Card kit

Invitae RASopathies and Noonan Spectrum Disorders Panel

Test code: 04151

Test description

The Invitae RASopathies and Noonan Spectrum Disorders Panel analyzes genes that belong to the Ras/mitogen-activated protein kinase (Ras/MAPK) pathway, which is associated with a class of pediatric conditions termed “RASopathies” (also known as Noonan Spectrum Disorders). RASopathies are characterized by short stature, distinctive facial features, heart defects, developmental delay, and an increased risk of malignancies. These genes were selected based on the available evidence to date to provide a broad analysis for inherited RASopathies and related conditions. The genetic heterogeneity associated with these conditions can make it difficult to use phenotype as the sole criterion to select a definitive cause. Broad panel testing allows for an efficient evaluation of several potential genes based on a single clinical indication. Genetic testing of these genes may confirm a diagnosis and help guide treatment and management decisions. Identification of a disease-causing variant can inform recurrence-risk assessment and genetic counseling.

Disorders tested

Ordering information

Turnaround time:

10–21 calendar days (14 days on average)

New York approved:

Yes

Preferred specimen:

3mL whole blood in a purple-top EDTA tube (K2EDTA or K3EDTA)

Alternate specimens:

Saliva, buccal swab, and gDNA are also accepted.
Learn more about specimen requirementsRequest a specimen collection kit

Clinical description

To view the complete clinical description of this panel, click here.

Clinical description

Assay 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 and 10 to 20 base pairs of adjacent intronic sequence on either side of the coding exons in the transcript listed below, depending on the specific gene or test. In addition, the analysis covers select non-coding variants. Any variants that fall outside these regions are not analyzed. Any limitations in the analysis of these genes will be listed on the report. Contact client services with any questions.

Based on validation study results, this assay achieves >99% analytical sensitivity and specificity for single nucleotide variants, insertions and deletions <15bp in length, and exon-level deletions and duplications. Invitae's methods also detect insertions and deletions larger than 15bp but smaller than a full exon but sensitivity for these may be marginally reduced. Invitae’s deletion/duplication analysis determines copy number at a single exon resolution at virtually all targeted exons. However, in rare situations, single-exon copy number events may not be analyzed due to inherent sequence properties or isolated reduction in data quality. Certain types of variants, such as structural rearrangements (e.g. inversions, gene conversion events, translocations, etc.) or variants embedded in sequence with complex architecture (e.g. short tandem repeats or segmental duplications), may not be detected. Additionally, it may not be possible to fully resolve certain details about variants, such as mosaicism, phasing, or mapping ambiguity. Unless explicitly guaranteed, sequence changes in the promoter, non-coding exons, and other non-coding regions are not covered by this assay. Please consult the test definition on our website for details regarding regions or types of variants that are covered or excluded for this test. This report reflects the analysis of an extracted genomic DNA sample. In very rare cases, (circulating hematolymphoid neoplasm, bone marrow transplant, recent blood transfusion) the analyzed DNA may not represent the patient's constitutional genome.

Assay information

Order test

You can customize this test by clicking genes to remove them.

Primary panel

28 genes selected
A2ML1
ACTB
ACTG1
BRAF
CBL
HRAS
KAT6B
KRAS
LZTR1
MAP2K1
MAP2K2
MRAS
NF1
NRAS
Show all genes

Question about billing? 

Find answers