ArticleslgStudy

biology

UNC13B

UNC13B 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 UNC13B rather than just read about it. In short: Protein unc-13 homolog B is a protein that in humans is encoded by the UNC13B gene and in mice by the Munc13-2 gene Function This gene is expressed in the kidney cortical epithelial cells and is upregulated by hyperglycemia. The encoded protein shares a high level of similarity to the rat homolog, and contains 3 C2 domains and a diacylglycerol-binding C1 domain.

UNC13B — main illustration
UNC13B — illustration

Key takeaways

  • UNC13B belongs to biology; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect UNC13B to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of UNC13B from memory before moving on to harder problems.

Reference excerpt

Protein unc-13 homolog B is a protein that in humans is encoded by the UNC13B gene and in mice by the Munc13-2 gene

Function This gene is expressed in the kidney cortical epithelial cells and is upregulated by hyperglycemia. The encoded protein shares a high level of similarity to the rat homolog, and contains 3 C2 domains and a diacylglycerol-binding C1 domain. Hyperglycemia increases the levels of diacylglycerol, which has been shown to induce apoptosis in cells transfected with this gene and thus contribute to the renal cell complications of hyperglycemia. Studies in other species also indicate a role for this protein in the priming step of synaptic vesicle exocytosis.

Interactions UNC13B has been shown to interact with:

DOC2A, RIMS1, SPTBN2, STX1A, and STX1B.

References

Further reading

Illustrations

UNC13B illustration
UNC13B illustration
UNC13B illustration
UNC13B illustration

Worked examples

Example 1 — a first encounter with UNC13B

Start with the simplest possible case. Write down what UNC13B 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 UNC13B 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 UNC13B 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 UNC13B

In research
UNC13B 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 UNC13B 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
UNC13B is common in secondary-school and first-year university syllabi. It links to neighbouring topics Genes on human chromosome 9, Human chromosome 9 gene stubs, so understanding it makes those chapters shorter.
In everyday life
Look for UNC13B 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 “UNC13B” →

Affiliate

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

How to study UNC13B in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what UNC13B 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 UNC13B out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is UNC13B in simple terms?

Protein unc-13 homolog B is a protein that in humans is encoded by the UNC13B gene and in mice by the Munc13-2 gene Function This gene is expressed in the kidney cortical epithelial cells and is upregulated by hyperglycemia. The encoded protein shares a high level of similarity to the rat homolog…

Why does UNC13B 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 UNC13B?

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 UNC13B.

Tags

  • Genes on human chromosome 9
  • Human chromosome 9 gene stubs

Keep exploring