Recombinant Human Heat shock protein 105 kDa (HSPH1), Truncated

Uniprot Id

Q92598

Target Species

Human

Target Name

HSPH1

Target Full Name

Heat shock protein 105 kDa

Target Function

Acts as a nucleotide-exchange factor (NEF) for chaperone proteins HSPA1A and HSPA1B, promoting the release of ADP from HSPA1A/B thereby triggering client/substrate protein release. Prevents the aggregation of denatured proteins in cells under severe stress, on which the ATP levels decrease markedly. Inhibits HSPA8/HSC70 ATPase and chaperone activities.

Target Subcellular Location

Cytoplasm.

Target Protein Families

Heat shock protein 70 family

Target Tissue Specificity

Highly expressed in testis. Present at lower levels in most brain regions, except cerebellum. Overexpressed in cancer cells.

Target Synonyms

Antigen NY CO 25; Antigen NY-CO-25; DKFZp686M05240; Heat shock 105kD alpha; Heat shock 105kD; Heat shock 105kD beta; Heat shock 105kDa protein 1; Heat shock 105kDa protein; Heat shock 105kDa/110kDa protein 1 ; Heat shock 110 kDa protein; Heat shock 110kDa protein; Heat shock protein 105 kDa; HS105_HUMAN; HSP105; HSP105A; HSP105B; HSP110; HSPH 1; Hsph1; KIAA0201; NY CO 25

Target Background

This gene encodes a member of the heat shock protein 70 family of proteins. The encoded protein functions as a nucleotide exchange factor for the molecular chaperone heat shock cognate 71 kDa protein (Hsc70). In addition, this protein plays a distinct but related role as a holdase that inhibits the aggregation of misfolded proteins, including the cystic fibrosis transmembrane conductance regulator (CFTR) protein. Elevated expression of this protein has been observed in numerous human cancers.