NUMA1 or NUMA protein is an interesting and major component of the nuclear matrix of eukaryotic cells. NUMA1 is a highly abundant protein component that appears to serve a non-structural role but is needed for mitotic spindle poles and centrosome formation as well as a linker of microtubules. These functions are important for proper cytokinesis and the setup of the proper polarity axis during cell division. NUMA1 resides in the nuclear matrix during interphase. NUMA1 dissociates from condensing chromosomes during early prophase, and relocates to the spindle poles via a dynein/dynamin complex, and it remains there until the anaphase onset. Thus NUMA1 then can be found in the nucleus during cell rest and cytoplasmically and centrosome localized during cytokinesis. NUMA1 phosphorylation occurs by CDK1 and phosphorylation increases solubility and promotes association with dynein and subsequent translocation to the spindle poles.

~230 kDa observed

Epitope: Tail Region

KLH-conjugated linear peptide corresponding to the tail region of human NUMA1 phosphorylated at Thr2055.

Peptide Inhibition Analysis: A 1:500 dilution from a representative lot blocked NUMA1 phosphorylated at Thr2055 in Hydroxyurea treated HeLa nuclear extract.

Research Category
Cell Structure

Research Sub Category
Adhesion (CAMs)

This Anti-phospho-NUMA1 Antibody (Thr2055) is validated for use in Western Blotting and Peptide Inhibition Assay for the detection of phospho-NUMA1 (Thr2055).

Affinity purified

Purified rabbit polyclonal in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide.

Stable for 1 year at 2-8°C from date of receipt.

Evaluated by Western Blotting in HeLa nuclear extract and Hydroxyurea treated HeLa nuclear extract.

Western Blotting Analysis: A 1:500 dilution of this antibody detected NUMA1 phosphorylated at Thr2055 in 10 µg of HeLa nuclear extract and Hydroxyurea treated HeLa nuclear extract.

Concentration: Please refer to lot specific datasheet.

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