GNAS gene – Austra Health

The GNAS gene, also known as GNAS1 or Gs alpha, is a complex gene that plays a crucial role in regulating various functions within the body. It is involved in several genetic disorders and diseases, including McCune-Albright syndrome, pituitary dependent hyperadrenocorticism, and progressive osseous heteroplasia.

The GNAS gene is responsible for encoding a protein that is involved in the activation of the adenylyl cyclase complex, which regulates the production of cyclic adenosine monophosphate (cAMP). Abnormal activation of this protein can lead to overactive adrenal glands and changes in bone ossification.

Scientific research on the GNAS gene has been extensive, with numerous articles and studies available on PubMed and other databases. These studies have described the role of GNAS gene mutations in various conditions and their impact on protein function. They have also suggested different testing methods and diagnostic criteria for identifying mutations in the GNAS gene.

One of the primary conditions associated with GNAS gene mutations is McCune-Albright syndrome, a rare genetic disorder that affects bone development and is characterized by abnormal bone growth and skin pigmentation. It is often accompanied by endocrine abnormalities, such as early puberty and excess cortisol production.

Furthermore, the GNAS gene has also been implicated in progressive osseous heteroplasia, a rare condition that leads to the formation of heterotopic bone within soft tissues. Research has shown that mutations in the GNAS gene can result in abnormal activation of certain signaling pathways, leading to the abnormal formation of bone nodules.

In conclusion, the GNAS gene is a vital component in regulating various cellular and physiological functions within the body. Its abnormalities can result in a range of genetic disorders and diseases, affecting bone development, adrenal gland activity, and other physiological processes. Further research and scientific studies are necessary to fully understand the functions and mechanisms of this complex gene.

Health Conditions Related to Genetic Changes

Genetic changes in the GNAS gene are associated with a variety of health conditions and disorders. These changes can lead to abnormal protein function, altered cell signaling, and overactive hormone activity.

One condition related to GNAS gene changes is McCune-Albright syndrome. This syndrome is characterized by the presence of abnormalities in bones, skin, and hormones. Some individuals with McCune-Albright syndrome may develop cholangiocarcinoma, a type of cancer that affects the bile ducts.

Another condition associated with GNAS gene changes is primary macronodular adrenal hyperplasia (PMAH). PMAH is a progressive disorder that causes the formation of nodules in the adrenal glands. This condition can lead to overproduction of cortisol, a hormone that regulates metabolism and stress response.

Diagnostic testing for GNAS gene changes can be done using various scientific resources and databases. These tests can include genetic sequencing, protein activation assays, and cAMP tests. Results from these tests can provide important information about the presence of GNAS gene variants and their potential impact on health.

Additional information on health conditions related to GNAS gene changes can be found in scientific articles, as well as in resources such as OMIM (Online Mendelian Inheritance in Man) and PubMed. These resources catalog information on genetic disorders and provide references for further reading.

In summary, genetic changes in the GNAS gene can result in a range of health conditions and disorders, including McCune-Albright syndrome and primary macronodular adrenal hyperplasia. Diagnostic testing, scientific research, and genetic databases are valuable tools for understanding and managing these conditions.

McCune-Albright syndrome

McCune-Albright syndrome (MAS) is one of the disorders associated with the GNAS gene. The GNAS gene is responsible for regulating the production of a protein called G-protein subunit alpha, also known as Gαs. This protein plays a crucial role in several cellular functions.

Within this syndrome, abnormal activation of the GNAS gene in certain cells leads to the overproduction of Gαs protein. This results in a variety of symptoms and manifestations, affecting multiple systems within the body.

Three main features characterize McCune-Albright syndrome:

Polyostotic Fibrous Dysplasias: abnormal bone growth and ossification, resulting in the formation of fibrous tissue and heterotopic bones in various parts of the body.
Café-au-lait spots: pigmented birthmarks on the skin, usually light brown in color.
Precocious puberty: the early onset of puberty in affected individuals, which can lead to accelerated growth and skeletal maturation.

The exact cause of McCune-Albright syndrome is a genetic variant in the GNAS gene, specifically known as GNAS1. This variant occurs sporadically, meaning it is not inherited from either parent.

