biology

SH3GLB1

SH3GLB1 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 SH3GLB1 rather than just read about it. In short: Endophilin-B1 is a protein that in humans is encoded by the SH3GLB1 gene. Endophilin-B1 belongs to the Bin/Amphiphysin/Rvs167 (BAR) family of proteins and plays a critical role in mitochondrial fission and fusion, as well as in autophagy and apoptosis.

Key takeaways

SH3GLB1 belongs to biology; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect SH3GLB1 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of SH3GLB1 from memory before moving on to harder problems.

Reference excerpt

Endophilin-B1 is a protein that in humans is encoded by the SH3GLB1 gene. Endophilin-B1 belongs to the Bin/Amphiphysin/Rvs167 (BAR) family of proteins and plays a critical role in mitochondrial fission and fusion, as well as in autophagy and apoptosis. Loss of functional endophilin-B1 is seen in many different forms of cancer. The link between carcinogenesis and dysregulation of cell death pathways suggests that endophilin-B1 serves a critical tumor suppressor role in the cell, although the underlying mechanisms are not known.

Structure

In the presence of model biological membranes, endophilin-B1 dimers assemble into helical scaffolds around the membrane and drive its tubulation.

Interactions In addition to the membrane binding and remodeling properties endophilin-B1 shares with many other BAR proteins, endophilin-B1 interacts with the pro-apoptotic factor Bcl-2-associated X protein (Bax) and SH3GLB2. It has also been shown to interact with a wide variety of proteins through a canonical SH3 domain that enables PxxP motif-containing protein interactions, including Beclin-1, amphiphysin-1, amphiphysin-2, and huntingtin.

References

Illustrations

Worked examples

Example 1 — a first encounter with SH3GLB1

Start with the simplest possible case. Write down what SH3GLB1 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 SH3GLB1 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 SH3GLB1 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 SH3GLB1

In research: SH3GLB1 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 SH3GLB1 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: SH3GLB1 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Genes on human chromosome 1, Human chromosome 1 gene stubs, so understanding it makes those chapters shorter.
In everyday life: Look for SH3GLB1 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 SH3GLB1 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what SH3GLB1 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 SH3GLB1 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is SH3GLB1 in simple terms?

Why does SH3GLB1 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 SH3GLB1?

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 SH3GLB1.