LC3B Antibody (1251B) - Azide and BSA Free

Novus Biologicals, part of Bio-Techne | Catalog # NBP2-80831

Recombinant Monoclonal Antibody
Novus Biologicals, part of Bio-Techne
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NBP2-80831
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Catalog #
BSA Free
NBP2-60735
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Key Product Details

Validated by

Knockout/Knockdown, Biological Validation

Species Reactivity

Validated:

Human, Mouse, Rat

Applications

Flow (Intracellular), Immunocytochemistry/ Immunofluorescence, Immunohistochemistry, Immunohistochemistry-Paraffin, Knockout Validated, Simple Western, Western Blot

Label

Unconjugated

Antibody Source

Recombinant Monoclonal Rabbit IgG Clone # 1251B

Format

Azide and BSA Free

Concentration

1 mg/ml

View all LC3B Antibodies »

Product Summary for LC3B Antibody (1251B) - Azide and BSA Free

Immunogen

Recombinant monoclonal LC3B Antibody (1251B) was made to a synthetic peptide made to an N-terminal portion of the human LC3B protein sequence (between residues 1-100). [UniProt# Q9GZQ8].

Localization

LC3-I is cytoplasmic. LC3-II binds to the autophagic membranes.

Clonality

Monoclonal

Host

Rabbit

Isotype

IgG

Theoretical MW

14.688 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.

Scientific Data Images for LC3B Antibody (1251B) - Azide and BSA Free

Western Blot: LC3B Antibody (1251B)Azide and BSA Free [NBP2-80831]

Western Blot: LC3B Antibody (1251B)Azide and BSA Free [NBP2-80831]

Western Blot: LC3B Antibody (1251B) - Azide and BSA Free [NBP2-80831] - Total protein from HeLa and Neuro2A cells treated with or without 50 uM chloroquine (CQ) for 24 hours was separated on a 4-15% gel by SDS-PAGE, transferred to 0.2 um PVDF (Polyvinylidene difluoride) membrane and blocked in 5% non-fat milk in TBST (Tris-buffered saline, 0.1% Tween 20). The membrane was probed with 12.0 ug/ml anti-LC3B Antibody (1251B) [Catalog # NBP2-60735] in 1% non-fat milk in TBST and detected with an anti-rabbit HRP secondary antibody using chemiluminescence. Image from the standard format of this antibody.
Immunocytochemistry/ Immunofluorescence: LC3B Antibody (1251B) - Azide and BSA Free [NBP2-80831]

Immunocytochemistry/ Immunofluorescence: LC3B Antibody (1251B) - Azide and BSA Free [NBP2-80831]

Immunocytochemistry/Immunofluorescence: LC3B Antibody (1251B) - Azide and BSA Free [NBP2-80831] - HeLa cells were treated with 50uM CQ (Chloroquine) overnight, fixed for 10 minutes using 10% formalin and then permeabilized for 5 minutes using 1X PBS + 0.05% Triton X-100. The cells were incubated with anti- [Catalog # NBP2-60735] at 2 ug/ml overnight at 4C and detected with an anti-rabbit DyLight 488 (Green) at a 1:500 dilution. Nuclei were counterstained with DAPI (Blue). Cells were imaged using a 40X objective. Image from the standard format of this antibody.
Immunohistochemistry: LC3B Antibody (1251B) - Azide and BSA Free [NBP2-80831]

Immunohistochemistry: LC3B Antibody (1251B) - Azide and BSA Free [NBP2-80831]

Immunohistochemistry: LC3B Antibody (1251B) - Azide and BSA Free [NBP2-80831] - Analysis of a FFPE (Formalin-Fixed Paraffin-Embedded) tissue section of mouse brain using anti-LC3B antibody (clone 1251B) [Catalog # NBP2-60735] at 5ug/ml concentration (1:200 dilution). The primary antibody binding to LC3 in cells was detected using HRP
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Applications for LC3B Antibody (1251B) - Azide and BSA Free

Application
Recommended Usage

Flow (Intracellular)

1 ug/ml

Immunocytochemistry/ Immunofluorescence

1 - 25 ug/ml

Immunohistochemistry

2 - 5 ug/ml

Immunohistochemistry-Paraffin

2 - 5 ug/ml

Simple Western

5 ug/ml

Western Blot

0.1 ug/ml
Application Notes
Western blot bands are seen at ~19 kDa, representing LC3-I, and ~17 kDa, representing LC3-II.
Please Note: Optimal dilutions of this antibody should be experimentally determined.

Formulation, Preparation, and Storage

Purification

Protein A or G purified

Formulation

PBS

Format

Azide and BSA Free

Preservative

No Preservative

Concentration

1 mg/ml

Shipping

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

Stability & Storage

Store at 4C short term. Aliquot and store at -20C long term. Avoid freeze-thaw cycles.