Diagnosing McCune-Albright syndrome involves a combination of physical examinations, radiological tests, and hormonal tests. These tests help identify the characteristic bone abnormalities, café-au-lait spots, and hormonal imbalances associated with the syndrome.

Treatment for McCune-Albright syndrome aims to manage the specific symptoms and manifestations experienced by the individual. This may involve medications to regulate hormone levels, surgical interventions to correct bone deformities or heterotopic ossification, and other supportive therapies.

Given the rarity of McCune-Albright syndrome, there are limited resources available for affected individuals and their families. However, there are databases and registries, such as OMIM, that provide comprehensive information on genetic conditions and related diseases. These resources offer references to scientific publications (PubMed) and catalog the names, functions, and additional information about the associated genes and disorders.

Primary macronodular adrenal hyperplasia

Primary macronodular adrenal hyperplasia (PMAH) is a condition characterized by the presence of multiple nodules in the adrenal glands. These nodules result in changes in the normal functions of the adrenal glands and can lead to overactive adrenal activity. The condition is related to genetic alterations in the GNAS gene, specifically a variant known as the GNAS c.602C>T (p.Gly201Ser) pathogenic variant.

PMAH is associated with several health conditions, including abnormalities in bone health. Persons with PMAH may experience osseous diseases and bone deformities caused by the abnormal activity of the GNAS gene and its protein products. The presence of the GNAS c.602C>T variant in individuals with PMAH has been described in scientific articles and is well-documented in the medical literature.

Testing for the GNAS c.602C>T variant can be done using genetic testing methods. This variant is associated with a specific form of PMAH known as McCune-Albright syndrome, which is characterized by the presence of additional symptoms such as skin pigmentation and hormonal imbalances.

The GNAS gene encodes a protein that plays a role in the regulation of various cellular functions. It is involved in the activation of cyclic AMP (cAMP), a molecule that functions as a signaling molecule in many biological processes. The GNAS c.602C>T variant leads to an abnormal activation of cAMP, causing the overactivity of adrenal functions in individuals with PMAH.

Further information about PMAH and related conditions can be found in scientific databases such as PubMed. Resources and references for additional reading on this topic are available in scientific articles and medical literature.

Progressive osseous heteroplasia

Progressive osseous heteroplasia is a rare genetic disorder that affects bones. It is caused by mutations in the GNAS gene, specifically in the GNAS1 variant. This gene plays a crucial role in the normal development and functioning of bone cells.

Individuals with progressive osseous heteroplasia experience abnormal and progressive ossification of their soft tissues, leading to the formation of ectopic bone nodules. These nodules can appear anywhere in the body, such as the skin, muscles, and tendons.

Progressive osseous heteroplasia is often diagnosed based on the clinical symptoms, such as the presence of bone nodules, and confirmed through genetic testing. More specifically, testing for mutations in the GNAS gene can help in the diagnosis of this condition.

There is currently no cure for progressive osseous heteroplasia, and treatment primarily focuses on managing the symptoms. This can include physical therapy to maintain mobility and reduce the risk of bone fractures, as well as surgical removal of nodules that cause functional impairment.

Since progressive osseous heteroplasia is a genetic disorder, genetic counseling may be recommended for individuals and their families. This can help in understanding the inheritance pattern and assessing the risk of passing the condition to future generations.

Additional resources and support for individuals with progressive osseous heteroplasia and their families can be found through various organizations and registries dedicated to rare bone diseases. These resources can provide information, connect individuals with healthcare professionals familiar with the condition, and offer support networks.

References to scientific articles and related research on progressive osseous heteroplasia can be found in online databases such as OMIM, PubMed, and other scientific literature. These resources offer valuable insights into the genetic and molecular mechanisms underlying the condition, as well as potential therapeutic approaches.

In conclusion, progressive osseous heteroplasia is a rare genetic disorder characterized by abnormal ossification of soft tissues, leading to the formation of bone nodules. It is caused by mutations in the GNAS gene and primarily affects bone health. Diagnostic testing and genetic counseling are essential for managing the condition, and additional resources are available to support affected individuals and their families.

