ArticleNature communications2025
Structural recognition and stabilization of tyrosine hydroxylase by the J-domain protein DNAJC12.
Article in Nature communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Article
- Thioredoxin-1 in the SNpc Regulates Subventricular Zone Neural Proliferation and Olfactory Bulb Neural Differentiation in MPTP-Induced Olfactory Dysfunction.Neurochemical research · 2026Article
- DNAJC12 Stabilizes Phenylalanine Hydroxylase and Facilitates Its Substrate-Dependent Activation.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2026Article
- DNAJC12 Disease: Clinical Spectrum and Long-Term Outcomes.Neurology. Genetics · 2026Article
- Central biogenic amine deficiency with concomitant exploratory behavioral deficits in Dnajc12 knock-out mice.NPJ Parkinson's disease · 2025Article
Corrections and comments
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Authors and funding
16 authors.
Funding
Abstract
Pathogenic variants of the J-domain protein DNAJC12 cause parkinsonism, which is associated with a defective interaction of DNAJC12 with tyrosine hydroxylase (TH), the rate-limiting enzyme in dopamine biosynthesis. In this work, we characterize the formation of the TH:DNAJC12 complex, showing that DNAJC12 binding stabilizes both TH and the variant TH-p.R202H, associated with TH deficiency. This binding delays their time-dependent aggregation in an Hsp70-independent manner, while preserving TH activity and feedback regulatory inhibition by dopamine. DNAJC12 alone barely activates Hsc70 but synergistically stimulates Hsc70 ATPase activity when complexed with TH. Cryo-electron microscopy supported by crosslinking-mass spectroscopy reveals two DNAJC12 monomers bound per TH tetramer, each embracing one of the two regulatory domain dimers, leaving the active sites available for substrate, cofactor and inhibitory dopamine interaction. Our results also reveal the key role of the C-terminal region of DNAJC12 in TH binding, explaining the pathogenic mechanism of the DNAJC12 disease variant p.W175Ter.
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