What does the FLCN gene do?

The FLCN gene provides instructions for making a protein called folliculin. Researchers have not determined the protein’s function, but they believe it may act as a tumor suppressor. Tumor suppressors help control the growth and division of cells.

What is FLCN gene mutation?

Abstract. Germline mutations in the novel tumor suppressor gene FLCN are responsible for the autosomal dominant inherited disorder Birt-Hogg-Dubé (BHD) syndrome that predisposes to fibrofolliculomas, lung cysts and spontaneous pneumothorax, and an increased risk for developing kidney tumors.

How do you test for Birt-Hogg-Dubé syndrome?

Genetic tests are usually done with a blood test. A small sample of blood is taken, DNA is extracted from blood cells, and the Folliculin gene is sequenced to look for a mutation. If a blood test is not an option, cheek swabs can be used in some cases. Only certified labs can do genetic testing for BHD.

What chromosome is the FLCN gene on?

This gene is located within the Smith-Magenis syndrome region on chromosome 17. Mutations in this gene are associated with Birt-Hogg-Dube syndrome, which is characterized by fibrofolliculomas, renal tumors, lung cysts, and pneumothorax.

Where is the FLCN gene located?

Cytogenetic Location: The FLCN gene is located on the short (p) arm of chromosome 17 at position 11.2. (17p11. 2).

What causes Birt Hogg Dube?

Birt-Hogg-Dubé syndrome is caused by a mutation in the folliculin (FLCN) gene that has been mapped to the short arm of chromosome 17, specifically 17p11. 2. Since its discovery, over 100 unique mutations in FLCN, caused by insertion/deletions, nonsense or splice-site mutation, have been identified.

How common is Birt-Hogg-Dubé syndrome?

Birt-Hogg-Dubé syndrome is rare; its exact incidence is unknown. This condition has been reported in more than 400 families.

What causes Birt-Hogg-Dubé syndrome?

How common is Birt Hogg Dube?

Who discovered Birt-Hogg-Dubé syndrome?

The syndrome was first well described in 1977, by three Canadian physicians, Arthur R. Birt, Georgina R. Hogg, and William J. Dubé.

How do you get rid of a lung cyst?

Your doctor may suggest you get a procedure called a pleurodesis. It closes up the space between your lungs and chest wall and stops air or fluid from filling the space. It’s not clear if PLCH is a cancer or an immune disorder. Either way, the first and most important treatment is to quit smoking.

What is Birt Hogg syndrome?

A rare, inherited disorder in which benign (not cancer) skin lesions called fibrofolliculomas form in the hair follicles on the face, neck, and chest. Patients with Birt-Hogg-Dubé syndrome have an increased risk of kidney cancer and benign kidney tumors.

What is the function of FLCN gene?

Learn more The FLCN gene provides instructions for making a protein called folliculin. Researchers have not determined the protein’s function, but they believe it may act as a tumor suppressor. Tumor suppressors help control the growth and division of cells.

How is the familial FLCN variant identified?

Evaluation of Relatives at Risk If the familialFLCNpathogenic variantis known, use of molecular genetic testingfor early identification of at-risk family members improves diagnostic certainty and reduces costly screening procedures in at-risk members who have not inherited the pathogenic variant.

What are the benefits of molecular genetic testing for familial FLCN?

If the familialFLCNpathogenic variantis known, use of molecular genetic testingfor early identification of at-risk family members improves diagnostic certainty and reduces costly screening procedures in at-risk members who have not inherited the pathogenic variant.

What is the sequence analysis of FLCN?

Sequence analysis of FLCNis performed first to detect small intragenic deletions/insertions and missense, nonsense, and splice sitevariants. Note: Depending on the sequencing method used, single-exon, multiexon, or whole-gene deletions/duplications may not be detected.