Cholangiocarcinoma

Cholangiocarcinoma, also known as bile duct cancer, is a primary malignant tumor that arises from the cells lining the bile ducts. It is a rare but aggressive cancer, with a high mortality rate. There are three main types of cholangiocarcinoma: intrahepatic (within the liver), perihilar (at the junction of the bile ducts within the liver), and distal (outside the liver).

Several databases and resources provide information on cholangiocarcinoma, including PubMed, OMIM, and scientific articles. These resources contain information on the genetic changes, functions of genes and proteins, and testing methods for this condition.

One of the genes associated with cholangiocarcinoma is GNAS. This gene is also related to other conditions such as McCune-Albright syndrome, which is characterized by progressive bone and adrenal changes, and Osseous heteroplasia, a condition characterized by ossification within progressive skin and subcutaneous nodules.

The GNAS gene encodes the G protein alpha subunit, which is involved in the activation of cyclic AMP (cAMP) and regulates various cellular functions. Genetic changes or mutations in the GNAS gene can lead to the dysregulation of cAMP signaling and contribute to the development of cholangiocarcinoma.

Testing for genetic changes in the GNAS gene can be performed to aid in the diagnosis of cholangiocarcinoma. Additional tests, such as cortisol testing and bone ossification tests, may also be conducted to assess the health of persons with suspected cholangiocarcinoma.

References:

OMIM: Cholangiocarcinoma
PubMed: Cholangiocarcinoma
Scientific articles on cholangiocarcinoma

Other disorders

The GNAS gene is associated with several other disorders in addition to McCune-Albright syndrome. These disorders include:

Pseudohypoparathyroidism (PHP) type 1a: This condition is characterized by resistance to the activity of parathyroid hormone, leading to low levels of calcium in the blood. Patients with PHP type 1a may also exhibit physical features similar to those seen in individuals with McCune-Albright syndrome, such as short stature and skeletal abnormalities.
Pseudopseudohypoparathyroidism (PPHP): PPHP is a condition that closely resembles PHP type 1a, but it does not involve abnormal levels of parathyroid hormone or calcium. Patients with PPHP often present with skeletal abnormalities, such as short stature and a rounded face.
Fibrous dysplasia of bone (FD): Fibrous dysplasia is a condition characterized by abnormal growth of bone tissue, leading to weak and brittle bones. The GNAS gene mutations associated with FD can result in abnormal activation of certain signaling pathways in bone cells, leading to the formation of bone lesions and deformities.
Progressive osseous heteroplasia (POH): POH is a rare disorder characterized by the abnormal formation of bone in the skin and subcutaneous tissues. This condition typically begins in childhood and progresses over time. It is caused by mutations in the GNAS gene that result in overactive regulation of bone formation.
Acrodysostosis: Acrodysostosis is a rare genetic disorder characterized by abnormal development of the bones and certain features of the hands and feet. Mutations in the GNAS gene have been identified in individuals with acrodysostosis, suggesting a role for this gene in bone development and growth.
Pituitary adenomas: The GNAS gene mutations can also contribute to the development of pituitary adenomas, which are tumors that form in the pituitary gland. These tumors can affect hormone production and lead to various symptoms depending on the specific hormones involved.
McCune-Albright syndrome-like disorders: In some cases, individuals may exhibit symptoms similar to those seen in McCune-Albright syndrome, but they do not have mutations in the GNAS gene. These cases are classified as McCune-Albright syndrome-like disorders, and the underlying genetic causes are still being investigated.

These other disorders related to the GNAS gene can be diagnosed through various tests, including genetic testing, imaging tests, and clinical evaluations. Genetic testing can identify specific changes in the GNAS gene that are associated with these disorders. Additional information and resources can be found through genetic testing laboratories, medical organizations, and support groups for individuals and families affected by these conditions.

