engineering

Glutaconyl-CoA decarboxylase

Glutaconyl-CoA decarboxylase 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 Glutaconyl-CoA decarboxylase rather than just read about it. In short: In enzymology, a glutaconyl-CoA decarboxylase (EC 7.2.4.5) is an enzyme that catalyzes the chemical reaction (2E)-glutaconyl-CoA + H+ + Na+(in) ⇌ {\displaystyle \rightleftharpoons } (2E)-butenoyl-CoA + CO2 + Na+(out) Hence, this enzyme has one substrate, (2E)-glutaconyl-CoA, and two products, (2E)-butenoyl-CoA and CO2. During the process, a sodium ion is transported across the membrane.

Key takeaways

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

Reference excerpt

In enzymology, a glutaconyl-CoA decarboxylase (EC 7.2.4.5) is an enzyme that catalyzes the chemical reaction

(2E)-glutaconyl-CoA + H+ + Na+(in) ⇌ {\displaystyle \rightleftharpoons } (2E)-butenoyl-CoA + CO2 + Na+(out) Hence, this enzyme has one substrate, (2E)-glutaconyl-CoA, and two products, (2E)-butenoyl-CoA and CO2. During the process, a sodium ion is transported across the membrane. Previously, this enzyme was classified as EC 4.1.1.70. This enzyme belongs to the family of lyases, specifically the carboxy-lyases, which cleave carbon-carbon bonds. The systematic name of this enzyme class is 4-carboxybut-2-enoyl-CoA carboxy-lyase (but-2-enoyl-CoA-forming). Other names in common use include glutaconyl coenzyme A decarboxylase, pent-2-enoyl-CoA carboxy-lyase, and 4-carboxybut-2-enoyl-CoA carboxy-lyase. This enzyme participates in benzoate degradation via coa ligation and butanoate metabolism. As a decarboxylase, the enzyme requires biotin for its function.

Structural studies As of mid-2024, five structures have been solved for this class of enzymes, with the PDB accession codes PDB: 1PIX, PDB: 3GF3, PDB: 3GF7, PDB: 3GLM and PDB: 3GMA.

References

Buckel W, Semmler R (1983). "Purification, characterisation and reconstitution of glutaconyl-CoA decarboxylase, a biotin-dependent sodium pump from anaerobic bacteria". Eur. J. Biochem. 136 (2): 427–34. doi:10.1111/j.1432-1033.1983.tb07760.x. PMID 6628393. Buckel W (2001). "Sodium ion-translocating decarboxylases". Biochim. Biophys. Acta. 1505 (1): 15–27. doi:10.1016/s0005-2728(00)00273-5. PMID 11248185.

Worked examples

Example 1 — a first encounter with Glutaconyl-CoA decarboxylase

Start with the simplest possible case. Write down what Glutaconyl-CoA decarboxylase 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 Glutaconyl-CoA decarboxylase 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 Glutaconyl-CoA decarboxylase 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 Glutaconyl-CoA decarboxylase

In research: Glutaconyl-CoA decarboxylase 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 Glutaconyl-CoA decarboxylase 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: Glutaconyl-CoA decarboxylase is common in secondary-school and first-year university syllabi. It links to neighbouring topics EC 7.2.4, Enzyme stubs, Enzymes of known structure, so understanding it makes those chapters shorter.
In everyday life: Look for Glutaconyl-CoA decarboxylase 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 Glutaconyl-CoA decarboxylase in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Glutaconyl-CoA decarboxylase means in your own words.
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Frequently asked questions

What is Glutaconyl-CoA decarboxylase in simple terms?

In enzymology, a glutaconyl-CoA decarboxylase (EC 7.2.4.5) is an enzyme that catalyzes the chemical reaction (2E)-glutaconyl-CoA + H+ + Na+(in) ⇌ {\displaystyle \rightleftharpoons } (2E)-butenoyl-CoA + CO2 + Na+(out) Hence, this enzyme has one substrate, (2E)-glutaconyl-CoA, and two products, (2E)…

Why does Glutaconyl-CoA decarboxylase 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 Glutaconyl-CoA decarboxylase?

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 Glutaconyl-CoA decarboxylase.