LC3A Antibody (23GB1960)

Novus Biologicals | Catalog # NBP3-50961

Novus Biologicals
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Key Product Details

Species Reactivity

Human, Mouse, Rat

Applications

Western Blot, Immunocytochemistry/ Immunofluorescence, Knockdown Validated

Label

Unconjugated

Antibody Source

Monoclonal Rabbit IgG Clone # 23GB1960
View all LC3A Primary Antibodies »

Product Specifications

Immunogen

A synthesized peptide derived from human LC3A (Uniprot: Q9H492)

Clonality

Monoclonal

Host

Rabbit

Isotype

IgG

Scientific Data Images for LC3A Antibody (23GB1960)

LC3A Antibody (23GB1960)

Immunocytochemistry/ Immunofluorescence: LC3A Antibody (23GB1960)[NBP3-50961] -

Immunocytochemical staining of C2C12 cells with LC3A antibody (1:1,000). Nuclei were stained blue with DAPI; LC3A was stained magenta with Alexa Fluor(R) 647. Images were taken using Leica stellaris 5. Protein abundance based on laser Intensity and smart gain: Medium. Scale bar, 20 um.
LC3A Antibody (23GB1960)

Western Blot: LC3A Antibody (23GB1960)[NBP3-50961] -

Western blotting analysis using LC3A antibody (1:20,000) and HRP-conjugated goat anti-rabbit secondary antibody (1:20,000) respectively. Image was developed using FeQ(TM) ECL Substrate Kit.
LC3A Antibody (23GB1960)

Western Blot: LC3A Antibody (23GB1960)[NBP3-50961] -

Western blotting analysis using LC3A antibody (1:20,000) and HRP-conjugated goat anti-rabbit secondary antibody (1:20,000) respectively. Image was developed using FeQ(TM) ECL Substrate Kit.

Applications for LC3A Antibody (23GB1960)

Application
Recommended Usage

Immunocytochemistry/ Immunofluorescence

Optimal dilutions of this antibody should be experimentally determined.

Knockdown Validated

Optimal dilutions of this antibody should be experimentally determined.

Western Blot

Optimal dilutions of this antibody should be experimentally determined.

Formulation, Preparation, and Storage

Purification

Affinity purified

Formulation

PBS (pH 7.4), 50% glycerol

Preservative

0.02% Sodium Azide

Concentration

Please see the vial label for concentration. If unlisted please contact technical services.

Shipping

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Store at -20C. Avoid freeze-thaw cycles.

Background: LC3A

Human Microtubule-associated Protein 1A/1B Light Chain 3A (MAP1LC3A), also called LC3A for short, is a 121 amino acid (aa) protein with a theoretic molecular weight of ~14 kDa. LC3A belongs to the LC3 subfamily of Autophagy-related 8 (Atg8) proteins, which also includes LC3B and LC3C (1). The process of autophagy is the bulk degradation of proteins and organelles. Whether these three proteins have distinct roles in autophagy remains unclear, but they do have unique subcellular expression (2). Specifically, LC3A shows perinuclear and nuclear localization (2). The Atg8 family members share a similar structure of two amino-terminal alpha-helices and a ubiquitin-like core but are unique in aa sequence (1). LC3 utilizes a ubiquitin-like conjugation system to covalently bind to phosphatidylethanolamine (PE), also called lipidation, which is mediated by a series of steps (1, 3). Briefly, unprocessed, cytosolic LC3 (pro-LC3) is cleaved by the cysteine protease Atg4 to expose a c-terminal glycine (Gly) residue (LC3-I); the Gly is activated by E1-like enzyme Atg7, transferred to E2-like enzyme Atg3, and an E3-like complex facilitates the conjugation of LC3 with PE (LC3-II), incorporating it into the phagophore membrane during autophagosome formation (1, 3). The recruitment of LC3 to the phagophore is thought to mediate membrane elongation and closure (1, 3). Additionally, LC3 plays a role in recruiting cargo (protein aggregates, pathogens, and organelles) to autophagosomes and delivery for lysosomal degradation (1).

The process of autophagy is associated with a variety of diseases including neurodegenerative diseases, neuromuscular, tumorigenesis, and viral and bacterial infections (4). LC3 is a useful marker of autophagy in both healthy and diseased cells (4). Interestingly, LC3A has two variants (v1 and v2) which differ in N-terminal sequence due to the varying transcriptional start sites (5). One particular study found that LC3Av1, but not v2 or LC3B, was silenced in various cancer cell lines due to aberrant DNA methylation and re-expression of LC3Av1 in LC3Av1-silenced cells inhibited tumor growth, where overall findings suggest a possible tumor-suppressive role (5).

Alternative names for LC3A include Apg8, APG8a, ATG8E, Autophagy-related protein LC3 A, Autophagy-related ubiquitin-like modifier LC3 A, MAP1A/1B light chain 3 A, microtubule-associated proteins 1A/1B light chain 3, and MLP3A.

References

1. Shpilka, T., Weidberg, H., Pietrokovski, S., & Elazar, Z. (2011). Atg8: an autophagy-related ubiquitin-like protein family. Genome biology. https://doi.org/10.1186/gb-2011-12-7-226

2. Koukourakis, M. I., Kalamida, D., Giatromanolaki, A., Zois, C. E., Sivridis, E., Pouliliou, S., Mitrakas, A., Gatter, K. C., & Harris, A. L. (2015). Autophagosome Proteins LC3A, LC3B and LC3C Have Distinct Subcellular Distribution Kinetics and Expression in Cancer Cell Lines. PloS one. https://doi.org/10.1371/journal.pone.0137675

3. Weidberg, H., Shvets, E., & Elazar, Z. (2011). Biogenesis and cargo selectivity of autophagosomes. Annual review of biochemistry. https://doi.org/10.1146/annurev-biochem-052709-094552

4. Tanida, I., Ueno, T., & Kominami, E. (2004). LC3 conjugation system in mammalian autophagy. The international journal of biochemistry & cell biology. https://doi.org/10.1016/j.biocel.2004.05.009

5. Schaaf, M. B., Keulers, T. G., Vooijs, M. A., & Rouschop, K. M. (2016). LC3/GABARAP family proteins: autophagy-(un)related functions. FASEB journal : official publication of the Federation of American Societies for Experimental Biology. https://doi.org/10.1096/fj.201600698R

Long Name

Microtubule-associated Protein 1 Light Chain 3 alpha

Alternate Names

Apg8, APG8a, Apg8p3, ATG8E, LC3, MAP1ALC3, MAP1LC3A, MLP3A

Gene Symbol

MAP1LC3A

Additional LC3A Products

Product Documents for LC3A Antibody (23GB1960)

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Product Specific Notices for LC3A Antibody (23GB1960)

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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Protocols

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