Shprintzen-Goldberg Syndrome via the SKI Gene

Summary and Pricing

Test Method

Sequencing and CNV Detection via NextGen Sequencing using PG-Select Capture Probes
Test Code Test Copy GenesTest CPT Code Gene CPT Codes Copy CPT Codes Base Price
7293 SKI 81479 81479,81479 $680 Order Options and Pricing
Test Code Test Copy Genes Test CPT Code Gene CPT Codes Copy CPT Code Base Price
7293SKI81479 81479 $680 Order Options and Pricing

Pricing Comments

This test is also offered via our exome backbone with CNV detection (click here). The exome-based test may be higher priced, but permits reflex to the entire exome or to any other set of clinically relevant genes.

An additional 25% charge will be applied to STAT orders. STAT orders are prioritized throughout the testing process.

Turnaround Time

18 days on average for standard orders or 13 days on average for STAT orders.

Please note: Once the testing process begins, an Estimated Report Date (ERD) range will be displayed in the portal. This is the most accurate prediction of when your report will be complete and may differ from the average TAT published on our website. About 85% of our tests will be reported within or before the ERD range. We will notify you of significant delays or holds which will impact the ERD. Learn more about turnaround times here.

Targeted Testing

For ordering sequencing of targeted known variants, go to our Targeted Variants page.

EMAIL CONTACTS

Genetic Counselors

Geneticist

Clinical Features and Genetics

Clinical Features

Shprintzen-Goldberg syndrome (SGS) clinical features overlap with those of Loeys-Dietz syndrome (LDS) and Marfan syndrome (MFS). Affected individuals have pectus excavatum or pectus carinatum, scoliosis, and arachnodactyly. Characteristic facial findings include craniosynostosis, long narrow head, hypertelorism, exophthalmos, downslanting palpebral fissures, low-set ears and high palate. Distinguishing features of SGS from LDS and MFS include hypotonia and intellectual disability. Aortic dilatation and arterial toruosity is less frequent in SGS patients than in LDS and MFS (Carmignac et al. 2012. PubMed ID: 23103230; Doyle et al. 2012. PubMed ID: 23023332; Greally. 1993. PubMed ID: 20301454).

Genetics

Shprintzen-Goldberg syndrome is inherited in an autosomal dominant manner due to pathogenic variants in the SKI gene. SKI protein is a repressor of TGF-beta signaling. Most causative variants reported to date are missense variants that arose de novo (Carmignac et al. 2012. PubMed ID: 23103230; Doyle et al. 2012. PubMed ID: 23023332). An in-frame deletion has also been reported (Doyle et al. 2012. PubMed ID: 23023332). To date, all documented pathogenic variants in SKI reside in the R-SMAD binding domain, which is located in exon 1 (Carmignac et al. 2012. PubMed ID: 23103230; Doyle et al. 2012. PubMed ID: 23023332).

Clinical Sensitivity - Sequencing with CNV PG-Select

Twenty-eight out of 29 individuals with Shprintzen-Goldberg syndrome were found to have a pathogenic variant in SKI (Doyle et al. 2012. PubMed ID: 23023332; Carmignac et al. 2012. PubMed ID: 23103230).

Testing Strategy

This test provides full coverage of all coding exons of the SKI gene, plus ~10 bases of flanking noncoding DNA. We define full coverage as >20X NGS reads or Sanger sequencing.

Indications for Test

Individuals with features consistent with Shprintzen-Golberg syndrome.

Gene

Official Gene Symbol OMIM ID
SKI 164780
Inheritance Abbreviation
Autosomal Dominant AD
Autosomal Recessive AR
X-Linked XL
Mitochondrial MT

Disease

Name Inheritance OMIM ID
Shprintzen-Goldberg Syndrome AD 182212

Citations

Ordering/Specimens

Ordering Options

We offer several options when ordering sequencing tests. For more information on these options, see our Ordering Instructions page. To view available options, click on the Order Options button within the test description.

myPrevent - Online Ordering

  • The test can be added to your online orders in the Summary and Pricing section.
  • Once the test has been added log in to myPrevent to fill out an online requisition form.
  • PGnome sequencing panels can be ordered via the myPrevent portal only at this time.

Requisition Form

  • A completed requisition form must accompany all specimens.
  • Billing information along with specimen and shipping instructions are within the requisition form.
  • All testing must be ordered by a qualified healthcare provider.

For Requisition Forms, visit our Forms page


Specimen Types

Specimen Requirements and Shipping Details

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ORDER OPTIONS

View Ordering Instructions

1) Select Test Method (Backbone)


1) Select Test Type


2) Select Additional Test Options

STAT and Prenatal Test Options are not available with Patient Plus.

No Additional Test Options are available for this test.

Note: acceptable specimen types are whole blood and DNA from whole blood only.
Total Price: $
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