CMD1X; FCMD; LGMD2M; MDDGA4; MDDGB4; MDDGC4
The FKTN gene is associated with autosomal recessive muscular dystrophy-dystroglycanopathy type A4 (MDDGA4), also known as Fukuyama congenital muscular dystrophy (FCMD) (MedGen UID: 140820), type B4 (MDDGB4) (MedGen UID: 413465) and type C4 (MDDGC4) (MedGen UID: 370585), and dilated cardiomyopathy (DCM) (MedGen UID: 370583).
Order this gene as a single gene test.
FKTN: Analysis includes the intronic variant NM_001079802.1:c.647+2084G>T as well as the 3 kb retrotransposon insertion in the 3' UTR at c.*4287_*4288ins3062.
Invitae tests that include this gene:
Pathogenic variants in FKTN may cause as much as 10% of clinical cases of muscular dystrophy-dystroglycanopathy. FKTN is a particularly common cause of muscular dystrophy in the Japanese and Ashkenazi Jewish populations due to the presence of founder mutations. Pathogenic FKTN variants are also associated with an unknown percentage of clinical cases of DCM.
FKTN encodes fukutin, a Golgi-located protein with a role in post-translational modification of dystroglycan.
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|
*FKTN: Analysis includes the intronic variant NM_001079802.1:c.647+2084G>T as well as the 3 kb retrotransposon insertion in the 3' UTR at c.*4287_*4288ins3062.