biology

Receptor for activated C kinase 1

Receptor for activated C kinase 1 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 Receptor for activated C kinase 1 rather than just read about it. In short: Receptor for activated C kinase 1 (RACK1), also known as guanine nucleotide-binding protein subunit beta-2-like 1 (GNB2L1), is a 35 kDa protein that in humans is encoded by the RACK1 gene. Function RACK1 was originally isolated and identified as an intracellular protein receptor for protein kinase C, noting the significant homology to the beta subunit of heterotrimeric G proteins.

Key takeaways

Receptor for activated C kinase 1 belongs to biology; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Receptor for activated C kinase 1 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Receptor for activated C kinase 1 from memory before moving on to harder problems.

Reference excerpt

Receptor for activated C kinase 1 (RACK1), also known as guanine nucleotide-binding protein subunit beta-2-like 1 (GNB2L1), is a 35 kDa protein that in humans is encoded by the RACK1 gene.

Function RACK1 was originally isolated and identified as an intracellular protein receptor for protein kinase C, noting the significant homology to the beta subunit of heterotrimeric G proteins. Later studies established RACK1, and its yeast homolog Asc1, as a core ribosomal protein of the eukaryotic small (40S) ribosomal subunit. Much of the function of Asc1/RACK1 appears to result from its position on the 'head' of the 40S ribosomal subunit. Asc1/RACK1 participates in several aspects of eukaryotic translation and ribosome quality control, including IRES-mediated translation, non-stop decay, non-functional 18S ribosomal RNA decay, and frameshifting.

Interactions RACK1 is positioned at the solvent-exposed surface of the 40S ribosomal subunit, where it is held in place through contacts with both the 18S rRNA and other ribosomal proteins, including uS3, uS9, and eS17. Additionally, RACK1 has been shown to interact with:

See also Eukaryotic small ribosomal subunit (40S) Protein kinase C Heterotrimeric G protein

References

Illustrations

Worked examples

Example 1 — a first encounter with Receptor for activated C kinase 1

Start with the simplest possible case. Write down what Receptor for activated C kinase 1 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 Receptor for activated C kinase 1 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 Receptor for activated C kinase 1 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 Receptor for activated C kinase 1

In research: Receptor for activated C kinase 1 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 Receptor for activated C kinase 1 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: Receptor for activated C kinase 1 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Genes on human chromosome 5, Ribosomal proteins, so understanding it makes those chapters shorter.
In everyday life: Look for Receptor for activated C kinase 1 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 Receptor for activated C kinase 1 in 20 minutes

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Close the page and write down what Receptor for activated C kinase 1 means in your own words.
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Frequently asked questions

What is Receptor for activated C kinase 1 in simple terms?

Receptor for activated C kinase 1 (RACK1), also known as guanine nucleotide-binding protein subunit beta-2-like 1 (GNB2L1), is a 35 kDa protein that in humans is encoded by the RACK1 gene. Function RACK1 was originally isolated and identified as an intracellular protein receptor for protein kinase…

Why does Receptor for activated C kinase 1 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 Receptor for activated C kinase 1?

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 Receptor for activated C kinase 1.