• 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
  • Sample requirements
  • Request a sample kit



P450TEC; SPG49; SPG56

Associated disorders

The CYP2U1 gene is associated with autosomal recessive hereditary spastic paraplegia 56 (SPG56) (MedGen UID: 761343).

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Invitae tests that include this gene:

CYP2U1 is a rare cause of hereditary spastic paraplegia (HSP), and the percentage of HSP attributed to pathogenic variants identified in CYP2U1 is unknown.

The CYP2U1 gene encodes the cytochrome P450 2U1 protein. Cytochrome P450 enzymes metabolize fatty acids into active signaling molecules. CYP2U1 metabolizes arachadonic acid and other long chain fatty acids and is predominantly expressed in the brain and immune system.

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, and select noncoding variants. Our assay provides a Q30 quality-adjusted mean coverage depth of 350x (50x minimum, or supplemented with additional analysis). Variants classified as pathogenic or likely pathogenic are confirmed with orthogonal methods, except individual variants that have high quality scores and previously validated in at least ten unrelated samples.

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
CYP2U1 NM_183075.2