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RPS26 gene

Reviewed by Medicinsk Expert•Last updated: 2026-10-22•Gene

RPS26 gene

The RPS26 gene encodes a ribosomal protein that is essential for the proper function of ribosomes and the production of proteins within the cell.

Normal Function

The RPS26 gene provides instructions for making one of approximately 80 different ribosomal proteins, which are components of cellular structures called ribosomes. Ribosomes process the cell's genetic instructions to create proteins.

Each ribosome is made up of two parts (subunits) called the large and small subunits. The protein produced from the RPS26 gene is among those found in the small subunit. Although the specific functions of the RPS26 protein are not fully understood, it is believed to assist in:

  • Ribosome assembly or stability.
  • Building new proteins.
  • Chemical signaling pathways within the cell.
  • Regulation of cell division.
  • Control of cell self-destruction (apoptosis).

Health Conditions Related to Genetic Changes

Diamond-Blackfan anemia

At least 33 RPS26 gene mutations have been identified in individuals with Diamond-Blackfan anemia. This disorder primarily affects the bone marrow, which produces new blood cells. People with this condition often also have physical abnormalities affecting various parts of the body.

The RPS26 gene mutations that cause Diamond-Blackfan anemia are believed to cause problems with ribosomal function. Studies indicate that a shortage of functioning ribosomes may increase apoptosis of blood-forming cells in the bone marrow, resulting in a low number of red blood cells (anemia). Abnormal regulation of cell division or inappropriate triggering of apoptosis may contribute to the other health problems and unusual physical features that affect some people with Diamond-Blackfan anemia.

Other Names for This Gene

  • 40S ribosomal protein S26
  • DBA10
  • eS26
  • RS26_HUMAN
  • S26

Frequently Asked Questions

RPS26 gene mutations disrupt the normal function of ribosomes, which are crucial for protein production. This disruption leads to a shortage of functional ribosomes, increasing the self-destruction (apoptosis) of blood-forming cells in the bone marrow. This results in a low number of red blood cells (anemia) and can also contribute to the various physical abnormalities seen in affected individuals.
RPS26 gene mutations are a significant cause of Diamond-Blackfan anemia (DBA), with at least 33 different mutations identified. It is one of several genes linked to DBA, and genetic testing is essential to pinpoint the specific genetic cause in an individual.
While the general management of Diamond-Blackfan anemia (DBA) is similar regardless of the specific gene, identifying an RPS26 mutation helps confirm the diagnosis and can inform genetic counseling for families. Treatment typically focuses on managing anemia with corticosteroids or blood transfusions, and addressing any associated physical abnormalities. The long-term outlook can vary, and regular monitoring is crucial.
Yes, Diamond-Blackfan anemia caused by RPS26 gene mutations can be inherited. It typically follows an autosomal dominant pattern, meaning a person only needs one copy of the altered gene to develop the condition. However, new mutations can also occur spontaneously in an individual without a family history. Genetic counseling is recommended for affected families.
Source: MedlinePlus, National Library of Medicine

MedlinePlus brings together authoritative health information from the National Library of Medicine (NLM), the National Institutes of Health (NIH), and other government agencies and health-related organizations.