Fukutin Gene Sequencing
| Order Code: | FCMD |
| Order Form: | Muscular Dystrophy Molecular Genetics Requisition |
Specimen:
Whole Blood
Collection Medium:
 |
| Lavender top tube 3 mL (EDTA) |
Minimum:
Adult minimum: 3 mL whole blood in lavender top (EDTA) tube.
Children minimum: 2 mL whole blood in lavender top (EDTA) tube.
Optional specimen type: Formalin Fixed paraffin embedded tissue; Fresh
Frozen tissue.
Testing on smaller volumes than those requested will be attempted.
However, in some cases, small blood volumes may compromise the ability
to perform testing.
Rejection Criteria:
Testing requires a dedicated collection tube.
Testing
Schedule:
Weekly
Analytic Time:
21 days
Reference Range:
Normal
Comments:
Mutations in the fukutin gene (FCMD, OMIM #607440) cause disorders in
the dystroglycanopathy spectrum, all with autosomal recessive
inheritance. FCMD mutations are known to cause Walker-Warburg syndrome
at the severe end of the spectrum, and limb-girdle muscular dystrophy
type 2L (LGMD2L) at the mild end of the spectrum. Fukuyama congenital
muscular dystrophy is an intermediate phenotype and is the second most
common muscular dystrophy among Japanese people.
Methodology:
Sequence Analysis of the coding region of the FCMD gene.
Sample
Processing:
Lavender tube is sent as whole blood, no processing necessary.
Sample
Storage:
Room temperature for up to 24 hours, then refrigerate the whole blood if it is necessary to be held overnight, or weekends, or holidays.
Transport
Instructions:
Place specimen into styrofoam container, seal container.
DO NOT FREEZE, protect specimen by wrapping in bubble-wrap or toweling.
Recommend express mail or equivalent if not on courier service.
Ship at ambient temperature.
DO NOT FREEZE, protect specimen by wrapping in bubble-wrap or toweling.
Recommend express mail or equivalent if not on courier service.
Ship at ambient temperature.
CPT Code:
83912, 83890, 83898(x9), 83904(x9); if paraffin block or fresh tissue
is submitted, remove CPT code 83890 and add 83907.