The RPL35A gene helps make a small but essential part of the ribosome, the cell’s protein-making machinery. This gene plays an important role in helping fast-growing cells, especially blood-forming cells in the bone marrow, make the proteins they need. If it does not work properly, some people develop Diamond-Blackfan anemia, where the body may not make enough red blood cells and may also have slow growth or differences in the head, face, or thumbs. Effects can vary from person to person.
What is a gene?
Genes are stretches of DNA that carry instructions your cells use to make molecules or regulate activities in the body. Some genes provide the directions for producing proteins, which do much of the cell’s work. Other genes mainly help control when certain processes happen, where they happen, and how active they are. Together, genes affect how the body develops and works, and they can influence how you respond to food, stress, or medications. To explore this topic in more detail, you can learn more in the LearnHub.
Overview
RPL35AGene function
What if the gene works
The RPL35A gene gives cells instructions for making a small part of the ribosome, the cell machinery that makes proteins. This helps cells build the proteins they need for everyday growth, repair, and function.
Risk
What if the gene does not work
Variants in the RPL35A gene can cause Diamond-Blackfan anemia, with reduced red blood cell production that may lead to anemia, poor growth, and sometimes birth differences. Milder and severe variants can influence which features appear and how marked they are.
Treatment
What does that mean for your treatment
No treatment or drug choice is currently tailored specifically to pathogenic variants in the RPL35A gene; management follows the usual care for the condition present rather than a RPL35A-directed approach.
Conditions associated with RPL35A
Gene function
What if the gene works
Your cells constantly make proteins to repair tissues, send signals, and keep organs working. This is a key part of how the RPL35A gene helps your cells make proteins. It helps build part of the ribosome, the cell's protein-making machinery, so proteins can be assembled in a steady, controlled way.
The RPL35A gene provides one of the proteins that forms the large half of the ribosome. This helps the ribosome stay properly built while it reads genetic instructions and assembles proteins.
Its protein helps the ribosome join amino acids in the right order to make new proteins. This supports everyday cell work, including replacing worn out parts and making many of the body's needed proteins.
What is a variant?
A genetic variant is a minor change in a gene’s DNA sequence. These changes are common and help explain normal differences among people, such as appearance, metabolism, and the way the body responds to environmental influences. Many variants do not have any noticeable effect and are simply part of natural genetic variation. In some cases, though, a variant can change how a gene works more significantly and may contribute to or cause a genetic condition.
Genetic variants
What if the gene does not work
Variants in the RPL35A gene often reduce how much RPL35A protein a cell makes or change its shape, so it joins the ribosome less well. The main RPL35A gene variant effects involve impaired ribosome assembly and lower protein production inside the cell. Milder variants may leave some activity, while more disruptive variants can cause a larger loss of function and, in Diamond-Blackfan anemia, may be linked to earlier or more marked features.
How variants are linked to conditions
Pathogenic variants in the RPL35A gene cause a form of Diamond-Blackfan anemia, a rare inherited condition marked by low red blood cell production, often starting in infancy. In discussions of the RPL35A gene and Diamond-Blackfan anemia, this is the primary and well-established diagnosis linked to the gene. Some people with an RPL35A-related diagnosis also have growth differences or birth differences, although the pattern can vary.
A variant is not necessarily a diagnosis
Variants in genes are a usual feature of human biology and are widely found across the population. Most do not directly affect health and instead represent normal human variation. For many genes, having a variant associated with a condition points to a possible link rather than a certain diagnosis, particularly when several genes and environmental influences play a role. In some situations, though, one well understood variant in a particular gene is enough to confirm a diagnosis.
Are there things that can increase or change my risk?
There isn't yet broadly confirmed evidence on specific factors that increase or reduce risk related to the RPL35A gene. If someone carries a disease-causing change in RPL35A, the main factor is the genetic change itself, and symptoms can vary from one person to another.
Inheritance of RPL35A variants
For families asking how RPL35A gene variants are inherited, the best-established pattern is autosomal dominant. This means a person with a disease-causing variant in one copy of the RPL35A gene can pass it to a child, and each pregnancy carries a 50% chance of inheriting that variant. Some people inherit the variant from an affected parent, while some cases happen because of a new (de novo) variant that was not inherited from either parent. Sons and daughters can inherit it equally.
What does my RPL35A result mean for my family?
A harmful change in the RPL35A gene is linked to a form of Diamond-Blackfan anemia that usually runs in families in a dominant pattern, so close relatives such as a parent, brother, sister, or child may also carry the same change. Some relatives may have clear symptoms, while others may have milder features or none that were recognized. New gene changes can also happen for the first time in one family member, so a parent does not always carry it.
Genetic information
Genetic testing
How you find out about variants
Variants in the RPL35A gene are usually found with genetic testing for RPL35A variants, using a blood sample or saliva sample. A lab reads the DNA sequence of the gene, often as part of a larger panel or exome test, and the report explains whether a variant was found and how clearly it is understood.
When should I consider getting a genetic test?
Genetic testing for the RPL35A gene may be worth considering if someone has ongoing low red blood cell counts starting in infancy or childhood, especially with slow growth or certain birth differences. It can also help when a rare inherited anemia called Diamond-Blackfan anemia runs in the family or when a child has this condition without a clear cause.
A genetic result is only one part of your health story
Genetic results can be informative, yet how much they explain depends on the condition and on the kind of variant identified. Over time, the body is shaped by many factors, including lifestyle, environment, age, and medical history. With some conditions, particularly those affected by many genes, genetic findings provide context rather than certainty and make the most sense when considered with the rest of a person’s care. In other situations, a genetic finding may give a clear answer. For things like medication response, genetic results can also help put personal experiences in context.
Pharmacogenetics
How variants shape your response to medicine
Genetic variation can affect how people respond to medicines. Small differences in genes can change how the body breaks down a drug, moves it through the body, or reacts to it at its target. This helps explain why the same treatment works well for one person, has little effect in another, or causes more side effects in someone who is more sensitive.
What is Pharmacogenetics?
Pharmacogenetics examines how genetic differences can affect a person’s response to medications. It looks at gene-drug patterns to help explain why the same treatment may work differently from one person to another. For many medicines, genes influence how strongly a drug works or how the body handles it. This information can support more informed, more individualized treatment decisions. To explore this subject in greater detail, you can learn more in the LearnHub.
Drugs influenced by the RPL35A gene
When should I seek medical advice?
There is not yet a broadly confirmed role for this gene in predicting how medicines will work, so questions about side effects, treatment response, or medication changes are best discussed with your doctor.