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Anti-Rab8A Antibody, clone 1N22 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


1N22, recombinant monoclonal


1N22 Clone

product line

ZooMAb® learn more



mol wt

calculated mol wt 23.67 kDa
observed mol wt ~25 kDa

purified by

using Protein A

species reactivity

human, rat

species reactivity (predicted by homology)

monkey, mouse, canine, bovine


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
immunohistochemistry (formalin-fixed, paraffin-embedded sections): suitable
western blot: suitable



epitope sequence


Protein ID accession no.

UniProt accession no.

greener alternative category

shipped in


storage temp.


target post-translational modification


Gene Information

human ... RAB8A(4218)

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This Item
biological source


biological source


biological source


biological source










species reactivity

human, rat

species reactivity


species reactivity


species reactivity

mouse, human

antibody form

purified antibody

antibody form

purified antibody

antibody form

purified antibody

antibody form

purified antibody

Gene Information

human ... RAB8A(4218)

Gene Information

human ... RARG(5916)

Gene Information


Gene Information

human ... ATP6AP2(10159)

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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 1N22 is a ZooMAb® Rabbit recombinant monoclonal antibody that specifically detects Rab8A. It targets an epitope within 17 amino acids from the C-terminal region.


KLH-conjugated linear peptide corresponding to 17 amino acids from the C-terminal region of human Ras-related protein Rab-8A (Rab8A).


Quality Control Testing

Evaluated by Western Blotting in MCF-7 cell lysate.

Western Blotting Analysis: A 1:3,000 dilution of this antibody detected Rab8A in MCF-7 cell lysate.

Tested applications

Western Blotting Analysis: A 1:3,000 dilution from a representative lot detected Rab8A in lysates from PC12 and HCT116 cells and from Human kidney tissue lysate.

Immunohistochemistry (Paraffin) Analysis: A 1:1,000 dilution from a representative lot detected Rab8A in human kidney tissue sections.

Immunocytochemistry Analysis: A 1:300 dilution from a representative lot detected Rab8A in MCF-7 cells.

Note: Actual optimal working dilutions must be determined by end user as specimens, and experimental conditions may vary with the end user

Target description

Ras-related protein Rab-8A (UniProt: P61006; also known as Oncogene c-mel) is encoded by the RAB8A (also known as MEL, RAB8) gene (Gene ID: 4218) in human. The small GTP-binding protein Rab8 is involved in basolateral transport in epithelial cells and in dendritic transport in neurons. It is also involved in trafficking of neurotransmitter receptors in postsynaptic terminal and the formation of outer photoreceptor segments in the retina. Rab8A is a ubiquitous, lipid-anchor protein that functions in multiple recycling pathways through various effectors. It is synthesized with a propeptide (aa 205-207) that is subsequently removed to generate the mature form. In its GDP-bound form, it is present in the perinuclear region and in GTP-bound form it displays polarized distribution to distal regions of cell protrusions. Together with MYO5B and RAB11A, it participates in epithelial cell polarization. It undergoes phosphorylation at threonine 72 by leucine-rich repeat kinase 2 (LRRK2) in its switch II helix, which prevents the association of Rab regulatory proteins, including CHM, CHML, and Rab GDP dissociation inhibitors GDI1 and GDI2. Non-phosphorylated form of Rab8A is shown to be predominantly localized in the cytoplasm whereas phosphorylated Rab8A localizes to the membrane. Rab8a is also reported to recruit PI3K and together they function to regulate Akt signal transduction generated by toll like receptor 4 (TLR4). It binds to two residues in the receptor binding domain (RBD) of PI3K that are reported to be critical and necessary for Ras binding to PI3K . This ZooMAbZooMAb® recombinant monoclonal antibody, generated by our propriety technology, offers significantly enhanced specificity, affinity, reproducibility, and stability over conventional monoclonals. (Ref.: Waschbüsch, D., et al. (2020). Structure. 28(4); 406-417; Sato, T., et al. (2014). J. Cell Sci. 127(2); 422-431; Luo, L., et al. (2014). Nat. Commun. 5; Article 4407; Hattula, K., et al., (2002). Mol. Biol. Cell. 13(9); 3268-3280).

Physical form

Purified recombinant rabbit monoclonal antibody IgG, lyophilized in PBS, 5% Trehalose, normal appearance a coarse or translucent resin. The PBS/trehalose components in the ZooMAb formulation can have the appearance of a semi-solid (bead like gel) after lyophilization. This is a normal phenomenon. Please follow the recommended reconstitution procedure in the data sheet to dissolve the semi-solid, bead-like, gel-appearing material. The resulting antibody solution is completely stable and functional as proven by full functional testing. 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

13 - Non Combustible Solids




Not applicable


Not applicable

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