engineering

Nucleotide diphosphatase

Nucleotide diphosphatase 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 Nucleotide diphosphatase rather than just read about it. In short: In enzymology, a nucleotide diphosphatase (EC 3.6.1.9) is an enzyme that catalyzes the chemical reaction a dinucleotide + H2O ⇌ {\displaystyle \rightleftharpoons } 2 mononucleotides Thus, the two substrates of this enzyme are dinucleotide and H2O, whereas its product is mononucleotide. This enzyme belongs to the family of hydrolases, specifically those acting on acid anhydrides in phosphorus-containing anhydrides.

Key takeaways

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

Reference excerpt

In enzymology, a nucleotide diphosphatase (EC 3.6.1.9) is an enzyme that catalyzes the chemical reaction

a dinucleotide + H2O ⇌ {\displaystyle \rightleftharpoons } 2 mononucleotides Thus, the two substrates of this enzyme are dinucleotide and H2O, whereas its product is mononucleotide. This enzyme belongs to the family of hydrolases, specifically those acting on acid anhydrides in phosphorus-containing anhydrides. The systematic name of this enzyme class is dinucleotide nucleotidohydrolase. Other names in common use include nucleotide pyrophosphatase, and nucleotide-sugar pyrophosphatase. This enzyme participates in 5 metabolic pathways: purine metabolism, starch and sucrose metabolism, riboflavin metabolism, nicotinate and nicotinamide metabolism, and pantothenate and coa biosynthesis.

Structural studies As of late 2007, 5 structures have been solved for this class of enzymes, with PDB accession codes PDB: 1NQY, PDB: 1NQZ, PDB: 2GSN, PDB: 2GSO, and PDB: 2GSU.

References

Jacobson JB; Kaplan NO (1957). "A reduced pyridine nucleotide pyrophosphatase". J. Biol. Chem. 226 (1): 427–437. doi:10.1016/S0021-9258(18)64843-4. PMID 13428775. Kornberg A; Pricer WE (1950). "Nucleotide pyrophosphatase". J. Biol. Chem. 182 (2): 763–778. doi:10.1016/S0021-9258(18)56512-1. Kumar SA, Rao NA, Vaidyanathan CS (1965). "Nucleotidases in plants. I. Partial purification and properties of the enzyme hydrolyzing flavine adenine dinucleotide from mung bean seedlings (Phaseolus radiatus)". Arch. Biochem. Biophys. 111 (3): 646–52. doi:10.1016/0003-9861(65)90246-8. PMID 5862212. Swartz MN, Kaplan NO, Lamborg MF (1958). "A "heat-activated" diphosphopyridine nucleotide pyrophosphatase from Proteus vulgaris". J. Biol. Chem. 232 (2): 1051–1063. doi:10.1016/S0021-9258(19)77421-3. PMID 13549486.

Worked examples

Example 1 — a first encounter with Nucleotide diphosphatase

Start with the simplest possible case. Write down what Nucleotide diphosphatase 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 Nucleotide diphosphatase 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 Nucleotide diphosphatase 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 Nucleotide diphosphatase

In research: Nucleotide diphosphatase 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 Nucleotide diphosphatase 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: Nucleotide diphosphatase is common in secondary-school and first-year university syllabi. It links to neighbouring topics EC 3.6.1, EC 3.6 stubs, Enzymes of known structure, so understanding it makes those chapters shorter.
In everyday life: Look for Nucleotide diphosphatase 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 “Nucleotide diphosphatase” →

Affiliate

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

How to study Nucleotide diphosphatase in 20 minutes

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

Frequently asked questions

What is Nucleotide diphosphatase in simple terms?

In enzymology, a nucleotide diphosphatase (EC 3.6.1.9) is an enzyme that catalyzes the chemical reaction a dinucleotide + H2O ⇌ {\displaystyle \rightleftharpoons } 2 mononucleotides Thus, the two substrates of this enzyme are dinucleotide and H2O, whereas its product is mononucleotide. This enzyme…

Why does Nucleotide diphosphatase 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 Nucleotide diphosphatase?

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 Nucleotide diphosphatase.