Recombinant Anti-Drosha antibody [EPR12794] - BSA and Azide free (ab227460)
Key features and details
- Produced recombinantly (animal-free) for high batch-to-batch consistency and long term security of supply
- Rabbit monoclonal [EPR12794] to Drosha - BSA and Azide free
- Suitable for: IHC-P, WB
- Knockout validated
- Reacts with: Human
Related conjugates and formulations
Overview
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Product name
Anti-Drosha antibody [EPR12794] - BSA and Azide free
See all Drosha primary antibodies -
Description
Rabbit monoclonal [EPR12794] to Drosha - BSA and Azide free -
Host species
Rabbit -
Tested applications
Suitable for: IHC-P, WBmore details
Unsuitable for: Flow Cyt or ICC/IF -
Species reactivity
Reacts with: Human -
Immunogen
Synthetic peptide. This information is proprietary to Abcam and/or its suppliers.
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Positive control
- WB: Jurkat, HEK-293T, and HeLa cell lysates. IHC-P: Human lung adenocarcinoma tissue.
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General notes
ab227460 is the carrier-free version of ab183732.
Our carrier-free antibodies are typically supplied in a PBS-only formulation, purified and free of BSA, sodium azide and glycerol. The carrier-free buffer and high concentration allow for increased conjugation efficiency.
This conjugation-ready format is designed for use with fluorochromes, metal isotopes, oligonucleotides, and enzymes, which makes them ideal for antibody labelling, functional and cell-based assays, flow-based assays (e.g. mass cytometry) and Multiplex Imaging applications.
Use our conjugation kits for antibody conjugates that are ready-to-use in as little as 20 minutes with <1 minute hands-on-time and 100% antibody recovery: available for fluorescent dyes, HRP, biotin and gold.
This product is compatible with the Maxpar® Antibody Labeling Kit from Fluidigm, without the need for antibody preparation. Maxpar® is a trademark of Fluidigm Canada Inc.
Properties
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Form
Liquid -
Storage instructions
Shipped at 4°C. Store at +4°C. Do Not Freeze. -
Storage buffer
pH: 7.2
Constituent: PBS -
Carrier free
Yes -
Concentration information loading...
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Purity
Protein A purified -
Clonality
Monoclonal -
Clone number
EPR12794 -
Isotype
IgG -
Research areas
Associated products
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Alternative Versions
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Conjugation kits
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Isotype control
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KO cell lines
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KO cell lysates
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Positive Controls
Applications
The Abpromise guarantee
Our Abpromise guarantee covers the use of ab227460 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
Application | Abreviews | Notes |
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IHC-P |
Use at an assay dependent concentration. Perform heat mediated antigen retrieval with Tris/EDTA buffer pH 9.0 before commencing with IHC staining protocol.
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WB |
Use at an assay dependent concentration. Detects a band of approximately 159 kDa (predicted molecular weight: 159 kDa).
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Notes |
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IHC-P
Use at an assay dependent concentration. Perform heat mediated antigen retrieval with Tris/EDTA buffer pH 9.0 before commencing with IHC staining protocol. |
WB
Use at an assay dependent concentration. Detects a band of approximately 159 kDa (predicted molecular weight: 159 kDa). |
Target
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Function
Ribonuclease III double-stranded (ds) RNA-specific endoribonuclease that is involved in the initial step of microRNA (miRNA) biogenesis. Component of the microprocessor complex that is required to process primary miRNA transcripts (pri-miRNAs) to release precursor miRNA (pre-miRNA) in the nucleus. Within the microprocessor complex, DROSHA cleaves the 3' and 5' strands of a stem-loop in pri-miRNAs (processing center 11 bp from the dsRNA-ssRNA junction) to release hairpin-shaped pre-miRNAs that are subsequently cut by the cytoplasmic DICER to generate mature miRNAs. Involved also in pre-rRNA processing. Cleaves double-strand RNA and does not cleave single-strand RNA. Involved in the formation of GW bodies. -
Tissue specificity
Ubiquitous. -
Sequence similarities
Contains 1 DRBM (double-stranded RNA-binding) domain.
Contains 2 RNase III domains. -
Domain
The 2 RNase III domains form an intramolecular dimer where the domain 1 cuts the 3'strand while the domain 2 cleaves the 5'strand of pri-miRNAs, independently of each other. -
Cellular localization
Nucleus. Nucleus > nucleolus. A fraction is translocated to the nucleolus during the S phase of the cell cycle. Localized in GW bodies (GWBs), also known as P-bodies. - Information by UniProt
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Database links
- Entrez Gene: 29102 Human
- Omim: 608828 Human
- SwissProt: Q9NRR4 Human
- Unigene: 97997 Human
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Alternative names
- DROSHA antibody
- Drosha double stranded RNA specific endoribonuclease antibody
- Drosha ribonuclease type III antibody
see all
Images
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All lanes : Anti-Drosha antibody [EPR12794] (ab183732) at 1/1000 dilution
Lane 1 : Wild-type HEK-293T cell lysate
Lane 2 : DROSHA knockout HEK-293T cell lysate
Lane 3 : HeLa cell lysate
Lysates/proteins at 20 µg per lane.
Performed under reducing conditions.
Predicted band size: 159 kDa
Observed band size: 159 kDaThis data was developed using the same antibody clone in a different buffer formulation (ab183732).
Lanes 1-3: Merged signal (red and green). Green - ab183732 observed at 159 kDa. Red - loading control, ab8245 observed at 37 kDa.
ab183732 Anti-Drosha antibody [EPR12794] was shown to specifically react with Drosha in wild-type HEK293T cells. Loss of signal was observed when knockout cell line ab266217 (knockout cell lysate ab257171) was used. Wild-type and Drosha knockout samples were subjected to SDS-PAGE. ab183732 and Anti-GAPDH antibody [6C5] - Loading Control (ab8245) were incubated overnight at 4°C at 1 in 1000 dilution and 1 in 20000 dilution respectively. Blots were developed with Goat anti-Rabbit IgG H&L (IRDye® 800CW) preadsorbed (ab216773) and Goat anti-Mouse IgG H&L (IRDye® 680RD) preadsorbed (ab216776) secondary antibodies at 1 in 10000 dilution for 1 hour at room temperature before imaging.
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This IHC data was generated using the same anti-Drosha antibody clone, EPR12794, in a different buffer formulation (cat# ab183732).
Immunohistochemical analysis of paraffin-embedded Human lung adenocarcinoma tissue labeling Drosha with ab183732 at 1/100 dilution followed by prediluted HRP Polymer for Rabbit IgG. Counter stained with Hematoxylin.
Perform heat mediated antigen retrieval with EDTA buffer pH 9 before commencing with IHC staining protocol.
Protocols
To our knowledge, customised protocols are not required for this product. Please try the standard protocols listed below and let us know how you get on.
Datasheets and documents
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Datasheet download
Certificate of Compliance
References (1)
ab227460 has been referenced in 1 publication.
- Silveyra P et al. Knockdown of Drosha in human alveolar type II cells alters expression of SP-A in culture: a pilot study. Exp Lung Res 40:354-66 (2014). WB ; Human . PubMed: 25058539