HSPB8

heat shock protein family B (small) member 8

Gene Function

Involved in the chaperone-assisted selective autophagy (CASA), a crucial process for protein quality control, particularly in mechanical strained cells and tissues such as muscle. Displays temperature-dependent chaperone activity Source: UniProt

Relationship to CMT

CMT2dHMN/HMN AD
2 subtypes
12q24.23
First described 2004

Subtype Inheritance Class OMIM Sentinel Publication
SubtypedHMN-2A Inheritanceautosomal dominant ClassdHMN/HMN OMIM158590 Sentinel Publication

2004 · 10.1038/ng1328
SubtypeCMT2L Inheritanceautosomal dominant ClassCMT2 OMIM608673 Sentinel Publication

2005 · 10.1007/s00439-004-1218-3

Stored Identifiers

HGNC Aliases: H11, E2IG1, HSP22
hgnc_idHGNC:30171
ensembl_gene_idENSG00000152137
coords_grch38chr12:119171555-119224855
coords_grch37chr12:119616447-119658936
entrez_id26353
omim_gene608014
uniprot_idsQ9UJY1
refseq_accessionNM_014365
mane_refseqNM_014365.3
mane_ensemblENST00000281938.7

ClinVar Variants

Pathogenic and likely pathogenic variants in HSPB8, 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.

The Dorsal Root

More From The Dorsal Root


A Name That Does Too Much Work

Jean-Martin Charcot's name appears throughout medicine, but nowhere does it create more confusion than in the foot. Learn why the CMT foot and Charcot neuroarthropathy, also known as Charcot foot, share a name yet differ in how they develop, appear, and are managed.


When Medicine Lost Its Compass

Evidence failed not because it was wrong, but because it was weaponized. I lived the downstream effects of that failure for more than a decade. This is what happens when medicine forgets that data always ends in a human being.


Error 404: Gene Not Found

CMT genetic testing often fails to identify the cause of the disease, even when comprehensive panels are used. Here, we discuss why this happens, what genetic tests can and cannot do, and why a negative result still matters.