biology

Interleukin 5 receptor alpha subunit

Interleukin 5 receptor alpha subunit 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 Interleukin 5 receptor alpha subunit rather than just read about it. In short: Interleukin 5 receptor, alpha (IL5RA) also known as CD125 (Cluster of Differentiation 125) is a subunit of the Interleukin-5 receptor. IL5RA also denotes its human gene.

Key takeaways

Interleukin 5 receptor alpha subunit belongs to biology; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Interleukin 5 receptor alpha subunit to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Interleukin 5 receptor alpha subunit from memory before moving on to harder problems.

Reference excerpt

Interleukin 5 receptor, alpha (IL5RA) also known as CD125 (Cluster of Differentiation 125) is a subunit of the Interleukin-5 receptor. IL5RA also denotes its human gene.

Function The protein encoded by this gene is an interleukin 5 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 IL5 depends on the beta subunit. The beta subunit is activated by the ligand binding, and is required for the biological activities of IL5. This protein has been found to interact with syndecan binding protein (syntenin), which is required for IL5 mediated activation of the transcription factor SOX4. Six alternatively spliced transcript variants encoding three distinct isoforms have been reported.

Interactions Interleukin 5 receptor alpha subunit has been shown to interact with:

Interleukin 5, Janus kinase 2, Protein unc-119 homolog, and SDCBP

See also Cluster of differentiation Benralizumab Mepolizumab Reslizumab

References

Illustrations

Worked examples

Example 1 — a first encounter with Interleukin 5 receptor alpha subunit

Start with the simplest possible case. Write down what Interleukin 5 receptor alpha subunit 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 Interleukin 5 receptor alpha subunit 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 Interleukin 5 receptor alpha subunit 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 Interleukin 5 receptor alpha subunit

In research: Interleukin 5 receptor alpha subunit 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 Interleukin 5 receptor alpha subunit 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: Interleukin 5 receptor alpha subunit is common in secondary-school and first-year university syllabi. It links to neighbouring topics Clusters of differentiation, Genes on human chromosome 3, so understanding it makes those chapters shorter.
In everyday life: Look for Interleukin 5 receptor alpha subunit 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 Interleukin 5 receptor alpha subunit in 20 minutes

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

Frequently asked questions

What is Interleukin 5 receptor alpha subunit in simple terms?

Interleukin 5 receptor, alpha (IL5RA) also known as CD125 (Cluster of Differentiation 125) is a subunit of the Interleukin-5 receptor. IL5RA also denotes its human gene.

Why does Interleukin 5 receptor alpha subunit 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 Interleukin 5 receptor alpha subunit?

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 Interleukin 5 receptor alpha subunit.