biology

GPR32

GPR32 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 GPR32 rather than just read about it. In short: G protein-coupled receptor 32, also known as GPR32 or the RvD1 receptor, is a human receptor (biochemistry) belonging to the rhodopsin-like subfamily of G protein-coupled receptors. Gene The GPR32 was initially identified and defined by molecular cloning in 1998 as coding for an orphan receptor, i.e. a protein with an amino acid sequence similar to known receptors but having no known ligand(s) to which it responds a…

Key takeaways

GPR32 belongs to biology; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect GPR32 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of GPR32 from memory before moving on to harder problems.

Reference excerpt

G protein-coupled receptor 32, also known as GPR32 or the RvD1 receptor, is a human receptor (biochemistry) belonging to the rhodopsin-like subfamily of G protein-coupled receptors.

Gene The GPR32 was initially identified and defined by molecular cloning in 1998 as coding for an orphan receptor, i.e. a protein with an amino acid sequence similar to known receptors but having no known ligand(s) to which it responds and no known function. The projected amino acid sequence of GPR32, however, shared 35-39% amino acid identity with certain members of the chemotactic factor receptor family, i.e. 39% identity with Formyl peptide receptor 1, which is a receptor for N-Formylmethionine-leucyl-phenylalanine and related N-formyl peptide chemotactic factors, and 35% identity with Formyl peptide receptor 2, which likewise is also a receptor for N-formyl peptides but also a receptor for certain lipoxins which are arachidonic acid metabolites belonging to a set of specialized proresolving mediators that act to resolve or inhibit inflammatory reactions. GPR32 mapped to chromosomal 19, region q13.3. There are no mouse or other orthologs of GPR32.

Receptor The GPR32 protein is a G protein coupled receptor although the specific G protein subtypes which it activates has not yet been reported. GPR32 is expressed in human blood neutrophils, certain types of blood lymphocytes (i.e. activated CD8+ cells, CD4+ T cells, and T helper 17 cells), tissue macrophages, small airway epithelial cells, and adipose tissue. When expressed in Chinese hamster ovary cells, GPR32 inhibits the Cyclic adenosine monophosphate signaling pathway under both baseline and forskolin-stimulated conditions indicating that it is a member of the class of orphan G protein coupled receptors that possesses constitutive signaling activity. At least 6 members of the D series of resolvins (RvDs) viz., RvD1, RvD2m AT-RVD1, RvD3, AT-RvD3, and RvD5, activate their target cells through this receptor; these results have led to naming GPR32 the RVD1 receptor (see resolvin mechanisms of action). RvDs are members of the specialized proresolving mediators (SPM) class of polyunsaturated fatty acid metabolites. RVDs are metabolites of the omega-3 fatty acid, docosahexaenoic acid (DHA), and, along with other SRMs contribute to the inhibition and resolution of a diverse range of inflammation and inflammation-related responses as well as to the healing of these inflammatory lesions in animals and humans. The metabolism of DHA to RVD's and the activation of GPR32 by these RVD's are proposed to be one mechanism by which omega-3 fatty acids may ameliorate inflammation as well as various inflammation-based and other diseases.

Ligands Agonists Resolvins - Resolvin D1, Resolvin D3 and Resolvin D5 NCGC00135472

References

Illustrations

Worked examples

Example 1 — a first encounter with GPR32

Start with the simplest possible case. Write down what GPR32 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 GPR32 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 GPR32 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 GPR32

In research: GPR32 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 GPR32 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: GPR32 is common in secondary-school and first-year university syllabi. It links to neighbouring topics G protein-coupled receptors, Genes on human chromosome 19, Transmembrane receptor stubs, so understanding it makes those chapters shorter.
In everyday life: Look for GPR32 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 GPR32 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what GPR32 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 GPR32 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is GPR32 in simple terms?

G protein-coupled receptor 32, also known as GPR32 or the RvD1 receptor, is a human receptor (biochemistry) belonging to the rhodopsin-like subfamily of G protein-coupled receptors. Gene The GPR32 was initially identified and defined by molecular cloning in 1998 as coding for an orphan receptor, i…

Why does GPR32 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 GPR32?

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 GPR32.