha; Microtubule-associated proteins 1A and 1B, light chain 3; Microtubule-associated proteins 1A/1B light chain 3A; MLP3A_HUMAN; ATG8F; Autophagy-related protein LC3 B; Autophagy-related ubiquitin-like modifier LC3 B; LC3B; LC3II; MAP1 light chain 3 like protein 2; MAP1 light chain 3-like protein 2; MAP1A/1BLC3; MAP1A/MAP1B LC3 B; MAP1A/MAP1B light chain 3 B; MAP1ALC3; MAP1LC3B a; Map1lc3b; Microtubule associated protein 1 light chain 3 beta; Microtubule-associated protein 1 light chain 3 beta; Microtubule-associated proteins 1A/1B light chain 3B; MLP3B_HUMAN;


WB 1:500-1:2000, IHC 1:50-1:200, IF/ICC 1:100-1:500, ELISA(peptide) 1:20000-1:40000


Human, Mouse, Rat

Predicted Reactivity:

Pig(100%), Zebrafish(93%), Bovine(100%), Sheep(100%), Dog(100%), Xenopus(100%)






The antiserum was purified by peptide affinity chromatography using SulfoLink™ Coupling Resin (Thermo Fisher Scientific).


LC3A/B Antibody detects endogenous levels of total LC3A/B.





Storage Condition and Buffer:

Rabbit IgG in phosphate buffered saline , pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.Store at -20 °C.Stable for 12 months from date of receipt.

Immunogen Information


A synthesized peptide derived from human LC3B, corresponding to a region within N-terminal amino acids.


>>Visit The Human Protein Atlas

Gene ID:

Gene Name:


Molecular Weight:

Observed Mol.Wt.: 14kDa,16 kDa.
Predicted Mol.Wt.: 15kDa.

Subcellular Location:

Cytoplasm > cytoskeleton. Endomembrane system. Cytoplasmic vesicle > autophagosome membrane. LC3-II binds to the autophagic membranes.

Tissue Specificity:

Most abundant in heart, brain, liver, skeletal muscle and testis but absent in thymus and peripheral blood leukocytes.


Ubiquitin-like modifier involved in formation of autophagosomal vacuoles (autophagosomes). Plays a role in mitophagy which contributes to regulate mitochondrial quantity and quality by eliminating the mitochondria to a basal level to fulfill cellular energy requirements and preventing excess ROS production.

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Ubiquitin-like modifier involved in formation of autophagosomal vacuoles (autophagosomes) (PubMed:20713600, PubMed:24290141). Whereas LC3s are involved in elongation of the phagophore membrane, the GABARAP/GATE-16 subfamily is essential for a later stage in autophagosome maturation (PubMed:20713600).

Post-translational Modifications:

The precursor molecule is cleaved by 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 (PubMed:15187094).The Legionella effector RavZ is a deconjugating enzyme that produces an ATG8 product that would be resistant to reconjugation by the host machinery due to the cleavage of the reactive C-terminal glycine.Phosphorylation at Ser-12 by PKA inhibits conjugation to phosphatidylethanolamine (PE). Interaction with MAPK15 reduces the inhibitory phosphorylation and increases autophagy activity.

Subcellular Location:


Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte

Subunit Structure:

3 different light chains, LC1, LC2 and LC3, can associate with MAP1A and MAP1B proteins (By similarity). Interacts with TP53INP1 and TP53INP2 (PubMed:19056683, PubMed:22470510). Directly interacts with SQSTM1; this interaction leads to MAP1LC3A recruitment to inclusion bodies containing polyubiquitinated protein aggregates and to inclusion body degradation by autophagy (PubMed:17580304). Interacts with ATG13 (PubMed:24290141, PubMed:23043107). Interacts with ULK1 (PubMed:23043107). Interacts with TBC1D5 (PubMed:22354992). Found in a complex with UBQLN1 and UBQLN2 (PubMed:20529957). Interacts with UBQLN4 (via STI1 1 and 2 domains). Interacts with UBQLN1 in the presence of UBQLN4 (PubMed:23459205). Interacts with TRIM5 (PubMed:25127057). Interacts with MEFV (PubMed:26347139). Interacts with RETREG1, RETREG2 and RETREG3 (PubMed:26040720).


Belongs to the ATG8 family.

Research Fields

Research Fields:

· Cellular Processes > Cell growth and death > Ferroptosis.(View pathway)

Reference Citations:

1). Wang M et al. Atractylenolide III Attenuates Muscle Wasting in Chronic Kidney Disease via the Oxidative Stress-Mediated PI3K/AKT/mTOR Pathway. Oxid Med Cell Longev 2019 Apr 18;2019:1875471 (PubMed: 31178951) [IF=4.868]

2). Shao L et al. Inhibition of mTORC1 signaling protects kidney from irradiation-induced toxicity via accelerating recovery of renal stem-like cells. Stem Cell Res Ther 2018 Aug 14;9(1):219 (PubMed: 30107854) [IF=4.627]

