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biology

IL3RA

IL3RA is a biology topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand IL3RA rather than just read about it. In short: Interleukin 3 receptor, alpha (low affinity) (IL3RA), also known as CD123 (Cluster of Differentiation 123), is a human gene. Function The protein encoded by this gene is an interleukin 3 specific subunit of a heterodimeric cytokine receptor.

IL3RA — main illustration
IL3RA — illustration

Key takeaways

  • IL3RA belongs to biology; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect IL3RA to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of IL3RA from memory before moving on to harder problems.

Reference excerpt

Interleukin 3 receptor, alpha (low affinity) (IL3RA), also known as CD123 (Cluster of Differentiation 123), is a human gene.

Function The protein encoded by this gene is an interleukin 3 specific subunit of a heterodimeric cytokine receptor. The receptor is composed of a ligand specific alpha subunit and a signal transducing beta subunit shared by the receptors for interleukin 3 (IL3), colony stimulating factor 2 (CSF2/GM-CSF), and interleukin 5 (IL5). The binding of this protein to IL3 depends on the beta subunit. The beta subunit is activated by the ligand binding, and is required for the biological activities of IL3. This gene and the gene encoding the colony stimulating factor 2 receptor alpha chain (CSF2RA) form a cytokine receptor gene cluster in a X-Y pseudoautosomal region on chromosomes X or Y.

Interactions IL3RA has been shown to interact with Interleukin 3.

See also Cluster of differentiation

References

Further reading

External links IL3RA+protein,+human at the U.S. National Library of Medicine Medical Subject Headings (MeSH) This article incorporates text from the United States National Library of Medicine, which is in the public domain.

Illustrations

IL3RA illustration
IL3RA illustration
IL3RA illustration
IL3RA illustration
IL3RA illustration

Worked examples

Example 1 — a first encounter with IL3RA

Start with the simplest possible case. Write down what IL3RA claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In biology, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to IL3RA before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about IL3RA ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of IL3RA

In research
IL3RA appears in biology research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses IL3RA in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
IL3RA is common in secondary-school and first-year university syllabi. It links to neighbouring topics Clusters of differentiation, Genes on human chromosome X, Membrane protein stubs, so understanding it makes those chapters shorter.
In everyday life
Look for IL3RA outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study IL3RA in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what IL3RA means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain IL3RA out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is IL3RA in simple terms?

Interleukin 3 receptor, alpha (low affinity) (IL3RA), also known as CD123 (Cluster of Differentiation 123), is a human gene. Function The protein encoded by this gene is an interleukin 3 specific subunit of a heterodimeric cytokine receptor.

Why does IL3RA matter?

Because it connects several biology ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study IL3RA?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on IL3RA.

Tags

  • Clusters of differentiation
  • Genes on human chromosome X
  • Membrane protein stubs

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