Legius Syndrome
| Test Code | 5724 |
| Turnaround Time (TAT) | 14-21 days |
| Number of Genes | 1 |
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- Order a Sample Kit
We now offer single site analysis (SSA) at no additional cost to family members
following single gene or panel testing* of the first family member (proband) within 90 days of the original Ambry report date.
Order Now*excludes Exome and SNP Array tests
Mutation Detection Rate
This test can detect >99.9% of described mutations in SPRED1, when present (analytic sensitivity).
Test Description
Genomic deoxyribonucleic acid (gDNA) is isolated from the patient’s specimen using a standardized kit and quantified by agarose gel electrophoresis. Polymerase chain reaction (PCR) is used to selectively amplify regions of gDNA corresponding to SPRED1 followed by double stranded sequencing in sense and antisense directions to detect sequence variations. Gross deletion/duplication analysis is performed using the multiplex ligation-dependent probe amplification (MLPA) kit.
SPRED1 exons 1-7 plus at least 20 bases into the 5’ and 3’ ends of all the introns are analyzed Human Gene Mutation Database (HGMD). Online search engines (e.g. PubMed) and the SPRED1 (ARUP) database are used to search for previously described SPRED1 mutations and polymorphisms. Sequence analysis is based on the following NCBI reference sequence: SPRED1 - NM_152594.2.