engineering

Long-chain-enoyl-CoA hydratase

Long-chain-enoyl-CoA hydratase is a engineering 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 Long-chain-enoyl-CoA hydratase rather than just read about it. In short: The enzyme long-chain-enoyl-CoA hydratase (EC 4.2.1.74) catalyzes the chemical reaction (3S)-3-hydroxyacyl-CoA ⇌ {\displaystyle \rightleftharpoons } trans-2-enoyl-CoA + H2O This enzyme belongs to the family of lyases, specifically the hydro-lyases, which cleave carbon-oxygen bonds. The systematic name of this enzyme class is long-chain-(3S)-3-hydroxyacyl-CoA hydro-lyase.

Key takeaways

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

Reference excerpt

The enzyme long-chain-enoyl-CoA hydratase (EC 4.2.1.74) catalyzes the chemical reaction

(3S)-3-hydroxyacyl-CoA ⇌ {\displaystyle \rightleftharpoons } trans-2-enoyl-CoA + H2O This enzyme belongs to the family of lyases, specifically the hydro-lyases, which cleave carbon-oxygen bonds. The systematic name of this enzyme class is long-chain-(3S)-3-hydroxyacyl-CoA hydro-lyase. This enzyme is also called long-chain enoyl coenzyme A hydratase. This enzyme participates in fatty acid elongation in mitochondria and fatty acid metabolism.

References

Fong JC, Schulz H (1977). "Purification and properties of pig heart crotonase and the presence of short chain and long chain enoyl coenzyme A hydratases in pig and guinea pig tissues". J. Biol. Chem. 252 (2): 542–7. doi:10.1016/S0021-9258(17)32751-5. PMID 833142. Schulz H (1974). "Long chain enoyl coenzyme A hydratase from pig heart". J. Biol. Chem. 249 (9): 2704–9. doi:10.1016/S0021-9258(19)42686-0. PMID 4828315.

Worked examples

Example 1 — a first encounter with Long-chain-enoyl-CoA hydratase

Start with the simplest possible case. Write down what Long-chain-enoyl-CoA hydratase claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In engineering, 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 Long-chain-enoyl-CoA hydratase 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 Long-chain-enoyl-CoA hydratase 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 Long-chain-enoyl-CoA hydratase

In research: Long-chain-enoyl-CoA hydratase appears in engineering 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 Long-chain-enoyl-CoA hydratase 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: Long-chain-enoyl-CoA hydratase is common in secondary-school and first-year university syllabi. It links to neighbouring topics EC 4.2.1, EC 4.2 stubs, Enzymes of unknown structure, so understanding it makes those chapters shorter.
In everyday life: Look for Long-chain-enoyl-CoA hydratase 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 Long-chain-enoyl-CoA hydratase in 20 minutes

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

Frequently asked questions

What is Long-chain-enoyl-CoA hydratase in simple terms?

The enzyme long-chain-enoyl-CoA hydratase (EC 4.2.1.74) catalyzes the chemical reaction (3S)-3-hydroxyacyl-CoA ⇌ {\displaystyle \rightleftharpoons } trans-2-enoyl-CoA + H2O This enzyme belongs to the family of lyases, specifically the hydro-lyases, which cleave carbon-oxygen bonds. The systematic n…

Why does Long-chain-enoyl-CoA hydratase matter?

Because it connects several engineering 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 Long-chain-enoyl-CoA hydratase?

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 Long-chain-enoyl-CoA hydratase.