Store as concentrated solution. Centrifuge briefly prior to opening vial. For short-term storage (1-2 weeks), store at 4ºC. For long-term storage, aliquot and store at -20ºC or below. Avoid multiple freeze-thaw cycles.
1 mg/ml (Please refer to the vial label for the specific concentration.)
Recombinant mouse Hsp25
Protein A purified
For laboratory use only. Not for any clinical, therapeutic, or diagnostic use in humans or animals. Not for animal or human consumption.
Cytoplasmic in interphase cells. Colocalizes with mitotic spindles in mitotic cells. Translocates to the nucleus during heat shock.
In response to adverse changes in their environment, cells from many organisms increase the expression of a class of proteins referred to as heat shock or stress proteins. One class of stress proteins, termed the ""small heat shock proteins"" is comprised of a diverse group of proteins from ~15 to >30kDa, with a single form found in yeast and human cells and multiple related forms found in higher plants. A direct relationship between elevated stress protein expression and neoplasia has been suggested from studies on estrogen-induced proteins in breast cancer cells. In addition, Hsp27 exhibits rapid increased phosphorylation in response to various mitogens, tumor promoters (e.g. phorbol esters) and calcium ionophores. The expression of a 24kDa protein was shown to correlate with steroid hormone receptors in cell lines, organs , and tumors. The 24kDa estrogen-induced protein was found to be expressed at high levels in carcinoma of the breast. Another study has suggested that the levels of Hsp27 correlate with endometrial adenocarcinomas. Interestingly, the regulation of human Hsp27 by estrogens and heat shock is reminiscent of the ecdysteroid and heat shock activation of the drosophila Hsp20 genes.