engineering

Naphthalene 1,2-dioxygenase

Naphthalene 1,2-dioxygenase 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 Naphthalene 1,2-dioxygenase rather than just read about it. In short: Naphthalene 1,2-dioxygenase (EC 1.14.12.12) is an enzyme that catalyzes the chemical reaction The four substrates of this enzyme are naphthalene, reduced nicotinamide adenine dinucleotide (NADH), oxygen and a proton. Its products are (1R, 2S)-cis 1,2 dihydroxy-1,2-dihydronaphthalene and oxidised NAD+.

Key takeaways

Naphthalene 1,2-dioxygenase belongs to engineering; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Naphthalene 1,2-dioxygenase to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Naphthalene 1,2-dioxygenase from memory before moving on to harder problems.

Reference excerpt

Naphthalene 1,2-dioxygenase (EC 1.14.12.12) is an enzyme that catalyzes the chemical reaction

The four substrates of this enzyme are naphthalene, reduced nicotinamide adenine dinucleotide (NADH), oxygen and a proton. Its products are (1R, 2S)-cis 1,2 dihydroxy-1,2-dihydronaphthalene and oxidised NAD+. This enzyme is an oxidoreductase that uses molecular oxygen as oxidant and incorporates both its atoms into the starting material. The systematic name of this enzyme class is naphthalene,NADH:oxygen oxidoreductase (1,2-hydroxylating). Other names in common use include naphthalene dioxygenase, and naphthalene oxygenase. The enzyme is an iron–sulfur protein that contains ferredoxin and participates in metabolic pathways that degrade polycyclic aromatic hydrocarbons and ethylbenzene.

Structural studies As of late 2007, 18 structures have been solved for this class of enzymes, with PDB accession codes PDB: 1EG9, PDB: 1NDO, PDB: 1O7G, PDB: 1O7H, PDB: 1O7M, PDB: 1O7N, PDB: 1O7P, PDB: 1O7W, PDB: 1UUV, PDB: 1UUW, PDB: 2B1X, PDB: 2B24, PDB: 2HMJ, PDB: 2HMK, PDB: 2HML, PDB: 2HMM, PDB: 2HMN, and PDB: 2HMO.

References

Illustrations

Worked examples

Example 1 — a first encounter with Naphthalene 1,2-dioxygenase

Start with the simplest possible case. Write down what Naphthalene 1,2-dioxygenase 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 Naphthalene 1,2-dioxygenase 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 Naphthalene 1,2-dioxygenase 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 Naphthalene 1,2-dioxygenase

In research: Naphthalene 1,2-dioxygenase 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 Naphthalene 1,2-dioxygenase 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: Naphthalene 1,2-dioxygenase is common in secondary-school and first-year university syllabi. It links to neighbouring topics EC 1.14.12, EC 1.14 stubs, Enzymes of known structure, so understanding it makes those chapters shorter.
In everyday life: Look for Naphthalene 1,2-dioxygenase 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 Naphthalene 1,2-dioxygenase in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Naphthalene 1,2-dioxygenase means in your own words.
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Frequently asked questions

What is Naphthalene 1,2-dioxygenase in simple terms?

Naphthalene 1,2-dioxygenase (EC 1.14.12.12) is an enzyme that catalyzes the chemical reaction The four substrates of this enzyme are naphthalene, reduced nicotinamide adenine dinucleotide (NADH), oxygen and a proton. Its products are (1R, 2S)-cis 1,2 dihydroxy-1,2-dihydronaphthalene and oxidised NA…

Why does Naphthalene 1,2-dioxygenase 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 Naphthalene 1,2-dioxygenase?

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 Naphthalene 1,2-dioxygenase.