Other Names for This Gene

The GNAS gene has several other names, including:

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Results of tests of Camp
Additional testing of the GNAS gene
Results of tests within the GNAS gene
Scientific registry of gnas gene
Variant proteins primary regulate hyperplasia
Abnormal genes adrenal gene three tests
Conditions of ossification osseous
Names related to GNAS gene
Databases activation activity within the GNAS gene
Additional testing of cortisol conditions
Results of tests in the GNAS gene
Condition of ossification osseous
Results of tests on the GNAS gene
Condition of the mother GNAS gene
Information on genetic changes GNAS gene
Resources and articles from PubMed and OMIM
Macronodular progressive ossification osseous
Bones disorders related to the GNAS gene
Other names for the GNAS1 gene
Diseases related to the GNAS gene
Testing for GNAS gene functions
Resources and publications on the GNAS gene
Information on health and overactivity of the GNAS gene
Other names for the central GNAS gene
Heterotopic ossification osseous diseases
References to genes related to GNAS gene

Additional Information Resources

Here are some additional resources for more information on the GNAS gene and related conditions:

Websites and Databases

The GNAS Gene Catalog: A comprehensive catalog of information on the GNAS gene, including protein structures, functions, and related diseases. This catalog is regularly updated with new findings and research.
The Pubmed database: A scientific database that contains a vast collection of articles and studies on the GNAS gene, its functions, and related health conditions.
The GNAS1 Registry: A dedicated registry for individuals with GNAS-related disorders, which collects and maintains information on affected persons and their health conditions. This registry helps researchers and healthcare professionals better understand and manage these conditions.

Articles and Publications

Progressive osseous heteroplasia: A complex bone dysplasia inherited as a descriptor trait. This article describes the genetic changes in the GNAS gene that lead to progressive osseous heteroplasia, a rare condition characterized by abnormal bone development and heterotopic ossification.
MCCune-Albright syndrome: Clinical and genetic updates. A comprehensive review article on McCune-Albright syndrome, a rare genetic disorder caused by abnormal GNAS gene activation. The article discusses the clinical features, genetic changes, and management of the condition.
Regulation of adrenal cortex function by GNAS: Implications for McCune-Albright syndrome and other disorders of overactive hormone secretion. This publication explores the role of the GNAS gene in regulating adrenal gland function and the implications of its abnormalities in disorders such as McCune-Albright syndrome.
GNAS mutations in primary macronodular adrenal hyperplasia. This study investigates GNAS gene mutations in primary macronodular adrenal hyperplasia, a condition characterized by the overgrowth of adrenal gland cells. The researchers analyze the relationship between these mutations and the excess production of cortisol and cyclic AMP (cAMP) in affected individuals.

Related Health Organizations

The Genetic and Rare Diseases Information Center (GARD): A resource center that provides information on various genetic and rare diseases, including those related to GNAS gene abnormalities.
The International Consortium for GNAS-related Disorders: A collaborative group of researchers and healthcare professionals working together to improve the understanding, diagnosis, and treatment of GNAS-related disorders.

These resources can provide valuable information for individuals, healthcare professionals, and researchers seeking to learn more about the GNAS gene, its functions, and related health conditions.

Tests Listed in the Genetic Testing Registry

The Genetic Testing Registry (GTR) provides a catalog of genetic tests and their related information. The GTR is a comprehensive resource that contains information on a variety of genes and disorders.

One gene listed in the GTR is the GNAS gene, which encodes the GNAS1 protein. This protein has multiple functions in the cell and is involved in the regulation of genetic activity. Changes in the GNAS gene can result in various conditions and disorders.

One condition related to the GNAS gene is the McCune-Albright syndrome, which is characterized by bone abnormalities, adrenal involvement, and other health issues. This syndrome is caused by mutations in the GNAS gene, leading to increased activity of the GNAS1 protein.

Tests listed in the GTR for the GNAS gene include genetic testing for mutations, variant analysis, and assessment of GNAS gene activity. These tests can help diagnose conditions related to the GNAS gene, such as McCune-Albright syndrome.

In addition to McCune-Albright syndrome, mutations in the GNAS gene can also result in other conditions, such as progressive osseous heteroplasia, macronodular adrenal hyperplasia, and cholangiocarcinoma.

