HSP40, Hdj1 Antibody [3B9.E6] is a mouse monoclonal antibody directed against HSP40, Hdj1, offered by Assay Genie for research applications. Reported applications include WB, IHC, ICC/IF, IP and ELISA. Reported reactivity: Human, Mouse and Rat. Supplied as IgG1, purified by Protein G.
HSP40 proteins, also known as DnaJ homologs, form a large and diverse family of molecular co-chaperones defined by the presence of a conserved J-domain, typically located within the first 75 N-terminal amino acids. This domain is separated from the C-terminal region by a glycine/phenylalanine-rich linker and is critical for stimulating the ATPase activity of HSP70, thereby enhancing its ability to refold misfolded or aggregated proteins. Members of the HSP40 family, including the well-characterized Hdj1, are involved in a wide range of cellular processes such as protein folding, translocation, degradation, and the assembly of multi-protein complexes. In the nervous system, these functions are vital for maintaining proteostasis, especially under stress conditions that promote protein misfolding—a hallmark of neurodegenerative diseases like Alzheimer’s, Parkinson’s, and Huntington’s disease. HSP40-HSP70 complexes form the core of a larger chaperone network, interacting with co-factors such as Hip, Hop, HSP90, CHIP, and BAG-1 to direct client proteins toward refolding or degradation pathways. Differences among HSP40 subtypes, such as the presence of a zinc finger domain in HDJ2 and yeast Ydj1, further modulate their folding capabilities and functional specificity. Given their central role in regulating HSP70 activity and managing proteotoxic stress, HSP40 proteins are emerging as critical modulators of neuronal health and promising targets for therapeutic intervention in neurodegenerative disease research. This antibody is also available conjugated to ATTO 390, ATTO 488, ATTO 594, APC, Biotin, FITC, HRP, PerCP and RPE. Supplied in 100 µg. For research use only; not for diagnostic or therapeutic procedures.
Product Name:
HSP40, Hdj1 Antibody [3B9.E6]
Product SKU:
STMA00026
Size:
100 µg
Target:
HSP40, Hdj1
Host Species:
Mouse
Antibody Type:
Monoclonal
Clone ID:
3B9.E6
Research Areas:
Cancer, Heat Shock, Cell Signaling, Protein Trafficking, Chaperone Proteins
Buffer:
PBS pH7.2, 50% glycerol, 0.09% sodium azide
Storage & Shipping:
Store at -20°C. Shipped on Blue Ice or 4°C. Conjugated variants should be stored according to the product label.
Format:
Liquid
Applications:
WB, IHC, ICC/IF, IP, ELISA
Antibody Isotype:
IgG1
Purification:
Protein G Purified
Concentration:
1 mg/ml
Reactivity:
Human, Mouse, Rat
Recommended Dilution:
WB (1:2000), ICC/IF (1:100); optimal dilutions for assays should be determined by the user.
Specificity:
Detects ~40kDa. Does not cross-react with HDJ2 or YDJ1.
Guarantee:
12 months from date of dispatch
Immunogen:
Recombinant Human Protein HSP40 (Hdj1)
Immunogen Species:
Human
Accession Number:
NP_006136.1
Gene ID:
3337
Swiss-Prot:
P25685
Cellular Localization:
Cytoplasm | Nucleus
Alternative Names:
DNAJB1, HSP40, HSPF1, HDJ1, DNAJ1, DnaJ homolog subfamily B member 1, DnaJ protein homolog 1, Heat shock 40 kDa protein 1, Human DnaJ protein 1, hDj-1, heat shock protein 40
References:
1. Cheetham M.E. and Caplan A.J. (1998) Cell Stress Chaperones 3: 28–36. 2. Fan C.Y., et al. (2003) Cell Stress Chaperones 8: 309–316. 3. Sohn S.Y., Kim S.B., Kim J., and Ahn B.Y. (2006) J Gen Virol. 87(7): 1883-91. 4. Liberek K. et al. (1991) Proc. Natl. Acad. Sci. USA 88: 2874–2878. 5. Cyr D.M., et al. (1992) J Biol Chem. 267: 20927–20931. 6. Höhfeld J., et al. (2001) EMBO Rep. 2: 885–890. 7. Terda K., et al. (1997) J Cell Biol. 139: 1089-1095. 8. Lu Z. and Cyr D.M. (1998) J Biol Chem. 273: 27824-27830.