DCTN1

dynactin subunit 1

Gene Function

Part of the dynactin complex that activates the molecular motor dynein for ultra-processive transport along microtubules (By similarity). Plays a key role in dynein-mediated retrograde transport of vesicles and organelles along microtubules by recruiting and tethering dynein to microtubules. Binds to both dynein and microtubules providing a link between specific cargos, microtubules and dynein. Essential for targeting dynein to microtubule plus ends, recruiting dynein to membranous cargos and enhancing dynein processivity (the ability to move along a microtubule for a long distance without falling off the track). Can also act as a brake to slow the dynein motor during motility along the microtubule. Can regulate microtubule stability by promoting microtubule formation, nucleation and polymerization and by inhibiting microtubule catastrophe in neurons. Inhibits microtubule catastrophe by binding both to microtubules and to tubulin, leading to enhanced microtubule stability along the axon. Plays a role in metaphase spindle orientation. Plays a role in centriole cohesion and subdistal appendage organization and function. Its recruitment to the centriole in a KIF3A-dependent manner is essential for the maintenance of centriole cohesion and the formation of subdistal appendage. Also required for microtubule anchoring at the mother centriole. Plays a role in primary cilia formation Source: UniProt

Relationship to CMT

dHMN/HMN AD
1 subtype
2p13.1
First described 2003

Subtype Inheritance Class OMIM Sentinel Publication
SubtypedHMN-7B Inheritanceautosomal dominant ClassdHMN/HMN OMIM607641 Sentinel Publication

2003 · 10.1038/ng1123

Stored Identifiers

No HGNC Aliases
hgnc_idHGNC:2711
ensembl_gene_idENSG00000204843
coords_grch38chr2:74361154-74392087
coords_grch37chr2:74588281-74619214
entrez_id1639
omim_gene601143
uniprot_idsQ14203
refseq_accessionNM_004082
mane_refseqNM_004082.5
mane_ensemblENST00000628224.3

ClinVar Variants

Pathogenic and likely pathogenic variants in DCTN1, 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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