biology

VIPR2

VIPR2 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 VIPR2 rather than just read about it. In short: Vasoactive intestinal peptide receptor 2 also known as VPAC2, is a G-protein coupled receptor that in humans is encoded by the VIPR2 gene. Tissue distribution VIPR2 is expressed in the uterus, prostate, smooth muscle of the gastrointestinal tract, seminal vesicles and skin, blood vessels and thymus.

Key takeaways

VIPR2 belongs to biology; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect VIPR2 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of VIPR2 from memory before moving on to harder problems.

Reference excerpt

Vasoactive intestinal peptide receptor 2 also known as VPAC2, is a G-protein coupled receptor that in humans is encoded by the VIPR2 gene.

Tissue distribution VIPR2 is expressed in the uterus, prostate, smooth muscle of the gastrointestinal tract, seminal vesicles and skin, blood vessels and thymus. VIPR2 is also expressed in the cerebellum.

Function Vasoactive intestinal peptide (VIP) and pituitary adenylate cyclase activating polypeptide (PACAP) are homologous peptides that function as neurotransmitters and neuroendocrine hormones. While the receptors for VIP (VIRP 1 and 2) and PACAP (ADCYAP1R1) share homology, they differ in their substrate specificities and expression patterns. VIPR2 transduction results in upregulation of adenylate cyclase activity. Furthermore, VIPR2 mediates the anti-inflammatory effects of VIP. Research using VPAC2 knockout mice implicate it in the function of the circadian clock, growth, basal energy expenditure and male reproduction. VIPR2 and/or PAC1 receptor activation is involved in cutaneous active vasodilation in humans. Splice variants may modify the immunoregulatory contributions of the VIP-VIPR2 axis. VIPR2 may contribute to autoregulation and/or coupling within the suprachiasmatic nucleus (SCN) core and to control of the SCN shell.

Clinical significance VIPR2 may play a role in schizophrenia. The abnormal expression of VIPR2 messenger RNA in gallbladder tissue may play a role in the formation of gall stones and polyps.

See also Vasoactive intestinal peptide receptor VIPR1

References

Illustrations

Worked examples

Example 1 — a first encounter with VIPR2

Start with the simplest possible case. Write down what VIPR2 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 VIPR2 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 VIPR2 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 VIPR2

In research: VIPR2 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 VIPR2 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: VIPR2 is common in secondary-school and first-year university syllabi. It links to neighbouring topics G protein-coupled receptors, Genes on human chromosome 7, so understanding it makes those chapters shorter.
In everyday life: Look for VIPR2 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 VIPR2 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what VIPR2 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 VIPR2 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is VIPR2 in simple terms?

Vasoactive intestinal peptide receptor 2 also known as VPAC2, is a G-protein coupled receptor that in humans is encoded by the VIPR2 gene. Tissue distribution VIPR2 is expressed in the uterus, prostate, smooth muscle of the gastrointestinal tract, seminal vesicles and skin, blood vessels and thymus.

Why does VIPR2 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 VIPR2?

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 VIPR2.