engineering

Glutathione thiolesterase

Glutathione thiolesterase 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 Glutathione thiolesterase rather than just read about it. In short: The enzyme glutathione thiolesterase (EC 3.1.2.7) catalyzes the reaction S-acylglutathione + H2O ⇌ {\displaystyle \rightleftharpoons } glutathione + a carboxylate This enzyme belongs to the family of hydrolases, specifically those acting on thioester bonds. The systematic name is S-acylglutathione hydrolase.

Key takeaways

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

Reference excerpt

The enzyme glutathione thiolesterase (EC 3.1.2.7) catalyzes the reaction

S-acylglutathione + H2O ⇌ {\displaystyle \rightleftharpoons } glutathione + a carboxylate This enzyme belongs to the family of hydrolases, specifically those acting on thioester bonds. The systematic name is S-acylglutathione hydrolase. It is also called citryl-glutathione thioesterhydrolase. Glutathione thiolesterase has also been found to catalyze the reaction S-lactoylglutathione + H2O ⇌ {\displaystyle \rightleftharpoons } glutathione + a lactate The catalyzation of hydrolysis of S-lactoylglutathione by glutathione thiolesterase has been noted in Saccharomyces cerevisiae. Additionally, human red blood cells have been found to contain at least four separate glutathione thiol esterases. The enzymes found supported the potential substrate activity of S-lactoylglutathione and S-propionylglutathione.

References

Kielley WW, Bradley LB (1954). "Glutathione thiolesterase". J. Biol. Chem. 206 (1): 327–33. doi:10.1016/S0021-9258(18)71321-5. PMID 13130552. Murata K., & Sato N., & Rhee H., & Watanabe K., & Kimura A. (1987) "Purification and Characterization of Glutathione Thiol Esterase from Saccharomyces cerevisiae" Agricultural and Biological Chemistry, 51(7), 1901-1907. https://doi.org/10.1080/00021369.1987.10868321 Uotila, Lasse. (1979) "Glutathione thiol esterases of human red blood cells: Fractionation by gel electrophoresis and isoelectric focusing" Biochimica et Biophysica Acta (BBA) - Protein Structure, 580(2), 277-288. https://doi.org/10.1016/0005-2795(79)90140-5

Worked examples

Example 1 — a first encounter with Glutathione thiolesterase

Start with the simplest possible case. Write down what Glutathione thiolesterase 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 Glutathione thiolesterase 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 Glutathione thiolesterase 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 Glutathione thiolesterase

In research: Glutathione thiolesterase 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 Glutathione thiolesterase 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: Glutathione thiolesterase is common in secondary-school and first-year university syllabi. It links to neighbouring topics EC 3.1.2, EC 3.1 stubs, Enzymes of unknown structure, so understanding it makes those chapters shorter.
In everyday life: Look for Glutathione thiolesterase 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 Glutathione thiolesterase in 20 minutes

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

Frequently asked questions

What is Glutathione thiolesterase in simple terms?

The enzyme glutathione thiolesterase (EC 3.1.2.7) catalyzes the reaction S-acylglutathione + H2O ⇌ {\displaystyle \rightleftharpoons } glutathione + a carboxylate This enzyme belongs to the family of hydrolases, specifically those acting on thioester bonds. The systematic name is S-acylglutathione…

Why does Glutathione thiolesterase 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 Glutathione thiolesterase?

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 Glutathione thiolesterase.