biology

Glutamate synthase (NADH)

Glutamate synthase (NADH) 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 Glutamate synthase (NADH) rather than just read about it. In short: In enzymology, glutamate synthase (NADH) (EC 1.4.1.14) is an enzyme that catalyzes the chemical reaction Glutamate synthase facilitates the ammonium assimilation pathway, which follows the enzymes, nitrite reductase and glutamine synthase. An ammonium produced by the nitrite reductase reaction will be incorporated into carbon skeleton backbone by glutamine synthase.

Key takeaways

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

Reference excerpt

In enzymology, glutamate synthase (NADH) (EC 1.4.1.14) is an enzyme that catalyzes the chemical reaction

Glutamate synthase facilitates the ammonium assimilation pathway, which follows the enzymes, nitrite reductase and glutamine synthase. An ammonium produced by the nitrite reductase reaction will be incorporated into carbon skeleton backbone by glutamine synthase. Glutamine will be produced because of the introduction of ammonium in the carbon backbone, which can be converted into glutamate by glutamate synthase of another pathway. These processes are common in plant roots because if the nitrogen deficient conditions exist (with access to ammonium and nitrate ions), there will be a first priority of ammonium uptake. The reaction only proceeds in the direction of glutamic acid production: it converts one unit of glutamine and one 2-oxoglutarate into two units of product, using reduced nicotinamide adenine dinucleotide (NADH) as cofactor. This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-NH2 group of donors with NAD+ or NADP+ as acceptor. This enzyme participates in glutamate metabolism and nitrogen assimilation. It uses the cofactor, flavin mononucleotide.

Nomenclature The systematic name of this enzyme class is L-glutamate:NAD+ oxidoreductase (transaminating). Other names in common use include:

glutamate (reduced nicotinamide adenine dinucleotide) synthase, glutamate synthase (NADH), L-glutamate synthetase(NADH), NADH-dependent glutamate synthase, NADH-glutamate synthase, and NADH-Glutamine oxoglutarate aminotransferase (NADH-GOGAT).

See also Glutamate synthase (ferredoxin) Glutamate synthase (NADPH)

References

Illustrations

Worked examples

Example 1 — a first encounter with Glutamate synthase (NADH)

Start with the simplest possible case. Write down what Glutamate synthase (NADH) 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 Glutamate synthase (NADH) 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 Glutamate synthase (NADH) 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 Glutamate synthase (NADH)

In research: Glutamate synthase (NADH) 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 Glutamate synthase (NADH) 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: Glutamate synthase (NADH) is common in secondary-school and first-year university syllabi. It links to neighbouring topics EC 1.4.1, Enzymes of unknown structure, Flavoproteins, so understanding it makes those chapters shorter.
In everyday life: Look for Glutamate synthase (NADH) 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 Glutamate synthase (NADH) in 20 minutes

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

Frequently asked questions

What is Glutamate synthase (NADH) in simple terms?

In enzymology, glutamate synthase (NADH) (EC 1.4.1.14) is an enzyme that catalyzes the chemical reaction Glutamate synthase facilitates the ammonium assimilation pathway, which follows the enzymes, nitrite reductase and glutamine synthase. An ammonium produced by the nitrite reductase reaction will…

Why does Glutamate synthase (NADH) 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 Glutamate synthase (NADH)?

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 Glutamate synthase (NADH).