engineering

Tetrahydrofolate synthase

Tetrahydrofolate synthase 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 Tetrahydrofolate synthase rather than just read about it. In short: In enzymology, a tetrahydrofolate synthase (EC 6.3.2.17) is an enzyme that catalyzes the chemical reaction ATP + tetrahydropteroyl-[gamma-Glu]n + L-glutamate ⇌ {\displaystyle \rightleftharpoons } ADP + phosphate + tetrahydropteroyl-[gamma-Glu]n+1 The 3 substrates of this enzyme are ATP, [[tetrahydropteroyl-[gamma-Glu]n]], and L-glutamate, whereas its 3 products are ADP, phosphate, and [[tetrahydropteroyl-[gamma-Glu]…

Key takeaways

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

Reference excerpt

In enzymology, a tetrahydrofolate synthase (EC 6.3.2.17) is an enzyme that catalyzes the chemical reaction

ATP + tetrahydropteroyl-[gamma-Glu]n + L-glutamate ⇌ {\displaystyle \rightleftharpoons } ADP + phosphate + tetrahydropteroyl-[gamma-Glu]n+1 The 3 substrates of this enzyme are ATP, [[tetrahydropteroyl-[gamma-Glu]n]], and L-glutamate, whereas its 3 products are ADP, phosphate, and [[tetrahydropteroyl-[gamma-Glu]n+1]]. This enzyme belongs to the family of ligases, specifically those forming carbon-nitrogen bonds as acid-D-amino-acid ligases (peptide synthases). The systematic name of this enzyme class is tetrahydropteroyl-gamma-polyglutamate:L-glutamate gamma-ligase (ADP-forming). This enzyme participates in folate biosynthesis.

Structural studies As of late 2007, 7 structures have been solved for this class of enzymes, with PDB accession codes PDB: 1FGS, PDB: 1JBV, PDB: 1JBW, PDB: 2GC5, PDB: 2GC6, PDB: 2GCA, and PDB: 2GCB.

References

Cichowicz DJ, Foo SK, Shane B (1981). "Folylpoly-gamma-glutamate synthesis by bacteria and mammalian cells". Mol. Cell. Biochem. 39: 209–28. doi:10.1007/BF00232575. PMID 6458762. S2CID 43985411. McGuire JJ, Bertino JR (1981). "Enzymatic synthesis and function of folylpolyglutamates". Mol. Cell. Biochem. 38 (Pt 1): 19–48. doi:10.1007/BF00235686. PMID 7027025. S2CID 9149947. Bognar AL, Osborne C, Shane B, Singer SC, Ferone R (1985). "Folylpoly-gamma-glutamate synthetase-dihydrofolate synthetase Cloning and high expression of the Escherichia coli folC gene and purification and properties of the gene product". J. Biol. Chem. 260 (9): 5625–30. doi:10.1016/S0021-9258(18)89069-X. PMID 2985605. R Rebeille F; Cherest, H; Jabrin, S; Grunwald, D; Surdin-Kerjan, Y; Douce, R; Rébeillé, F (2001). "Tetrahydrofolate biosynthesis in plants: molecular and functional characterization of dihydrofolate synthetase and three isoforms of folylpolyglutamate synthetase in Arabidopsis thaliana". Proc. Natl. Acad. Sci. U.S.A. 98 (26): 15360–5. Bibcode:2001PNAS...9815360R. doi:10.1073/pnas.261585098. PMC 65034. PMID 11752472. Cossins EA, Chen L (1997). "Folates and one-carbon metabolism in plants and fungi". Phytochemistry. 45 (3): 437–52. Bibcode:1997PChem..45..437C. doi:10.1016/S0031-9422(96)00833-3. PMID 9190084. Cherest H, Thomas D, Surdin-Kerjan Y (2000). "Polyglutamylation of folate coenzymes is necessary for methionine biosynthesis and maintenance of intact mitochondrial genome in Saccharomyces cerevisiae". J. Biol. Chem. 275 (19): 14056–63. doi:10.1074/jbc.275.19.14056. PMID 10799479.

Worked examples

Example 1 — a first encounter with Tetrahydrofolate synthase

Start with the simplest possible case. Write down what Tetrahydrofolate synthase 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 Tetrahydrofolate synthase 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 Tetrahydrofolate synthase 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 Tetrahydrofolate synthase

In research: Tetrahydrofolate synthase 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 Tetrahydrofolate synthase 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: Tetrahydrofolate synthase is common in secondary-school and first-year university syllabi. It links to neighbouring topics EC 6.3.2, Enzymes of known structure, Ligase stubs, so understanding it makes those chapters shorter.
In everyday life: Look for Tetrahydrofolate synthase 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 Tetrahydrofolate synthase in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Tetrahydrofolate synthase means in your own words.
Compare your version with the excerpt and mark what you missed.
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Frequently asked questions

What is Tetrahydrofolate synthase in simple terms?

In enzymology, a tetrahydrofolate synthase (EC 6.3.2.17) is an enzyme that catalyzes the chemical reaction ATP + tetrahydropteroyl-[gamma-Glu]n + L-glutamate ⇌ {\displaystyle \rightleftharpoons } ADP + phosphate + tetrahydropteroyl-[gamma-Glu]n+1 The 3 substrates of this enzyme are ATP, [[tetrahydr…

Why does Tetrahydrofolate synthase 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 Tetrahydrofolate synthase?

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 Tetrahydrofolate synthase.