Anti-Drosha Antibody, clone 1B19 ZooMAb^® Rabbit Monoclonal

Ribonuclease 3 (UniProt: Q9NRR4; also known as EC:3.1.26.3, Protein Drosha, Ribonuclease III, RNase III, p241) is encoded by the Drosha (also known as RN3, RNASE3L, RNASEN) gene (Gene ID: 29102) in human. Drosha is a ubiquitously expressed Ribonuclease III double-stranded (ds) RNA-specific endoribonuclease that is involved in the initial step of microRNA (miRNA) biogenesis. It is a component of the microprocessor complex, or pri-miRNA processing protein complex, which is composed of Drosha and DGCR8 (Pasha). Within this complex, Drosha cleaves the 3′ and 5′ strands of a stem-loop in pri-miRNAs to release hairpin-shaped pre-miRNAs that are subsequently cut by the cytoplasmic DICER to generate mature miRNAs. Drosha is shown to cleaves only the double-strand RNA and does not cleave single-strand RNA. The ectopic expression of Drosha is reported to play a significant role in cancer progression and is observed in a variety of tumors. Higher expression of Drosha in reported in non-small cell lung cancer, squamous cell carcinomas, and basal cell carcinomas. It is associated with advanced stage of these tumors. Overexpression of Drosha is observed in the adrenocortical carcinomas. This ZooMAb^® recombinant monoclonal antibody, generated by our propriety technology, offers significantly enhanced specificity, affinity, reproducibility, and stability over conventional monoclonals. (Ref.: Chehade, M., et al. (2020). Cancers (Basel). 12(8); 2198; Nguyen, TA., et al. (2015). Cell. 161(6); 1374-1387; Wu, H., et al. (2000). J. Biol. Chem. 275(47); 36957-36965).

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.

KLH-conjugated linear peptide corresponding to 22 amino acids from the N-terminal region of Human Drosha protein

Quality Control Testing

Evaluated by Western Blotting in SH-SY5Y cell lysate.

Western Blotting Analysis: A 1:1,000 dilution of this antibody detected Drosha in SH-SY5Y cell lysate.

Tested Applications

Western Blotting Analysis: A 1:1,000 dilution from a representative lot detected Drosha in HepG2 cell lysate.

Immunohistochemistry (Paraffin) Analysis: A 1:100 dilution from a representative lot detected Drosha in human cerebral cortex and human testis tissue sections.

Immunocytochemistry Analysis: A 1:100 dilution from a representative lot detected Drosha in HepG2 cells.

Affinity Binding Assay: A representative lot of this antibody bound Drosha peptide with a KD of 9.4 x 10-8 in an affinity binding assay.

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

Clone 1B19 is a ZooMAb^® Rabbit recombinant monoclonal antibody that specifically detects DROSHA. it targets an epitope with 22 amino acids from the N-terminal region.

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

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.

Reconstitute lyophilized antibody pellet with 25μL of ultrapure water or Phosphate Buffered Saline (PBS). Please refer to our reconstitution protocol and the specific application guidance on the suggested starting dilutions and sample type.

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.