3). Gu L et al. Andrographolide Protects PC12 Cells Against β-Amyloid-Induced Autophagy-Associated Cell Death Through Activation of the Nrf2-Mediated p62 Signaling Pathway. Int J Mol Sci 2018 Sep 19;19(9) (PubMed: 30235892) [IF=4.183]

4). Cao Y et al. Punicalagin Prevents Inflammation in LPS-Induced RAW264.7 Macrophages by Inhibiting FoxO3a/Autophagy Signaling Pathway. Nutrients 2019 Nov 15;11(11) (PubMed: 31731808) [IF=4.171]

5). Zhang S et al. Dorsal Root Ganglion Maintains Stemness of Bone Marrow Mesenchymal Stem Cells by Enhancing Autophagy through the AMPK/mTOR Pathway in a Coculture System. Stem Cells Int 2018 Sep 30;2018:8478953 (PubMed: 30363977) [IF=3.902]

6). Feng X et al. Mycobacterium smegmatis Induces Neurite Outgrowth and Differentiation in an Autophagy-Independent Manner in PC12 and C17.2 Cells. Front Cell Infect Microbiol 2018 Jun 19;8:201 (PubMed: 29988402) [IF=3.518]

7). Luo R et al. Berberine ameliorates oxidative stress-induced apoptosis by modulating ER stress and autophagy in human nucleus pulposus cells. Life Sci 2019 Apr 29 (PubMed: 31047897) [IF=3.448]

8). Tang Z et al. Human tissue kallikrein 1 ameliorates erectile function via modulation of macroautophagy in aged transgenic rats. Andrology 2018 Jun 25 (PubMed: 29939496) [IF=3.106]

9). Wu CZ et al. HMGB1/RAGE axis mediates the apoptosis, invasion, autophagy, and angiogenesis of the renal cell carcinoma. Onco Targets Ther 2018 Aug 1;11:4501-4510 (PubMed: 30122942) [IF=3.046]

10). Su R et al. The potential immunotoxicity of fine particulate matter based on SD rat spleen. Environ Sci Pollut Res Int 2019 Aug;26(23):23958-23966 (PubMed: 31218585)

11). Jiao XF et al. Effects of Acute Fluorene-9-Bisphenol Exposure on Mouse Oocyte in vitro Maturation and Its Possible Mechanisms. Environ Mol Mutagen 2018 Nov 30 (PubMed: 30499614)

12). Xiaojun Li et al. Recombinant human irisin regulated collagen II, matrix metalloproteinase‑13 and the Wnt/β‑catenin and NF‑κB signaling pathways in interleukin‑1β‑induced human SW1353 cells. EXP THER MED 2020 Feb 26

13). Zhang KQ et al. Effect of probucol on autophagy and apoptosis in the penile tissue of streptozotocin-induced diabetic rats. Asian J Androl 2019 Aug 23 (PubMed: 31464204)

14). et al. Effects of Sancai Lianmei Particle on autophagy and apoptosis in testes of diabetic mice via the Nrf2/HO-1 pathway. Int J Clin Exp Med 2019;12(6):6720-6732

15). et al. Homocysteine induces human mesangial cell apoptosis via the involvement of autophagy and endoplasmic reticulum stress.

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Catalog Number :

(Blocking peptide available as AF5402-BP)

Price/Size :

Tips: For phospho antibody, we provide phospho peptide(0.5mg) and non-phospho peptide(0.5mg).

Function :

Blocking peptides are peptides that bind specifically to the target antibody and block antibody binding. These peptide usually contains the epitope recognized by the antibody. Antibodies bound to the blocking peptide no longer bind to the epitope on the target protein. This mechanism is useful when non-specific binding is an issue, for example, in Western blotting (immunoblot) and immunohistochemistry (IHC). By comparing the staining from the blocked antibody versus the antibody alone, one can see which staining is specific; Specific binding will be absent from the western blot or immunostaining performed with the neutralized antibody.

Format and storage :

Synthetic peptide was lyophilized with 100% acetonitrile and is supplied as a powder. Reconstitute with 0.1 ml DI water for a final concentration of 10 mg/ml.The purity is >90%,tested by HPLC and MS.Storage Maintain refrigerated at 2-8°C for up to 6 months. For long term storage store at -20°C.

Precautions :

This product is for research use only. Not for use in diagnostic or therapeutic procedures.

High similarity Medium similarity Low similarity No similarity
Q9H492/Q9GZQ8 as Substrate
Site PTM Type Enzyme
S12 Phosphorylation P17612 (PRKACA)
K42 Ubiquitination
K49 Acetylation
K49 Ubiquitination
T50 Phosphorylation Q13188 (STK3) , Q13043 (STK4)
K51 Acetylation
S92 Phosphorylation
T93 Phosphorylation
Site PTM Type Enzyme
K5 Ubiquitination
T6 Phosphorylation
R21 Methylation
T29 Phosphorylation
K30 Ubiquitination
K42 Ubiquitination
K49 Ubiquitination
K51 Ubiquitination
K65 Ubiquitination
IMPORTANT: For western blots, incubate membrane with diluted antibody in 5% w/v milk , 1X TBS, 0.1% Tween®20 at 4°C with gentle shaking, overnight.

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