science

Methylamine dehydrogenase (amicyanin)

Methylamine dehydrogenase (amicyanin) is a science 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 Methylamine dehydrogenase (amicyanin) rather than just read about it. In short: Methylamine dehydrogenase (amicyanin) (EC 1.4.9.1, MADH, amine dehydrogenase, primary-amine dehydrogenase, methylamine:amicyanin oxidoreductase (deaminating)) catalyzes the reduction of copper-dependent electron-carrier amicyanin via oxidation of methylamine to formaldehyde. This reaction requires the post-translational formation of a tryptophan tryptophylquinone (TTQ) cofactor.

Key takeaways

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

Reference excerpt

Methylamine dehydrogenase (amicyanin) (EC 1.4.9.1, MADH, amine dehydrogenase, primary-amine dehydrogenase, methylamine:amicyanin oxidoreductase (deaminating)) catalyzes the reduction of copper-dependent electron-carrier amicyanin via oxidation of methylamine to formaldehyde.

This reaction requires the post-translational formation of a tryptophan tryptophylquinone (TTQ) cofactor. MADH forms a tetramer of two light-chain and two heavy-chain protomers. The TTQ cofactor is located in the light-chain and is formed from oxidative coupling between Trp57 and Trp108 (Paracoccus denitrificans numbering) catalyzed by the diheme enzyme MauG. In P. denitrificans, methylamine dehydrogenase transiently forms a ternary complex to catalyze methylamine-dependent cytochrome c-551i reduction. Within this complex, electrons are transferred from the TTQ cofactor of MADH to the Type 1 copper center of amicyanin, and then to the heme of the cytochrome.

References

External links methylamine+dehydrogenase at the U.S. National Library of Medicine Medical Subject Headings (MeSH)

Illustrations

Worked examples

Example 1 — a first encounter with Methylamine dehydrogenase (amicyanin)

Start with the simplest possible case. Write down what Methylamine dehydrogenase (amicyanin) claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, 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 Methylamine dehydrogenase (amicyanin) 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 Methylamine dehydrogenase (amicyanin) 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 Methylamine dehydrogenase (amicyanin)

In research: Methylamine dehydrogenase (amicyanin) appears in science 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 Methylamine dehydrogenase (amicyanin) 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: Methylamine dehydrogenase (amicyanin) is common in secondary-school and first-year university syllabi. It links to neighbouring topics EC 1.4.9, Enzyme stubs, so understanding it makes those chapters shorter.
In everyday life: Look for Methylamine dehydrogenase (amicyanin) 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 Methylamine dehydrogenase (amicyanin) in 20 minutes

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

Frequently asked questions

What is Methylamine dehydrogenase (amicyanin) in simple terms?

Why does Methylamine dehydrogenase (amicyanin) matter?

Because it connects several science 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 Methylamine dehydrogenase (amicyanin)?

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 Methylamine dehydrogenase (amicyanin).