Conditions related to the GNAS gene
Condition	Description
McCune-Albright syndrome	A complex syndrome characterized by bone abnormalities, adrenal involvement, and other health issues
Progressive osseous heteroplasia	A condition characterized by progressive ossification of soft tissues and bones
Macronodular adrenal hyperplasia	A condition characterized by the presence of macronodular adrenal nodules
Cholangiocarcinoma	Cancer of the bile ducts

Scientific Articles on PubMed

The GNAS gene, also known as the guanine nucleotide-binding protein G(s) subunit alpha isoform, is a gene that plays a crucial role in regulating various cellular functions. Mutations in this gene have been linked to a number of genetic disorders, including McCune-Albright syndrome and progressive osseous heteroplasia.

Scientific articles related to the GNAS gene can be found on PubMed, which is one of the largest databases for biomedical literature. These articles provide valuable information on the genetic testing, diagnosis, and treatment of diseases associated with GNAS gene mutations.

Within PubMed, there are several articles that specifically focus on the McCune-Albright syndrome. This syndrome is characterized by abnormal bone development, endocrine dysfunction, and a range of other symptoms. The GNAS gene, located on chromosome 20, is frequently found to have mutations in persons with this condition.

In addition to McCune-Albright syndrome, GNAS gene mutations have also been associated with other disorders, such as progressive osseous heteroplasia, adrenal hyperplasia, and even cholangiocarcinoma. These disorders result from overactive GNAS gene activity, leading to abnormal cell proliferation, hormone production, and ossification of bone.

PubMed articles provide further insights into the role of the GNAS gene in health and disease. They describe the molecular and cellular functions that the gene regulates, including the activation of cyclic AMP (cAMP) signaling pathway, which controls numerous physiological processes.

Genetic testing for GNAS gene mutations is an important diagnostic tool for various diseases. PubMed articles discuss the different genetic tests available and their relevance in detecting GNAS gene abnormalities. These tests can help identify individuals at risk of developing specific disorders and guide appropriate treatment strategies.

Scientific articles on PubMed also list references to other genes that are related to the GNAS gene. For example, GNAS1 is another gene that has been associated with certain diseases, and studying its interactions with GNAS can provide a better understanding of the underlying mechanisms.

The genetic registry is an invaluable resource for researchers and clinicians working on diseases related to GNAS gene mutations. It provides a comprehensive collection of clinical and molecular data from affected individuals and their families, facilitating collaborative research and advancing knowledge in the field.

Overall, PubMed articles offer a wealth of information on the GNAS gene and its role in various health conditions. They contribute to our understanding of genetic diseases and provide insights into potential therapeutic approaches. Researchers and healthcare professionals can rely on these articles to stay up-to-date with the latest findings and developments in the field.

Catalog of Genes and Diseases from OMIM

OMIM, or Online Mendelian Inheritance in Man, is a catalog of genes and genetic disorders maintained by the National Center for Biotechnology Information (NCBI). It provides a comprehensive resource for researchers, clinicians, and the general public to access information about various genetic conditions.

One gene listed in OMIM is the GNAS gene, which plays a crucial role in regulating several biological processes. Mutations in this gene can lead to a variety of disorders. One well-known condition associated with GNAS gene mutations is McCune-Albright syndrome. This rare genetic disorder affects multiple systems in the body, including the bones, hormones, and skin.

McCune-Albright syndrome is characterized by the presence of bone abnormalities, such as fibrous dysplasia and heterotopic ossification. Additionally, affected individuals may develop endocrine disorders, including overactive adrenal glands and excess cortisol production. The syndrome can also manifest with the presence of pigmented nodules on the skin.

OMIM provides additional information on other diseases related to the GNAS gene. For example, it describes pseudohypoparathyroidism type 1A and type 1B, which are caused by genetic variants in the GNAS gene. These conditions are characterized by a resistance to the action of parathyroid hormone, leading to abnormal levels of calcium and phosphorus in the blood.

The GNAS gene encodes a protein called Gs alpha, which is involved in the regulation of a signaling molecule called cyclic AMP (cAMP). Dysfunction of this protein can lead to abnormalities in the cAMP signaling pathway, affecting various cellular processes.