Background: LC3B

Autophagy (macroautophagy) is a catabolic process which targets intracellular components such as proteins and organelles for degradation. Originally described as a bulk degradation process, current research supports its selective nature (1). Selective autophagy targets specific cellular components for degradation including the endoplasmic reticulum (2) (ER-phagy), mitochondria (3) (mitophagy), peroxisomes (3) (pexophagy), ribosomes (4) (ribophagy) and bacteria (5) (xenophagy). Autophagy relies on a newly formed phagophore, a membrane structure which elongates, sequesters cellular content, and fuses to form a double membrane vesicle known as the autophagosome. Fusion of autophagosomes with lysosomes gives rise to the autophagolysosome, where cellular components are degraded by lysosome hydrolases (1).

Autophagic flux is supported by autophagy-related proteins (Atgs) initially identified in yeast (6,7). The core autophagy machinery is comprised of 17 Atg proteins that play specific roles in autophagosome formation. Among these Atg proteins, Atg8 is not only involved in autophagosome formation but also functions in cargo selection. In mammals, several Atg8 homologues have been identified including microtubule-associated protein 1 light chain 3 alpha, beta and gamma - LC3A, LC3B, and LC3C (8) respectively, as well as GABA type A receptor-associated protein (GABARAP), GABARAP-Like1, and GABARAP-Like2 (9). LC3 (predicted molecular weight 14kD) is ubiquitously expressed and undergoes posttranslational processing after synthesis. First, the cysteine protease Atg4 cleaves a carboxy terminal sequence to generate the cytosolic form LC3-I. Next, E1-like (Atg7) and E2-like (Atg3) enzymes conjugate phosphatidylethanolamine to the newly exposed carboxyterminal glycine, generating LC3-II. Finally, the Atg12-Atg5-Atg16L1 complex participates in LC3 lipidation and autophagosome formation (10). LC3B-I to LC3B-II conversion correlates with autophagosome number and is considered the best marker to monitor autophagy.

References

1. Yu, L., Chen, Y., & Tooze, S. A. (2018). Autophagy pathway: Cellular and molecular mechanisms. Autophagy. https://doi.org/10.1080/15548627.2017.1378838

2. Forrester, A., De Leonibus, C., Grumati, P., Fasana, E., Piemontese, M., Staiano, L., ... Settembre, C. (2019). A selective ER -phagy exerts procollagen quality control via a Calnexin- FAM 134B complex. The EMBO Journal. https://doi.org/10.15252/embj.201899847

3. He, X., Zhu, Y., Zhang, Y., Geng, Y., Gong, J., Geng, J., ... Zhong, H. (2019). RNF34 functions in immunity and selective mitophagy by targeting MAVS for autophagic degradation. The EMBO Journal. https://doi.org/10.15252/embj.2018100978

4. Mathai, B., Meijer, A., & Simonsen, A. (2017). Studying Autophagy in Zebrafish. Cells. https://doi.org/10.3390/cells6030021

5. Losier, T. T., Akuma, M., McKee-Muir, O. C., LeBlond, N. D., Suk, Y., Alsaadi, R. M., ... Russell, R. C. (2019). AMPK Promotes Xenophagy through Priming of Autophagic Kinases upon Detection of Bacterial Outer Membrane Vesicles. Cell Reports. https://doi.org/10.1016/j.celrep.2019.01.062

6. Nakatogawa, H., Suzuki, K., Kamada, Y., & Ohsumi, Y. (2009). Dynamics and diversity in autophagy mechanisms: Lessons from yeast. Nature Reviews Molecular Cell Biology. https://doi.org/10.1038/nrm2708

7. Tsukada, M., & Ohsumi, Y. (1993). Isolation and characterization of autophagy-defective mutants of Saccharomyces cerevisiae. FEBS Letters. https://doi.org/10.1016/0014-5793(93)80398-E

8. Wild, P., McEwan, D. G., & Dikic, I. (2014). The LC3 interactome at a glance. Journal of Cell Science. https://doi.org/10.1242/jcs.140426

9. Igloi, G. L. (2001). Cloning, expression patterns, and chromosome localization of three human and two mouse homologues of GABAA receptor-associated protein. Genomics. https://doi.org/10.1006/geno.2001.6555

10. Glick, D., Barth, S., & Macleod, K. F. (2010). Autophagy: Cellular and molecular mechanisms. Journal of Pathology. https://doi.org/10.1002/path.2697

Long Name

Microtubule-associated Protein 1 Light Chain 3 beta

Alternate Names

Apg8b, ATG8F, LC3II, MAP1LC3B

Gene Symbol

MAP1LC3B

Additional LC3B Products

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Product Specific Notices for LC3B Antibody (1251B) - Azide and BSA Free

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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