biology

Infected cell protein 34.5

Infected cell protein 34.5 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 Infected cell protein 34.5 rather than just read about it. In short: Infected cell protein 34.5 (ICP-34.5, ICP34.5) is a protein expressed by the γ34.5 gene in viruses such as herpes simplex virus; it blocks a cellular stress response to viral infection. It shares the C-terminal regulatory domain (InterPro: IPR019523) with protein phosphatase 1 subunit 15A/B.

Key takeaways

Infected cell protein 34.5 belongs to biology; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Infected cell protein 34.5 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Infected cell protein 34.5 from memory before moving on to harder problems.

Reference excerpt

Infected cell protein 34.5 (ICP-34.5, ICP34.5) is a protein expressed by the γ34.5 gene in viruses such as herpes simplex virus; it blocks a cellular stress response to viral infection. It shares the C-terminal regulatory domain (InterPro: IPR019523) with protein phosphatase 1 subunit 15A/B. When a cell is infected with a virus, protein kinase R is activated by the virus' double-stranded DNA,. Protein kinase R then phosphorylates a protein called eukaryotic initiation factor-2A (eIF-2A), which inactivates eIF-2A. EIF-2A is required for translation so by shutting down eIF-2A, the cell prevents the virus from hijacking its own protein-making machinery. Viruses in turn evolved ICP34.5 to defeat the defense; it activates protein phosphatase-1A which dephosphorylates eIF-2A, allowing translation to occur again. A herpesvirus lacking the γ34.5 gene will not be able to replicate in normal cells because it cannot make proteins. The ICP34.5 deletion is useful for the construction of oncolytic herpes viruses, as cancer cells do not restrict replication as strongly.

Worked examples

Example 1 — a first encounter with Infected cell protein 34.5

Start with the simplest possible case. Write down what Infected cell protein 34.5 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 Infected cell protein 34.5 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 Infected cell protein 34.5 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 Infected cell protein 34.5

In research: Infected cell protein 34.5 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 Infected cell protein 34.5 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: Infected cell protein 34.5 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Viral nonstructural proteins, Virus stubs, so understanding it makes those chapters shorter.
In everyday life: Look for Infected cell protein 34.5 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.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “Infected cell protein 34.5” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Infected cell protein 34.5 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Infected cell protein 34.5 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 Infected cell protein 34.5 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Infected cell protein 34.5 in simple terms?

Why does Infected cell protein 34.5 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 Infected cell protein 34.5?

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 Infected cell protein 34.5.