Description
General description
Calculated 52 kDa Observed ~57 kDa
U1 small nuclear ribonucleoprotein 70 kDa (U1-70K) is one of three specific proteins found within the U1 snRNP core, which includes at least seven core proteins found in all U snRNPs and three specific proteins; U1-70K, U1-A, and U1-C. U1-70K is involved in mediating pre-mRNA splicing through binding the loop I region of U1-snRNA with its RPM (RNA recognition motif) binding domain. In addition, its RNA binding domain, U1-70K also contains two argine-rich regions, accented with acidic or serine residues, that is thought to have trans-acting functions. Alternative splicing results in 4 known isoforms. Truncated forms of U1-70K are unable to bind RNA.
Immunogen
Epitope: C-terminal domain
Recombinant protein corresponding to C-terminal domain of human U1-70K.
Application
Immunocytochemistry Analysis: A 1:500 dilution of a representative lot of this antibody has been shown to detect U1-70K in NIH/3T3, A431, and HeLa cells.
Research Category
Epigenetics & Nuclear Function
Research Sub Category
RNA Metabolism & Binding Proteins
Use Anti-U1-70K Antibody, clone 9C4.1 (Mouse Monoclonal Antibody) validated in WB, ICC to detect U1-70K also known as small nuclear ribonucleoprotein 70kDa (U1).
Biochem/physiol Actions
This antibody recognizes U1-70K at the C-terminal domain.
Physical form
Format: Purified
Protein G Purified
Purified mouse monoclonal IgG2aκ in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide.
Preparation Note
Stable for 1 year at 2-8°C from date of receipt.
Analysis Note
Control
HeLa cell lysate
Evaluated by Western Blot in HeLa cell lysate.
Western Blot Analysis: 0.5 µg/mL of this antibody detected U1-70K on 10 µg of HeLa cell lysate.
Other Notes
Concentration: Please refer to the Certificate of Analysis for the lot-specific concentration.
Disclaimer
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.
