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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
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RAPSN

Alias

CMS11; CMS4C; FADS; RAPSYN; RNF205

Associated disorders

The RAPSN gene is associated with autosomal recessive congenital myasthenic syndrome 11 (CMS11) (MedGen UID: 323066) and fetal akinesia deformation sequence (FADS) (MedGen UID: 220903).

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RAPSN

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RAPSN: Analysis includes the promoter variants NM_005055.3:c.-210A>G and NM_005055.3:c.-199C>G.


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Invitae tests that include this gene:

RAPSN is reported to account for 15% to 20% of congenital myasthenic syndrome.

RAPSN encodes a post synaptic protein that binds acetylcholine receptors and beta dystroglycan. These properties result in clustering of acetylcholine receptors at the neuromuscular junction.

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 in the transcript listed below. In addition, analysis covers the select non-coding variants specifically defined in the table below. Any variants that fall outside these regions are not analyzed. Any specific limitations in the analysis of these genes are also listed in the table below.

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
RAPSN* NM_005055.4


*RAPSN: Analysis includes the promoter variants NM_005055.3:c.-210A>G and NM_005055.3:c.-199C>G.