• 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



RAB3-GAP150; RAB3GAP150; SPG69; WARBM2; p150

Associated disorders

The RAB3GAP2 gene is associated with autosomal recessive Warburg micro syndrome 2 (WARBM2) (MedGen UID: 481844) and Martsolf syndrome (MedGen UID: 208658). Additionally, there is preliminary evidence supporting a correlation with autosomal recessive hereditary spastic paraplegia (HSP) (PMID: 24482476).

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Invitae tests that include this gene:

The RAB3GAP2 gene encodes the regulatory subunit of the Rab3 GTPase-activating complex. Rab3 GTPase-activating complex regulates exocytosis of neurotransmitters and hormones by converting the active Rab3-GTP to the inactive form Rab3-GDP. Rab3 subfamily members (Rab3A, -B, -C, and -D are implicated in Ca2+ dependent exocytosis.

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
RAB3GAP2 NM_012414.3