biology

Hydroxylamine reductase

Hydroxylamine reductase is a biology 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 Hydroxylamine reductase rather than just read about it. In short: In enzymology, a hydroxylamine reductase (EC 1.7.99.1) is an enzyme that catalyzes the chemical reaction NH3 + H2O + acceptor ⇌ {\displaystyle \rightleftharpoons } hydroxylamine + reduced acceptor The 3 substrates of this enzyme are NH3, H2O, and acceptor, whereas its two products are hydroxylamine and reduced acceptor. This enzyme belongs to the family of oxidoreductases, specifically those acting on other nitrogen…

Key takeaways

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

Reference excerpt

In enzymology, a hydroxylamine reductase (EC 1.7.99.1) is an enzyme that catalyzes the chemical reaction

NH3 + H2O + acceptor ⇌ {\displaystyle \rightleftharpoons } hydroxylamine + reduced acceptor The 3 substrates of this enzyme are NH3, H2O, and acceptor, whereas its two products are hydroxylamine and reduced acceptor. This enzyme belongs to the family of oxidoreductases, specifically those acting on other nitrogenous compounds as donors with other acceptors. The systematic name of this enzyme class is ammonia:acceptor oxidoreductase. Other names in common use include hydroxylamine (acceptor) reductase, and ammonia:(acceptor) oxidoreductase. This enzyme participates in nitrogen metabolism. It has 2 cofactors: FAD, and Flavoprotein.

References

Taniguchi H, Mitsui H, Nakamura K, Egami F. "Ann. Acad. Sci. Fenn. Ser. A II 60 (1955) 200". {{cite journal}}: Cite journal requires |journal= (help) Walker GC; Nicholas DJD (1961). "Hydroxylamine reductase from Pseudomonas aeruginosa". Biochim. Biophys. Acta. 49 (2): 361–368. doi:10.1016/0006-3002(61)90135-4. PMID 13782715. NJ, Ferguson SJ; Allen, JW; Higham, CW; Koppenhofer, A; Zajicek, RS; Watmough, NJ; Ferguson, SJ (2002). "Cytochrome cd1, reductive activation and kinetic analysis of a multifunctional respiratory enzyme". J. Biol. Chem. 277 (5): 3093–100. doi:10.1074/jbc.M108944200. PMID 11709555.

Worked examples

Example 1 — a first encounter with Hydroxylamine reductase

Start with the simplest possible case. Write down what Hydroxylamine reductase claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In biology, 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 Hydroxylamine reductase 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 Hydroxylamine reductase 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 Hydroxylamine reductase

In research: Hydroxylamine reductase appears in biology 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 Hydroxylamine reductase 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: Hydroxylamine reductase is common in secondary-school and first-year university syllabi. It links to neighbouring topics EC 1.7.99, Enzymes of unknown structure, Flavoproteins, so understanding it makes those chapters shorter.
In everyday life: Look for Hydroxylamine reductase 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.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “Hydroxylamine reductase” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Hydroxylamine reductase in 20 minutes

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

Frequently asked questions

What is Hydroxylamine reductase in simple terms?

In enzymology, a hydroxylamine reductase (EC 1.7.99.1) is an enzyme that catalyzes the chemical reaction NH3 + H2O + acceptor ⇌ {\displaystyle \rightleftharpoons } hydroxylamine + reduced acceptor The 3 substrates of this enzyme are NH3, H2O, and acceptor, whereas its two products are hydroxylamine…

Why does Hydroxylamine reductase matter?

Because it connects several biology 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 Hydroxylamine reductase?

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 Hydroxylamine reductase.