Home   >    Proteins   >   Signaling Proteins

HSP40 Protein

Recombinant full-length human HSP40 was expressed in E. coli cells using an N-terminal GST tag.
Catalog No. H32-54G

Shop Online

Catalog No. Pack Size Price (USD)
H32-54G-50 50 ug $435
H32-54G-20 20 ug $215
H32-54G-BULK BULK Contact Us  


HSP40 is a member of heat shock proteins (HSPs) which are synthesized in cells in response to heat shock and other metabolic stresses and provide a transient state of thermotolerance. HSP40 is localized faintly throughout the cell in non-heat-shocked cells and accumulates in the nuclei and nucleoli in heat-shocked cells (1). The intracellular localization of HSP40 is very similar to that of HSP70. Overexpression of HSP40 reduces aggregate formation and suppresses apoptosis in a neuronal cell model of spinal and bulbar muscular atrophy (inherited neurodegenerative diseases caused by polyglutamine expansion) (2).

Gene Aliases:


Genbank Number:


1. Hattori, H. et al: Intracellular localization and partial amino acid sequence of a stress-inducible 40-kDa protein in HeLa cells. Cell Struct. Funct. 1992;17(1):77-86.

2. Kobayashi, Y. et al: Chaperones Hsp70 and Hsp40 suppress aggregate formation and apoptosis in cultured neuronal cells expressing truncated androgen receptor protein with expanded polyglutamine tract. J Biol Chem. 2000 24;275:8772-8


Sample Purity Data. For specific information on a given lot, see related technical data sheet.

Storage, Stability and Shipping:

Store product at –70oC. For optimal storage, aliquot target into smaller quantities after centrifugation and store at recommended temperature. For most favorable performance, avoid repeated handling and multiple freeze/thaw cycles.

Molecular Weight:

~65 kDa

Product Datasheets


Cancer, Cellular Stress, p38 Pathway


  HSP70 Protein, H34-54G

  HSP60 Protein, H33-54G

  Anti-HSP27, H30-63R

  H11 (HSP22) Protein, H09-34G



Terms of Service

Privacy Policy

Get the latest resources, updates and offers in your inbox