CTRCT14; CX46; CZP3
The GJA3 gene is associated with autosomal dominant congenital cataracts (MedGen UID: 356152)
Order this gene as a single gene test.
Invitae tests that include this gene:
The GJA3 gene encodes the gap junction protein alpha 3. The GJA3 protein forms the connexin subunits of the ocular lens gap junctions. Gap junctions act as channels in between neighboring cells to allow diffusion of molecules between cells to maintain ionic and water balance which are important for transparency and optical properties of the lens (PMID: 12808044).
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|