engineering

Polyamine-transporting ATPase

Polyamine-transporting ATPase 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 Polyamine-transporting ATPase rather than just read about it. In short: In enzymology, a polyamine-transporting ATPase (EC 3.6.3.31) is an enzyme that catalyzes the chemical reaction ATP + H2O + polyamineout ⇌ {\displaystyle \rightleftharpoons } ADP + phosphate + polyaminein The 3 substrates of this enzyme are ATP, H2O, and polyamine, whereas its 3 products are ADP, phosphate, and polyamine. This enzyme belongs to the family of hydrolases, specifically those acting on acid anhydrides to…

Key takeaways

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

Reference excerpt

In enzymology, a polyamine-transporting ATPase (EC 3.6.3.31) is an enzyme that catalyzes the chemical reaction

ATP + H2O + polyamineout ⇌ {\displaystyle \rightleftharpoons } ADP + phosphate + polyaminein The 3 substrates of this enzyme are ATP, H2O, and polyamine, whereas its 3 products are ADP, phosphate, and polyamine. This enzyme belongs to the family of hydrolases, specifically those acting on acid anhydrides to catalyse transmembrane movement of substances. The systematic name of this enzyme class is ATP phosphohydrolase (polyamine-importing). This enzyme participates in abc transporters - general.

References

Kashiwagi K, Miyamoto S, Nukui E, Kobayashi H, Igarashi K (1993). "Functions of potA and potD proteins in spermidine-preferential uptake system in Escherichia coli". J. Biol. Chem. 268 (26): 19358–63. doi:10.1016/S0021-9258(19)36522-6. PMID 8366082. Kuan G, Dassa E, Saurin W, Hofnung M, Saier MH Jr (1995). "Phylogenetic analyses of the ATP-binding constituents of bacterial extracytoplasmic receptor-dependent ABC-type nutrient uptake permeases". Res. Microbiol. 146 (4): 271–278. doi:10.1016/0923-2508(96)81050-3. PMID 7569321. Saier MH Jr (1998). "Molecular phylogeny as a basis for the classification of transport proteins from bacteria, archaea and eukarya". Adv. Microb. Physiol. Advances in Microbial Physiology. 40: 81–136. doi:10.1016/S0065-2911(08)60130-7. ISBN 978-0-12-027740-7. PMID 9889977.{{cite journal}}: CS1 maint: periodical has ISBN (link)

Worked examples

Example 1 — a first encounter with Polyamine-transporting ATPase

Start with the simplest possible case. Write down what Polyamine-transporting ATPase 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 Polyamine-transporting ATPase 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 Polyamine-transporting ATPase 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 Polyamine-transporting ATPase

In research: Polyamine-transporting ATPase 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 Polyamine-transporting ATPase 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: Polyamine-transporting ATPase is common in secondary-school and first-year university syllabi. It links to neighbouring topics EC 3.6.3, EC 3.6 stubs, Enzymes of unknown structure, so understanding it makes those chapters shorter.
In everyday life: Look for Polyamine-transporting ATPase 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 Polyamine-transporting ATPase in 20 minutes

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

Frequently asked questions

What is Polyamine-transporting ATPase in simple terms?

In enzymology, a polyamine-transporting ATPase (EC 3.6.3.31) is an enzyme that catalyzes the chemical reaction ATP + H2O + polyamineout ⇌ {\displaystyle \rightleftharpoons } ADP + phosphate + polyaminein The 3 substrates of this enzyme are ATP, H2O, and polyamine, whereas its 3 products are ADP, ph…

Why does Polyamine-transporting ATPase 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 Polyamine-transporting ATPase?

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 Polyamine-transporting ATPase.