Clone 1H7 recognizes an epitope in the alpha subunits of CD221, demonstrated by Western blotting (Ref.1). Clone 1H7 is reported to partically block binding of IGF-I and IGF-II to CD221 (Ref.1)
Functional Assays. Western blotting. Immunohistochemistry on Paraffin Sections: 1/10-1/40. This product does not requireprotein digestion pre-treatment of paraffin sections. Use pancreas or placenta as histologypositive control tissue. Flow Cytometry Use 10 μL of 1/10 diluted antibody to label 10^6 cells in 100 μL. Other applications not tested. Optimal dilutions are dependent on conditions and should be determined by the user.
Restrictions
For Research Use only
Concentration
1.0 mg/mL
Buffer
PBS without preservatives or stabilizers
Preservative
Without preservative
Handling Advice
Avoid repeated freezing and thawing.
Storage
4 °C/-20 °C
Storage Comment
Store the antibody prior to reconstitution at -20 °C. Following reconstitution the antibody can be stored at 2-8 °C for one month or at -20 °C for longer.
Hantel, Lewrick, Reincke, Süss, Beuschlein: "Liposomal doxorubicin-based treatment in a preclinical model of adrenocortical carcinoma." in: The Journal of endocrinology, Vol. 213, Issue 2, pp. 155-61, (2012) (PubMed).
Hantel, Lewrick, Schneider, Zwermann, Perren, Reincke, Süss, Beuschlein: "Anti insulin-like growth factor I receptor immunoliposomes: a single formulation combining two anticancer treatments with enhanced therapeutic efficiency." in: The Journal of clinical endocrinology and metabolism, Vol. 95, Issue 2, pp. 943-52, (2010) (PubMed).
CD221, a 155 kD tyrosine kinase, is composed of two extracellular alpha-subunits and two transmembrane beta-subunits. CD221 is expressed in a range of tissues, including kidney, liver, placenta, mammary gland, brain, ovary and skin. The ligands for CD221 include IGF-I and IGF-II, which bind to CD221 and activate tyrosine kinase activity, resulting in phosphorylation of several intracellular signalling proteins.Synonyms: IGF-I receptor, IGF1 Receptor, Insulin-like growth factor 1 receptor