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  • 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
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MATR3

Alias

ALS21; MPD2; VCPDM

Associated disorders

The MATR3 gene is associated with autosomal dominant distal myopathy 2 (MPD2) (MedGen UID: 342950). In addition, the MATR3 gene has preliminary evidence for a correlation with autosomal dominant amyotrophic lateral sclerosis 21 (ALS21) (PMID: 26493020, 25771394, 24686783).

Pathogenic mutations in the MATR3 gene cause an unknown percentage of cases of distal myopathy.

The MATR3 gene encodes the Matrin 3 protein, which is expressed in skeletal muscle and is a component of the nuclear matrix.

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
MATR3 NM_199189.2; NM_001194956.1