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biology

GRIN2D

GRIN2D 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 GRIN2D rather than just read about it. In short: Glutamate [NMDA] receptor subunit epsilon-4 is a protein that in humans is encoded by the GRIN2D gene. Function N-methyl-D-aspartate (NMDA) receptors are a class of ionotropic glutamate receptors.

GRIN2D — main illustration
GRIN2D — illustration

Key takeaways

  • GRIN2D belongs to biology; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect GRIN2D to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of GRIN2D from memory before moving on to harder problems.

Reference excerpt

Glutamate [NMDA] receptor subunit epsilon-4 is a protein that in humans is encoded by the GRIN2D gene.

Function N-methyl-D-aspartate (NMDA) receptors are a class of ionotropic glutamate receptors. NMDA channel has been shown to be involved in long-term potentiation, an activity-dependent increase in the efficiency of synaptic transmission thought to underlie certain kinds of memory and learning. NMDA receptor channels are heteromers composed of the key receptor subunit NMDAR1 (GRIN1) and 1 or more of the 4 NMDAR2 subunits: NMDAR2A (GRIN2A), NMDAR2B (GRIN2B), NMDAR2C (GRIN2C), and NMDAR2D (GRIN2D).

Interactions GRIN2D has been shown to interact with Interleukin 16.

See also Glutamate receptor NMDA receptor

References

Further reading

External links GRIN2D+protein,+human at the U.S. National Library of Medicine Medical Subject Headings (MeSH) This article incorporates text from the United States National Library of Medicine, which is in the public domain.

Illustrations

GRIN2D illustration
GRIN2D illustration
GRIN2D illustration
GRIN2D illustration
GRIN2D illustration

Worked examples

Example 1 — a first encounter with GRIN2D

Start with the simplest possible case. Write down what GRIN2D 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 GRIN2D 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 GRIN2D 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 GRIN2D

In research
GRIN2D 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 GRIN2D 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
GRIN2D is common in secondary-school and first-year university syllabi. It links to neighbouring topics Genes on human chromosome 19, Ionotropic glutamate receptors, Membrane protein stubs, so understanding it makes those chapters shorter.
In everyday life
Look for GRIN2D 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 GRIN2D in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what GRIN2D 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 GRIN2D out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is GRIN2D in simple terms?

Glutamate [NMDA] receptor subunit epsilon-4 is a protein that in humans is encoded by the GRIN2D gene. Function N-methyl-D-aspartate (NMDA) receptors are a class of ionotropic glutamate receptors.

Why does GRIN2D 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 GRIN2D?

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 GRIN2D.

Tags

  • Genes on human chromosome 19
  • Ionotropic glutamate receptors
  • Membrane protein stubs

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