engineering

Imidazolonepropionase

Imidazolonepropionase 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 Imidazolonepropionase rather than just read about it. In short: In enzymology, an imidazolonepropionase (EC 3.5.2.7) is an enzyme that catalyzes the chemical reaction (S)-3-(5-oxo-4,5-dihydro-3H-imidazol-4-yl)propanoate + H2O ⇌ {\displaystyle \rightleftharpoons } N-formimidoyl-L-glutamate + H+ Thus, the two substrates of this enzyme are (S)-3-(5-oxo-4,5-dihydro-3H-imidazol-4-yl)propanoate and H2O, whereas its two products are N-formimidoyl-L-glutamate and H+. This enzyme belongs…

Key takeaways

Imidazolonepropionase belongs to engineering; place it in that map before memorising details.
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Reference excerpt

In enzymology, an imidazolonepropionase (EC 3.5.2.7) is an enzyme that catalyzes the chemical reaction

(S)-3-(5-oxo-4,5-dihydro-3H-imidazol-4-yl)propanoate + H2O ⇌ {\displaystyle \rightleftharpoons } N-formimidoyl-L-glutamate + H+ Thus, the two substrates of this enzyme are (S)-3-(5-oxo-4,5-dihydro-3H-imidazol-4-yl)propanoate and H2O, whereas its two products are N-formimidoyl-L-glutamate and H+. This enzyme belongs to the family of hydrolases, those acting on carbon-nitrogen bonds other than peptide bonds, specifically in cyclic amides. The systematic name of this enzyme class is 3-(5-oxo-4,5-dihydro-3H-imidazol-4-yl)propanoate amidohydrolase. Other names in common use include 4(5)-imidazolone-5(4)-propionic acid hydrolase, and imidazolone propionic acid hydrolase. This enzyme participates in histidine metabolism.

Structural studies As of late 2007, 6 structures have been solved for this class of enzymes, with PDB accession codes PDB: 2BB0, PDB: 2G3F, PDB: 2GOK, PDB: 2OOF, PDB: 2PUZ, and PDB: 2Q09.

References

Rao DR; Greenberg DM (1961). "Studies on the enzymic decomposition of urocanic acid. IV Purification and properties of 4(5)-imidazolone-5(4)-propionic acid hydrolase". J. Biol. Chem. 236: 1758–1763. doi:10.1016/S0021-9258(19)63297-7. PMID 13739526. Snyder SH, Silva OL, Kies MW (1961). "The mammalian metabolism of L-histidine. IV. Purification and properties of imidazolone propionic acid hydrolase". J. Biol. Chem. 236 (11): 2996–2998. doi:10.1016/S0021-9258(19)76417-5. PMID 13914653.

Illustrations

Worked examples

Example 1 — a first encounter with Imidazolonepropionase

Start with the simplest possible case. Write down what Imidazolonepropionase 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 Imidazolonepropionase 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 Imidazolonepropionase 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 Imidazolonepropionase

In research: Imidazolonepropionase 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 Imidazolonepropionase 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: Imidazolonepropionase is common in secondary-school and first-year university syllabi. It links to neighbouring topics EC 3.5.2, EC 3.5 stubs, Enzymes of known structure, so understanding it makes those chapters shorter.
In everyday life: Look for Imidazolonepropionase 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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Frequently asked questions

What is Imidazolonepropionase in simple terms?

In enzymology, an imidazolonepropionase (EC 3.5.2.7) is an enzyme that catalyzes the chemical reaction (S)-3-(5-oxo-4,5-dihydro-3H-imidazol-4-yl)propanoate + H2O ⇌ {\displaystyle \rightleftharpoons } N-formimidoyl-L-glutamate + H+ Thus, the two substrates of this enzyme are (S)-3-(5-oxo-4,5-dihydro…

Why does Imidazolonepropionase 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 Imidazolonepropionase?

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 Imidazolonepropionase.