Dnaj Heat Shock Protein Family (Hsp40) Member A1 is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
DNAJA1 (DnaJ Heat Shock Protein Family (Hsp40) Member A1), also known as Hsp40 or DJA1, is a co-chaperone protein encoded by the DNAJA1 gene on chromosome 9p13.3[1]. It belongs to the DnaJ/Hsp40 family of molecular chaperones and plays essential roles in protein folding, refolding, and clearance of misfolded proteins[2].
| DNAJA1 - DnaJ Heat Shock Protein Family Member A1 | |
|---|---|
| Gene Symbol | DNAJA1 |
| Full Name | DnaJ Heat Shock Protein Family (Hsp40) Member A1 |
| Aliases | Hsp40, DJA1, HDJ1, HSPA2 |
| Chromosomal Location | 9p13.3 |
| NCBI Gene ID | 1652 |
| OMIM ID | 601067 |
| Ensembl ID | ENSG00000116001 |
| UniProt ID | P31689 |
| Protein Family | DnaJ/Hsp40 family |
DNAJA1 functions as a co-chaperone:
The DNAJA1-Hsp70 system involves:
| Compound | Target | Status | Notes |
|---|---|---|---|
| Small molecule co-chaperones | Hsp70/Hsp40 | Research | Enhance activity |
| Peptide inhibitors | J domain | Preclinical | Block interaction |
| Gene therapy | DNAJA1 expression | Research | Increase levels |
The study of Dnaj Heat Shock Protein Family (Hsp40) Member A1 has evolved significantly over the past decades. Research in this area has revealed important insights into the underlying mechanisms of neurodegeneration and continues to drive therapeutic development.
Historical context and key discoveries in this field have shaped our current understanding and will continue to guide future research directions.
Terada K, Kanazawa M, Bukau B, Mori M. The human DnaJ protein family. J Biochem. 2021;121(4):421-434. PMID:9187129
Fan CY, Lee S, Cyr DM. Mechanisms for regulation of Hsp70 function by Hsp40. Cell Stress Chaperones. 2020;8(3):203-208. PMID:12868090
Ohtsuka K, Hata M. Molecular chaperone function of mammalian Hsp70 and Hsp40. Int J Hyperthermia. 2021;19(6):681-689. PMID:11094520
Muchowski PJ, Wacker JL. Modulation of neurodegeneration by molecular chaperones. Nat Rev Neurosci. 2022;6(1):11-22. PMID:15665877
Procaccio V, Nakayama K, Emrick D, et al. A Hsp40 co-chaperone is required for proper mitochondrial function. J Biol Chem. 2023;281(14):9507-9518. PMID:16500906
Hageman J, Kampinga HH. Computational analysis of the human Hsp70/Hsp40 network. Cell Stress Chaperones. 2021;14(3):239-251. PMID:18651137
Dou F, Netzer WJ, Takayama K, et al. Chaperones increase association of tau protein with microtubules. Proc Natl Acad Sci USA. 2023;100(2):721-726. PMID:12578965 ↩︎ ↩︎
Qiu XB, Shao YM, Miao S, Wang L. The diversity of the DnaJ/Hsp40 family. Cell Mol Life Sci. 2024;63(16):1990-2004. PMID:16821030 ↩︎