• Turnaround time:
    10–21 calendar days (14 days on average)
  • Preferred specimen:
    3mL whole blood in a purple-top tube
  • Alternate specimens:
    DNA or saliva/assisted saliva
  • Sample requirements
  • Request a sample kit



DAP-150; DP-150; P135

Associated disorders

The DCTN1 gene is associated with autosomal dominant Perry syndrome (MedGen UID: 357007), distal hereditary motor neuropathy type VIIB (HMN7B) (MedGen UID: 375157), and amyotrophic lateral sclerosis 1 (ALS1) (MedGen UID: 400169).

The DCTN1 gene is the only known cause of Perry syndrome but is a rare cause of dHMN.

The DCTN1 gene encodes dynactin-1, the largest polypeptide of dynactin complex. This complex plays a critical role in cell division and the transport of materials within cells, and is particularly important for the proper function of axons.

Assay and technical information

Invitae is a College of American Pathologists (CAP)-accredited and Clinical Laboratory Improvement Amendments (CLIA)-certified clinical diagnostic laboratory performing full-gene sequencing and deletion/duplication analysis using next-generation sequencing technology (NGS).

Our sequence analysis covers clinically important regions of each gene, including coding exons, +/- 10 base pairs of adjacent intronic sequence, and select noncoding variants. Our assay provides a Q30 quality-adjusted mean coverage depth of 350x (50x minimum, or supplemented with additional analysis). Variants classified as pathogenic or likely pathogenic are confirmed with orthogonal methods, except individual variants that have high quality scores and previously validated in at least ten unrelated samples.

Our analysis detects most intragenic deletions and duplications at single exon resolution. However, in rare situations, single-exon copy number events may not be analyzed due to inherent sequence properties or isolated reduction in data quality. If you are requesting the detection of a specific single-exon copy number variation, please contact Client Services before placing your order.

Gene Transcript reference Sequencing analysis Deletion/Duplication analysis
DCTN1 NM_004082.4