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Anti-ASTN2 Antibody, clone 2E8 ZooMAb® Rabbit Monoclonal

enhanced validationgreener alternative

recombinant, expressed in HEK 293 cells

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biological source


Quality Level


expressed in HEK 293 cells



antibody form

purified antibody

antibody product type

primary antibodies


2E8, monoclonal
recombinant monoclonal

product line

ZooMAb® learn more



mol wt

calculated mol wt ~148.24 kDa
observed mol wt ~105 kDa

species reactivity

mouse, human

species reactivity (predicted by homology)

rat, bovine, monkey


antibody small pack of 25 μL

greener alternative product characteristics

Waste Prevention
Designing Safer Chemicals
Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

enhanced validation

recombinant expression
Learn more about Antibody Enhanced Validation


affinity binding assay: suitable
flow cytometry: suitable
immunocytochemistry: suitable
western blot: suitable



UniProt accession no.

greener alternative category

shipped in


storage temp.


target post-translational modification


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2E8, monoclonal, recombinant monoclonal


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General description

We are committed to bringing you greener alternative products, which adhere to one or more of The 12 Principles of Green Chemistry.This antibody is Preservative-free, produced without the harm or sacrifice of animals and exceptionally stable to allow for ambient shipping and storage if needed and thus aligns with "Waste Prevention", "Designing Safer Chemicals" and "Design for Energy Efficiency". Click here for more information.
ZooMAb antibodies represent an entirely new generation of recombinant monoclonal antibodies.

Each ZooMAb antibody is manufactured using our proprietary recombinant expression system, purified to homogeneity, and precisely dispensed to produce robust and highly reproducible lot-to-lot consistency. Only top-performing clones are released for use by researchers. Each antibody is validated for high specificity and affinity across multiple applications, including its most commonly used application. ZooMAb antibodies are reliably available and ready to ship when you need them.


Clone 2E8 is a ZooMAb® rabbit recombinant monoclonal antibody that specifically detects Astrotactin-2. It targets an epitope within 18 amino acids from the C-terminal half, lumenal domain.


KLH-conjugated linear peptide corresponding to 18 amino acids from the C-terminal half, lumenal domain.


Quality Control Testing

Evaluated by Western Blotting in Mouse brain membrane preparations.

Western Blotting Analysis: A 1:10,000 dilution of this antibody detected ASTN2 in Mouse brain membrane preparations.

Tested Applications

Affinity Binding Assay:: A representative lot of this antibody bound ASTN2 peptide with a KD of 1.0 x 10-12 in an affinity binding assay.

Flow Cytometry Analysis: 1 μg from a representative lot detected ASTN2 in one million A431 cells.

Immunocytochemistry Analysis: A 1:100 dilution from a representative lot detected ASTN2 in A431 cells.

Note: Actual optimal working dilutions must be determined by end user as specimens, and experimental conditions may vary with the end user
Anti-ASTN2, clone 2E8 ZooMAb®, Cat. No. ZRB1283, is a recombinant Rabbit monoclonal antibody that specifically targets Astrotactin-2 and is tested for use in Affinity Binding Assay, Flow Cytometry, Immunocytochemistry, and Western Blotting.

Target description

Astrotactin-2 (UniProt: O75129; also known as ASTN2) is encoded by the ASTN2 (also known as KIAA0634) gene (Gene ID: 23245) in human. Astrotactin-2 is a multi-pass membrane protein that is synthesized with a signal peptide (aa 1-49), which is subsequently cleaved off and the mature form has two lumenal domains (aa 50-206 and 456-1339), two transmembrane domains (aa 207-227 and 435-455) and one cytoplasmic domain (aa 228-434). It also contains three EGF-like domains and one fibronectin type III domain. Its highest expression is observed in the cerebellum and lower levels of expression are shown in hippocampus, cortex, and olfactory bulb. It localizes mostly to vesicles inside neural cells that may give a punctate antibody staining pattern in the soma and along neuronal processes. Astrotactin-2 interacts with Astrotactin-1 and mediates its recycling to the anterior pole of the cell membrane in migrating neurons. It is shown to be a key regulator of dynamic trafficking of synaptic proteins. It associates with recycling and degradative vesicles in cerebellar neurons and promotes endocytic trafficking and degradation of synaptic proteins. This ZooMAb® recombinant monoclonal antibody, generated by our propriety technology, offers significantly enhanced specificity, affinity, reproducibility, and stability over conventional monoclonals. (Ref.: Behestia, H., et al. (2018). Proc. Natl. Acad. Sci. USA. 115(41); E9717 E9726; Ni, T. et al (2016). Open Biol. 6; 160053).

Physical form

Purified recombinant mouse monoclonal antibody IgG, lyophilized in PBS, 5% Trehalose, normal appearance a coarse or translucent resin. Contains no biocide or preservatives, such as azide, or any animal by-products. Larger pack sizes provided as multiples of 25 μL.


300 μg/mL after reconstitution at 25 μL per vial. Please refer to guidance on suggested starting dilutions and/or titers per application and sample type.

Storage and Stability

Recommend storage of lyophilized product at 2-8°C; Before reconstitution, micro-centrifuge vials briefly to spin down material to bottom of the vial; Reconstitute each vial by adding 25 μL of filtered lab grade water or PBS; Reconstituted antibodies can be stored at 2-8°C, or -20°C for long term storage. Avoid repeated freeze-thaws.

Legal Information

ZooMAb is a registered trademark of Merck KGaA, Darmstadt, Germany


Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Storage Class

11 - Combustible Solids



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