Heat shock proteins (HSP) are expressed in response to various biological stresses, including high temperatures. There are several major families of HSPs including HSP70, HSP90 and HSP100. HSP27 also referred to as the Estrogen-Regulated 24K protein and HSP28, is one of several small heat shock proteins (HSP) produced by all organisms studied. HSP27 synthesis is induced by elevated temperature, as well as estrogen in hormone responsive cells. Interestingly, human HSP27 also shares greater than 50% homology with low molecular weight Drosophila HSP's and mammalian a-crystalline lens protein. Because of the estrogen responsive nature of HSP27, this protein has been studied extensively in human estrogen responsive tissues such as cervix, endometrium and breast tissue. This work has led to the suggestion that HSP27 may be a useful marker in classifying various hormone sensitive tumors.
28 kDa heat shock protein; epididymis secretory protein Li 102; Estrogen-regulated 24 kDa protein; Heat shock 27 kDa protein; heat shock 27kD protein 1; heat shock 27kDa protein 1; heat shock protein 27 kDa beta-1; Heat shock protein beta-1; HSP 27; HSP25; HSP27; HSPB1; SRP27; Stress-responsive protein 27
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