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biology

ILF3

ILF3 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 ILF3 rather than just read about it. In short: Interleukin enhancer-binding factor 3 is a protein that in humans is encoded by the ILF3 gene. Function Nuclear factor of activated T-cells (NFAT) is a transcription factor required for T-cell expression of interleukin 2.

ILF3 — main illustration
ILF3 — illustration

Key takeaways

  • ILF3 belongs to biology; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect ILF3 to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of ILF3 from memory before moving on to harder problems.

Reference excerpt

Interleukin enhancer-binding factor 3 is a protein that in humans is encoded by the ILF3 gene.

Function Nuclear factor of activated T-cells (NFAT) is a transcription factor required for T-cell expression of interleukin 2. NFAT binds to a sequence in the IL2 enhancer known as the antigen receptor response element 2. In addition, NFAT can bind RNA and is an essential component for encapsidation and protein priming of hepatitis B viral polymerase. NFAT is a heterodimer of 45 kDa and 90 kDa proteins, the larger of which is the product of this gene. The encoded protein, which is primarily localized to ribosomes, probably regulates transcription at the level of mRNA elongation. At least three transcript variants encoding three different isoforms have been found for this gene.

Interactions ILF3 has been shown to interact with:

Small NF90/ILF3-associated RNAs (snaR) (~120 nucleotides long) and are known to interact with ILF3 double-stranded RNA-binding motifs. snaR-A is abundant in human testis and has been shown to associate with ribosomes in HeLa cells. snaR-A is present in human and gorilla but not in chimpanzee. Other snaR RNAs are found in African Great Apes (including chimpanzee and bonobo). ILF2 and ILF3 have been identified as autoantigens in mice with induced lupus, in canine systemic rheumatic autoimmune disease, and as a rare finding in humans with autoimmune disease.

References

Further reading

External links ILF3+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

ILF3 illustration
ILF3 illustration
ILF3 illustration
ILF3 illustration
ILF3 illustration

Worked examples

Example 1 — a first encounter with ILF3

Start with the simplest possible case. Write down what ILF3 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 ILF3 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 ILF3 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 ILF3

In research
ILF3 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 ILF3 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
ILF3 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Genes on human chromosome 19, Transcription factors, so understanding it makes those chapters shorter.
In everyday life
Look for ILF3 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 ILF3 in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what ILF3 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 ILF3 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is ILF3 in simple terms?

Interleukin enhancer-binding factor 3 is a protein that in humans is encoded by the ILF3 gene. Function Nuclear factor of activated T-cells (NFAT) is a transcription factor required for T-cell expression of interleukin 2.

Why does ILF3 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 ILF3?

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 ILF3.

Tags

  • Genes on human chromosome 19
  • Transcription factors

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