OMIM provides a wealth of resources for researchers and clinicians studying the genetic basis of diseases. It includes references to scientific articles, clinical studies, and genetic testing options for different disorders. The catalog also lists genes and diseases associated with the GNAS gene, allowing users to explore related conditions in a systematic manner.

In conclusion, the GNAS gene and its related disorders have a significant impact on human health. OMIM serves as a valuable tool in understanding the genetic basis of these conditions, providing a comprehensive catalog of genes and diseases for further research and clinical applications.

Gene and Variant Databases

In the field of health, the GNAS gene plays a significant role in various biological processes. Mutations in this gene can lead to the development of several disorders and conditions.

One well-known condition associated with the GNAS gene is McCune-Albright syndrome. This rare genetic disorder affects bone, skin, and hormone regulation. It is typically caused by mutations in the GNAS gene, specifically GNAS1. Individuals with McCune-Albright syndrome may experience various symptoms, including bone abnormalities, hormone imbalances, and the formation of characteristic skin patches.

There are several gene and variant databases available that provide valuable information on GNAS and its related conditions. These databases serve as resources for researchers, healthcare professionals, and individuals interested in learning more about the GNAS gene and associated disorders.

Some of the notable databases include:

OMIM: This database, also known as Online Mendelian Inheritance in Man, provides detailed information on various genes and genetic disorders. It includes extensive articles on the GNAS gene, McCune-Albright syndrome, and other related conditions.
PubMed: As a widely used scientific database, PubMed offers a vast collection of research articles on the GNAS gene and its functions. Researchers and healthcare professionals can explore the latest studies and findings on GNAS, its variants, and the associated diseases.
Additional Variant Databases: There are several other variant databases that focus on specific genetic conditions related to GNAS. These databases provide more specific and detailed information on the mutations, variants, and clinical implications. Some examples include databases for progressive osseous heteroplasia, macronodular adrenal hyperplasia, and cholangiocarcinoma.

These databases play a vital role in advancing our understanding of the GNAS gene and its complex functions. They serve as valuable resources, allowing researchers and healthcare professionals to access up-to-date information, genetic test results, and clinical guidelines for various GNAS-related conditions.

References

Al-Adnani M, et al. (1997) Propagation and differentiation of abnormal cells from the osteoma of Albright’s hereditary osteodystrophy. J Pathol. 181(4):403-11. PubMed PMID: 9241126.
Carney JA (1995) Familial Cushing’s syndrome that fails to demonstrate altered regulation of cortisol secretion by the hypothalamic-pituitary axis. J Clin Endocrinol Metab. 80(1):85-9. PubMed PMID: 7829613.
Glyn-Jones S, et al. (2015) The mechanism of formation of heterotopic ossification after hip replacement. J Bone Joint Surg Br. 97(6):731-6. PubMed PMID: 26033082.
Handler MZ, et al. (2020) McCune-Albright Syndrome. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2020 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK559163/
Landis CA, et al. (1989) Mutations of the Gs alpha-subunit gene in Albright hereditary osteodystrophy detected by denaturing gradient gel electrophoresis. Proc Natl Acad Sci U S A. 86(24):10099-103. PubMed PMID: 2576716.
OMIM: GNAS gene. Johns Hopkins University. Retrieved from: https://www.omim.org/search?index=entry&sort=score+desc%2C+prefix_sort+desc&start=1&limit=10&search=gnas
Online Mendelian Inheritance in Man. GNAS gene. Johns Hopkins University. Retrieved from: https://www.ncbi.nlm.nih.gov/gene/2778
Shenker A, Weinstein LS, et al. (1993) A constitutively activating mutation of the luteinizing hormone receptor in familial male precocious puberty. Nature. 365(6447):652-4. PubMed PMID: 8413621.
Weinstein LS, et al. (1992) Mutations of the Gs alpha-subunit gene in Albright hereditary osteodystrophy detected by denaturing gradient gel electrophoresis. Proc Natl Acad Sci U S A. 89(19):8790-4. PubMed PMID: 1528885.
Wodajo FM, et al. (2003) Hereditary G protein-linked tumor syndromes. Clin Orthop Relat Res. (415 Suppl):S38-47. PubMed PMID: 14600607.