engineering

Methylenetetrahydromethanopterin dehydrogenase

Methylenetetrahydromethanopterin dehydrogenase 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 Methylenetetrahydromethanopterin dehydrogenase rather than just read about it. In short: In enzymology, a methylenetetrahydromethanopterin dehydrogenase (EC 1.5.98.1) is an enzyme that catalyzes the chemical reaction 5,10-methylenetetrahydromethanopterin + coenzyme F420 ⇌ {\displaystyle \rightleftharpoons } 5,10-methenyltetrahydromethanopterin + reduced coenzyme F420 Thus, the two substrates of this enzyme are 5,10-methylenetetrahydromethanopterin and coenzyme F420, whereas its two products are 5,10-met…

Key takeaways

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Reference excerpt

In enzymology, a methylenetetrahydromethanopterin dehydrogenase (EC 1.5.98.1) is an enzyme that catalyzes the chemical reaction

5,10-methylenetetrahydromethanopterin + coenzyme F420 ⇌ {\displaystyle \rightleftharpoons } 5,10-methenyltetrahydromethanopterin + reduced coenzyme F420 Thus, the two substrates of this enzyme are 5,10-methylenetetrahydromethanopterin and coenzyme F420, whereas its two products are 5,10-methenyltetrahydromethanopterin and reduced coenzyme F420. This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-NH group of donors with other acceptors. The systematic name of this enzyme class is 5,10-methylenetetrahydromethanopterin:coenzyme-F420 oxidoreductase. Other names in common use include N5,N10-methylenetetrahydromethanopterin dehydrogenase, and 5,10-methylenetetrahydromethanopterin dehydrogenase. This enzyme participates in folate biosynthesis.

Structural studies As of late 2007, 4 structures have been solved for this class of enzymes, with PDB accession codes PDB: 1QV9, PDB: 1U6I, PDB: 1U6J, and PDB: 1U6K.

References

Hartzell PL, Zvilius G, Escalante-Semerena JC, Donnelly MI (1985). "Coenzyme F420 dependence of the methylenetetrahydromethanopterin dehydrogenase of Methanobacterium thermoautotrophicum". Biochem. Biophys. Res. Commun. 133 (3): 884–90. doi:10.1016/0006-291X(85)91218-5. PMID 4084309. GD; Geerts, WJ; Keltjens, JT; Van Der Drift, C; Vogels, GD (1991). "Purification and properties of 5,10-methylenetetrahydromethanopterin dehydrogenase and 5,10-methylenetetrahydromethanopterin reductase, two coenzyme F420-dependent enzymes, from Methanosarcina barkeri". Biochim. Biophys. Acta. 1079 (3): 293–302. doi:10.1016/0167-4838(91)90072-8. PMID 1911853.

Worked examples

Example 1 — a first encounter with Methylenetetrahydromethanopterin dehydrogenase

Start with the simplest possible case. Write down what Methylenetetrahydromethanopterin dehydrogenase 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 Methylenetetrahydromethanopterin dehydrogenase 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 Methylenetetrahydromethanopterin dehydrogenase 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 Methylenetetrahydromethanopterin dehydrogenase

In research: Methylenetetrahydromethanopterin dehydrogenase 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 Methylenetetrahydromethanopterin dehydrogenase 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: Methylenetetrahydromethanopterin dehydrogenase is common in secondary-school and first-year university syllabi. It links to neighbouring topics EC 1.5.98, Enzymes of known structure, Oxidoreductase stubs, so understanding it makes those chapters shorter.
In everyday life: Look for Methylenetetrahydromethanopterin dehydrogenase 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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Frequently asked questions

What is Methylenetetrahydromethanopterin dehydrogenase in simple terms?

In enzymology, a methylenetetrahydromethanopterin dehydrogenase (EC 1.5.98.1) is an enzyme that catalyzes the chemical reaction 5,10-methylenetetrahydromethanopterin + coenzyme F420 ⇌ {\displaystyle \rightleftharpoons } 5,10-methenyltetrahydromethanopterin + reduced coenzyme F420 Thus, the two subs…

Why does Methylenetetrahydromethanopterin dehydrogenase 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 Methylenetetrahydromethanopterin dehydrogenase?

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 Methylenetetrahydromethanopterin dehydrogenase.