All Photos(17)



Anti-TMEM261 Antibody, clone 2C22 ZooMAb® Rabbit Monoclonal

enhanced validationgreener alternative

recombinant, expressed in HEK 293 cells

Distal membrane-arm assembly complex protein 1, Transmembrane protein 261

biological source


Quality Level


expressed in HEK 293 cells



antibody form

purified antibody


recombinant monoclonal

product line

ZooMAb® learn more



mol wt

calculated mol wt 12.26 kDa
observed mol wt ~12 kDa

species reactivity


species reactivity (predicted by homology)



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
immunocytochemistry: suitable
immunohistochemistry: suitable
western blot: suitable



UniProt accession no.

greener alternative category

shipped in


storage temp.


General description

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.

Learn more about ZooMAb here.


Clone 2C22 is a ZooMAb rabbit recombinant monoclonal antibody that specifically detects human Transmembrane protein 261 (TMEM261). It targets an epitope within 24 amino acids from the N-terminal region.


KLH-conjugated linear peptide corresponding to 24 amino acids from the N-terminal region of human.


Quality Control Testing
Western Blotting Analysis: A 1:10,000 dilution of this antibody detected TMEM261 in HeLa cell lysate.Tested applicationsWestern Blotting Analysis: A 1:10,000 dilution from a representative lot detected TMEM261 in U937 cell lysate.Affinity Binding Assay: A representative lot of this antibody bound TMEM261 peptide with a KD of 1.0 x 10-12 in an affinity binding assay.Immunohistochemistry (Paraffin) Analysis: A 1:100 dilution from a representative lot detected TMEM261 in human urinary bladder tissue sections.Immunocytochemistry Analysis: A 1:100 dilution from a representative lot detected TMEM261 in HeLa, HUVEC, and A431cells.Note: Actual optimal working dilutions must be determined by end user as specimens, and experimental conditions may vary with the end user
Anti-TMEM261, clone 2C22 ZooMAb, Cat. No. ZRB1060, is a recombinant Rabbit monoclonal antibody that specifically targetsTMEM261 and is tested for use in Affinity Binding Assay, Immunocytochemistry, Immunohistochemistry, and Western Blotting.

Target description

Distal membrane-arm assembly complex protein 1 (UniProt: Q96GE9; also known as Transmembrane protein 261; TMEM261) is encoded by the DMAC1 (also known as C9orf123, TMEM261) gene (Gene ID: 90871) in human. TMEM261 is a multi-pass membrane protein that displays ubiquitous expression in humans. Its two transmembrane regions are localized to amino acids 52-69 and 82-104. TMEM261 is localized to inner mitochondrial membrane and is required for the assembly of the mitochondrial NADH:ubiquinone oxidoreductase complex (complex I). It is involved in the assembly of the distal region of complex I. Knockout of TMEM261 leads to specific and severe complex I assembly defects. This ZooMAb recombinant monoclonal antibody, generated by our propriety technology, offers significantly enhanced specificity, affinity, reproducibility, and stability over conventional monoclonals. (Ref.: Stroud, DA., et al. (2016). Nature. 538(7623); 123-126).

Physical form

Purified recombinant rabbit monoclonal antibody IgG, lyophilized in PBS with 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 Code

11 - Combustible Solids



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service