engineering

Polyvinyl-alcohol dehydrogenase (acceptor)

Polyvinyl-alcohol dehydrogenase (acceptor) 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 Polyvinyl-alcohol dehydrogenase (acceptor) rather than just read about it. In short: In enzymology, a polyvinyl-alcohol dehydrogenase (acceptor) (EC 1.1.99.23) is an enzyme that catalyzes the chemical reaction polyvinyl alcohol + acceptor ⇌ {\displaystyle \rightleftharpoons } oxidized polyvinyl alcohol + reduced acceptor Thus, the two substrates of this enzyme are polyvinyl alcohol and acceptor, whereas its two products are oxidized polyvinyl alcohol and reduced acceptor. This enzyme belongs to the…

Key takeaways

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

Reference excerpt

In enzymology, a polyvinyl-alcohol dehydrogenase (acceptor) (EC 1.1.99.23) is an enzyme that catalyzes the chemical reaction

polyvinyl alcohol + acceptor ⇌ {\displaystyle \rightleftharpoons } oxidized polyvinyl alcohol + reduced acceptor Thus, the two substrates of this enzyme are polyvinyl alcohol and acceptor, whereas its two products are oxidized polyvinyl alcohol and reduced acceptor. This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-OH group of donor with other acceptors. The systematic name of this enzyme class is polyvinyl-alcohol:acceptor oxidoreductase. Other names in common use include PVA dehydrogenase, and polyvinyl-alcohol:(acceptor) oxidoreductase. It employs one cofactor, PQQ.

References

Shimao M, Ninomiya K, Kuno O, Kato N, Sakazawa C (1986). "Existence of a novel enzyme, pyrroloquinoline quinone-dependent polyvinyl alcohol dehydrogenase, in a bacterial symbiont, Pseudomonas sp. strain VM15C". Appl. Environ. Microbiol. 51 (2): 268–75. Bibcode:1986ApEnM..51..268S. doi:10.1128/aem.51.2.268-275.1986. PMC 238858. PMID 3513704. Shimao M, Onishi S, Kato N, Sakazawa C (1989). "Pyrroloquinoline Quinone-Dependent Cytochrome Reduction in Polyvinyl Alcohol-Degrading Pseudomonas sp. Strain VM15C". Appl. Environ. Microbiol. 55 (2): 275–278. Bibcode:1989ApEnM..55..275S. doi:10.1128/aem.55.2.275-278.1989. PMC 184100. PMID 16347841.

Worked examples

Example 1 — a first encounter with Polyvinyl-alcohol dehydrogenase (acceptor)

Start with the simplest possible case. Write down what Polyvinyl-alcohol dehydrogenase (acceptor) 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 Polyvinyl-alcohol dehydrogenase (acceptor) 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 Polyvinyl-alcohol dehydrogenase (acceptor) 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 Polyvinyl-alcohol dehydrogenase (acceptor)

In research: Polyvinyl-alcohol dehydrogenase (acceptor) 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 Polyvinyl-alcohol dehydrogenase (acceptor) 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: Polyvinyl-alcohol dehydrogenase (acceptor) is common in secondary-school and first-year university syllabi. It links to neighbouring topics EC 1.1.99, EC 1.1 stubs, Enzymes of unknown structure, so understanding it makes those chapters shorter.
In everyday life: Look for Polyvinyl-alcohol dehydrogenase (acceptor) 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 Polyvinyl-alcohol dehydrogenase (acceptor) in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Polyvinyl-alcohol dehydrogenase (acceptor) 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 Polyvinyl-alcohol dehydrogenase (acceptor) out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Polyvinyl-alcohol dehydrogenase (acceptor) in simple terms?

In enzymology, a polyvinyl-alcohol dehydrogenase (acceptor) (EC 1.1.99.23) is an enzyme that catalyzes the chemical reaction polyvinyl alcohol + acceptor ⇌ {\displaystyle \rightleftharpoons } oxidized polyvinyl alcohol + reduced acceptor Thus, the two substrates of this enzyme are polyvinyl alcohol…

Why does Polyvinyl-alcohol dehydrogenase (acceptor) 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 Polyvinyl-alcohol dehydrogenase (acceptor)?

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 Polyvinyl-alcohol dehydrogenase (acceptor).