engineering

Homoglutathione synthase

Homoglutathione 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 Homoglutathione synthase rather than just read about it. In short: In enzymology, a homoglutathione synthase (EC 6.3.2.23) is an enzyme that catalyzes the chemical reaction ATP + γ-L-glutamyl-L-cysteine + β-alanine ⇌ {\displaystyle \rightleftharpoons } ADP + phosphate + γ-Lglutamyl-L-cysteinyl-β-alanine The 3 substrates of this enzyme are ATP, gamma-L-glutamyl-L-cysteine, and beta-alanine, whereas its 3 products are ADP, phosphate, and gamma-L-glutamyl-L-cysteinyl-beta-alanine. Thi…

Key takeaways

Homoglutathione 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 Homoglutathione synthase to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Homoglutathione synthase from memory before moving on to harder problems.

Reference excerpt

In enzymology, a homoglutathione synthase (EC 6.3.2.23) is an enzyme that catalyzes the chemical reaction

ATP + γ-L-glutamyl-L-cysteine + β-alanine ⇌ {\displaystyle \rightleftharpoons } ADP + phosphate + γ-Lglutamyl-L-cysteinyl-β-alanine The 3 substrates of this enzyme are ATP, gamma-L-glutamyl-L-cysteine, and beta-alanine, whereas its 3 products are ADP, phosphate, and gamma-L-glutamyl-L-cysteinyl-beta-alanine. 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 gamma-L-glutamyl-L-cysteine:beta-alanine ligase (ADP-forming). Other names in common use include homoglutathione synthetase, and beta-alanine specific hGSH synthetase.

References

Macnicol PK (1987). "Homoglutathione and glutathione synthetases of legume seedlings - partial-purification and substrate-specificity". Plant Sci. 53 (3): 229–235. Bibcode:1987PlnSc..53..229M. doi:10.1016/0168-9452(87)90159-2.

Worked examples

Example 1 — a first encounter with Homoglutathione synthase

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

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

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

Frequently asked questions

What is Homoglutathione synthase in simple terms?

In enzymology, a homoglutathione synthase (EC 6.3.2.23) is an enzyme that catalyzes the chemical reaction ATP + γ-L-glutamyl-L-cysteine + β-alanine ⇌ {\displaystyle \rightleftharpoons } ADP + phosphate + γ-Lglutamyl-L-cysteinyl-β-alanine The 3 substrates of this enzyme are ATP, gamma-L-glutamyl-L-c…

Why does Homoglutathione 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 Homoglutathione 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 Homoglutathione synthase.