Hsp27/HSPB1 (HSPB1) Antibody – Mouse Monoclonal

This gene encodes a member of the small heat shock protein (HSP20) family of proteins. In response to environmental stress, the encoded protein translocates from the cytoplasm to the nucleus and functions as a molecular chaperone that promotes the correct folding of other proteins. This protein plays an important role in the differentiation of a wide variety of cell types. Expression of this gene is correlated with poor clinical outcome in multiple human cancers, and the encoded protein may promote cancer cell proliferation and metastasis, while protecting cancer cells from apoptosis. Mutations in this gene have been identified in human patients with Charcot-Marie-Tooth disease and distal hereditary motor neuropathy. [provided by RefSeq, Aug 2017]

HSP27: a small heat shock protein that is regulated both transcriptionally and posttranslationally. Modulates actin polymerization and reorganization. Its expression level increases several-fold in response to stress and is phosphorylated by MAPKAP kinase 2. Cytoplasmic in interphase cells. Colocalizes with mitotic spindles in mitotic cells. Translocates to the nucleus during heat shock.

Protein type: Chaperone; Motility/polarity/chemotaxis; Heat shock protein

Chromosomal Location of Human Ortholog: 7q11.23

Cellular Component: proteasome complex; extracellular space; focal adhesion; cytoskeleton; cytoplasm; plasma membrane; spindle; cytosol; Z disc; nucleus

Molecular Function: protein kinase C inhibitor activity; identical protein binding; ubiquitin binding; protein binding; protein kinase C binding; protein kinase binding

Biological Process: positive regulation of tumor necrosis factor biosynthetic process; response to virus; positive regulation of blood vessel endothelial cell migration; response to unfolded protein; positive regulation of interleukin-1 beta production; retinal homeostasis; positive regulation of angiogenesis; negative regulation of protein kinase activity; gene expression; vascular endothelial growth factor receptor signaling pathway; cell motility; regulation of I-kappaB kinase/NF-kappaB cascade; regulation of translational initiation; negative regulation of apoptosis

Disease: Neuronopathy, Distal Hereditary Motor, Type Iib; Charcot-marie-tooth Disease, Axonal, Type 2f