biology

TRIM23

TRIM23 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 TRIM23 rather than just read about it. In short: GTP-binding protein ARD-1 is a protein that in humans is encoded by the TRIM23 gene. Function The protein encoded by this gene is a member of the tripartite motif (TRIM) family.

Key takeaways

TRIM23 belongs to biology; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect TRIM23 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of TRIM23 from memory before moving on to harder problems.

Reference excerpt

GTP-binding protein ARD-1 is a protein that in humans is encoded by the TRIM23 gene.

Function The protein encoded by this gene is a member of the tripartite motif (TRIM) family. The TRIM motif includes three zinc-binding domains, a RING, a B-box type 1 and a B-box type 2, and a coiled-coil region. This protein is also a member of the ADP ribosylation factor family of guanine nucleotide-binding family of proteins. Its carboxy terminus contains an ADP-ribosylation factor domain and a guanine nucleotide binding site, while the amino terminus contains a GTPase activating protein domain which acts on the guanine nucleotide binding site. The protein localizes to lysosomes and the Golgi apparatus. It plays a role in the formation of intracellular transport vesicles, their movement from one compartment to another, and phospholipase D activation. Three alternatively spliced transcript variants for this gene have been described.

Interactions TRIM23 has been shown to interact with TRIM31, TRIM29 and PSCD1.

References

Illustrations

Worked examples

Example 1 — a first encounter with TRIM23

Start with the simplest possible case. Write down what TRIM23 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 TRIM23 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 TRIM23 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 TRIM23

In research: TRIM23 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 TRIM23 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: TRIM23 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Genes on human chromosome 5, Human chromosome 5 gene stubs, so understanding it makes those chapters shorter.
In everyday life: Look for TRIM23 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 TRIM23 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what TRIM23 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 TRIM23 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is TRIM23 in simple terms?

GTP-binding protein ARD-1 is a protein that in humans is encoded by the TRIM23 gene. Function The protein encoded by this gene is a member of the tripartite motif (TRIM) family.

Why does TRIM23 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 TRIM23?

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 TRIM23.