Order Connexin Test (GJB2 Sequencing and GJB6-D13S1830 Deletion) for Hearing Loss
Over half of all cases of early childhood hearing loss are due to genetic causes. Variants in the GJB2 gene, encoding the connexin 26 protein, represent the largest proportion of these. Read more details about this test.
All samples must be accompanied with a completed requisition form. Please make sure any identifiers used on the specimen are provided on the paperwork. Consent page should be signed by a health care provider. Any incomplete or missing paperwork may delay the start of testing.
GJB2 (Connexin 26)
Sanger Sequencing, PCR
GJB2 (Connexin 26) Gene Sequencing - lmCX26-a_L
GJB6 (Connexin 30) Deletion - lmCX30-a_L
7ml of whole blood (3–5ml for an infant) in a lavender top tube (K2EDTA or K3EDTA)
10 ug of DNA at a minimum concentration of 25 ng/ul (please provide DNA concentration)
The Laboratory for Molecular Medicine offers several billing options for our clients and their patients; however, we do not bill insurance companies and are unable to begin testing without accurate billing information.
GJB6 - 81254
For questions, please contact us at 617-768-8500 or by email.