DNAJB2

DnaJ heat shock protein family (Hsp40) member B2

Gene Function

Functions as a co-chaperone, regulating the substrate binding and activating the ATPase activity of chaperones of the HSP70/heat shock protein 70 family. In parallel, also contributes to the ubiquitin-dependent proteasomal degradation of misfolded proteins. Thereby, may regulate the aggregation and promote the functional recovery of misfolded proteins like HTT, MC4R, PRKN, RHO and SOD1 and be crucial for many biological processes. Isoform 1 which is localized to the endoplasmic reticulum membranes may specifically function in ER-associated protein degradation of misfolded proteins Source: UniProt

Relationship to CMT

dSMA AR
1 subtype
2q35
First described 2012

Subtype Inheritance Class OMIM Sentinel Publication
SubtypedSMA-5 Inheritanceautosomal recessive ClassdSMA OMIM614881 Sentinel Publication

2012 · 10.1002/ana.22684

Stored Identifiers

HGNC Aliases: HSJ1
hgnc_idHGNC:5228
ensembl_gene_idENSG00000135924
coords_grch38chr2:219279308-219286900
coords_grch37chr2:220143989-220151622
entrez_id3300
omim_gene604139
uniprot_idsP25686
refseq_accessionNM_001039550
mane_refseqNM_006736.6
mane_ensemblENST00000336576.10

ClinVar Variants

Pathogenic and likely pathogenic variants in DNAJB2, as classified in ClinVar, are read live from NCBI. Only aggregate germline records are shown. Uncertain and conflicting classifications are not. Experts in CMT makes no claim to the accuracy of ClinVar data. This index is provided for informational purposes only.

Review stars are ClinVar’s measure of how well a classification is supported: four for a practice guideline, three for an expert panel review, two for agreement among multiple submitters, one for a single submitter with criteria provided, and none where no criteria were provided.

Reported in CMT
Reported in Other Diseases

Reported in a disease other than CMT. Listed apart rather than counted as CMT variants.

Variants w/o a Recorded Disease

Pathogenic or likely pathogenic in ClinVar, submitted without a disease recorded.

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