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    10–21 calendar days (14 days on average)
  • Preferred specimen:
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  • Alternate specimens:
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L1CAM

Alias

CAML1; CD171; HSAS; HSAS1; MASA; MIC5; N-CAM-L1; N-CAML1; NCAM-L1; S10; SPG1

Associated disorders

The L1CAM gene is associated with X-linked L1 Syndrome (MedGen UID: 798627), which includes a spectrum of conditions ranging from complicated hereditary spastic paraplegia 1 (SPG1) (MedGen UID: 162894), X-linked hydrocephalus syndrome (HSAS) (MedGen UID: 75552), MASA syndrome (OMIM: 303350) to X-linked complicated corpus callosum agenesis (MedGen UID: 374339). Other L1CAM-related conditions have been reported (OMIM: 308840).

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L1CAM

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Invitae tests that include this gene:

The L1CAM gene is the sole known cause of L1 syndrome and its allelic variants SPG1 and MASA syndrome.

The L1CAM gene encodes the L1 protein. The L1 protein is a cell adhesion molecule that is expressed in the nervous system and functions in a variety of processes, including neurite outgrowth, myelination, and neuronal cell survival.

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
L1CAM NM_000425.4