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Thymidylate synthase (FAD)

Thymidylate synthase (FAD) 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 Thymidylate synthase (FAD) rather than just read about it. In short: In enzymology, a thymidylate synthase (FAD) (EC 2.1.1.148) is an enzyme that catalyzes the chemical reaction 5,10-methylenetetrahydrofolate + dUMP + FADH2 ⇌ {\displaystyle \rightleftharpoons } dTMP + tetrahydrofolate + FAD The 3 substrates of this enzyme are 5,10-methylenetetrahydrofolate, dUMP, and FADH2, whereas its 3 products are dTMP, tetrahydrofolate, and FAD. This enzyme belongs to the family of transferases…

Thymidylate synthase (FAD) — main illustration
Thymidylate synthase (FAD) — illustration

Key takeaways

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

Reference excerpt

In enzymology, a thymidylate synthase (FAD) (EC 2.1.1.148) is an enzyme that catalyzes the chemical reaction

5,10-methylenetetrahydrofolate + dUMP + FADH2 ⇌ {\displaystyle \rightleftharpoons } dTMP + tetrahydrofolate + FAD The 3 substrates of this enzyme are 5,10-methylenetetrahydrofolate, dUMP, and FADH2, whereas its 3 products are dTMP, tetrahydrofolate, and FAD. This enzyme belongs to the family of transferases, to be specific those transferring one-carbon group methyltransferases. The systematic name of this enzyme class is 5,10-methylenetetrahydrofolate,FADH2:dUMP C-methyltransferase. Other names in common use include Thy1, and ThyX. This enzyme participates in pyrimidine metabolism and one carbon pool by folate. Most organisms, including humans, use the thyA- or TYMS-encoded classic thymidylate synthase whereas some bacteria use the similar flavin-dependent thymidylate synthase (FDTS) instead.

Structural studies As of late 2007, 3 structures have been solved for this class of enzymes, with PDB accession codes PDB: 2AF6​, PDB: 2CFA​, and PDB: 2GQ2​.

See also Thymidylate synthetase

References

Myllykallio H, Lipowski G, Leduc D, Filee J, Forterre P, Liebl U (2002). "An alternative flavin-dependent mechanism for thymidylate synthesis". Science. 297 (5578): 105–7. Bibcode:2002Sci...297..105M. doi:10.1126/science.1072113. PMID 12029065. S2CID 12592540.

Illustrations

Thymidylate synthase (FAD) illustration

Worked examples

Example 1 — a first encounter with Thymidylate synthase (FAD)

Start with the simplest possible case. Write down what Thymidylate synthase (FAD) 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 Thymidylate synthase (FAD) 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 Thymidylate synthase (FAD) 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 Thymidylate synthase (FAD)

In research
Thymidylate synthase (FAD) 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 Thymidylate synthase (FAD) 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
Thymidylate synthase (FAD) is common in secondary-school and first-year university syllabi. It links to neighbouring topics EC 2.1.1, EC 2.1 stubs, Enzymes of known structure, so understanding it makes those chapters shorter.
In everyday life
Look for Thymidylate synthase (FAD) 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 Thymidylate synthase (FAD) in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Thymidylate synthase (FAD) means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Thymidylate synthase (FAD) out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Thymidylate synthase (FAD) in simple terms?

In enzymology, a thymidylate synthase (FAD) (EC 2.1.1.148) is an enzyme that catalyzes the chemical reaction 5,10-methylenetetrahydrofolate + dUMP + FADH2 ⇌ {\displaystyle \rightleftharpoons } dTMP + tetrahydrofolate + FAD The 3 substrates of this enzyme are 5,10-methylenetetrahydrofolate, dUMP, an…

Why does Thymidylate synthase (FAD) 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 Thymidylate synthase (FAD)?

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 Thymidylate synthase (FAD).

Tags

  • EC 2.1.1
  • EC 2.1 stubs
  • Enzymes of known structure

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