biology

Protein geranylgeranyltransferase type I subunit beta

Protein geranylgeranyltransferase type I subunit beta 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 Protein geranylgeranyltransferase type I subunit beta rather than just read about it. In short: Protein geranylgeranyltransferase type I subunit beta is a protein that in humans is encoded by the PGGT1B gene. Function Protein geranylgeranyltransferase type I (GGTase-I) transfers a geranylgeranyl group to the cysteine residue of candidate proteins containing a C-terminal CAAX motif in which 'A' is an aliphatic amino acid and 'X' is leucine (summarized by Zhang et al., 1994 [PubMed 8106351]).

Key takeaways

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

Reference excerpt

Protein geranylgeranyltransferase type I subunit beta is a protein that in humans is encoded by the PGGT1B gene.

Function Protein geranylgeranyltransferase type I (GGTase-I) transfers a geranylgeranyl group to the cysteine residue of candidate proteins containing a C-terminal CAAX motif in which 'A' is an aliphatic amino acid and 'X' is leucine (summarized by Zhang et al., 1994 [PubMed 8106351]). The enzyme is composed of a 48-kD alpha subunit (FNTA; MIM 134635) and a 43-kD beta subunit, encoded by the PGGT1B gene. The FNTA gene encodes the alpha subunit for both GGTase-I and the related enzyme farnesyltransferase.[supplied by OMIM, Mar 2010].

References

Illustrations

Worked examples

Example 1 — a first encounter with Protein geranylgeranyltransferase type I subunit beta

Start with the simplest possible case. Write down what Protein geranylgeranyltransferase type I subunit beta 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 Protein geranylgeranyltransferase type I subunit beta 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 Protein geranylgeranyltransferase type I subunit beta 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 Protein geranylgeranyltransferase type I subunit beta

In research: Protein geranylgeranyltransferase type I subunit beta 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 Protein geranylgeranyltransferase type I subunit beta 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: Protein geranylgeranyltransferase type I subunit beta is common in secondary-school and first-year university syllabi. It links to neighbouring topics Genes on human chromosome 5, Human chromosome 5 gene stubs, so understanding it makes those chapters shorter.
In everyday life: Look for Protein geranylgeranyltransferase type I subunit beta 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 Protein geranylgeranyltransferase type I subunit beta in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Protein geranylgeranyltransferase type I subunit beta means in your own words.
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Frequently asked questions

What is Protein geranylgeranyltransferase type I subunit beta in simple terms?

Protein geranylgeranyltransferase type I subunit beta is a protein that in humans is encoded by the PGGT1B gene. Function Protein geranylgeranyltransferase type I (GGTase-I) transfers a geranylgeranyl group to the cysteine residue of candidate proteins containing a C-terminal CAAX motif in which 'A…

Why does Protein geranylgeranyltransferase type I subunit beta 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 Protein geranylgeranyltransferase type I subunit beta?

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 Protein geranylgeranyltransferase type I subunit beta.