chemistry

Hydrogenobyrinic acid a,c-diamide synthase (glutamine-hydrolysing)

Hydrogenobyrinic acid a,c-diamide synthase (glutamine-hydrolysing) is a chemistry 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 Hydrogenobyrinic acid a,c-diamide synthase (glutamine-hydrolysing) rather than just read about it. In short: In enzymology, a hydrogenobyrinic acid a,c-diamide synthase (glutamine-hydrolysing) (EC 6.3.5.9) is an enzyme that catalyzes the chemical reaction 2 ATP + hydrogenobyrinic acid + 2 L-glutamine + 2 H2O ⇌ {\displaystyle \rightleftharpoons } 2 ADP + 2 phosphate + hydrogenobyrinic acid a,c-diamide + 2 L-glutamate The four substrates of this enzyme are ATP, hydrogenobyrinic acid, L-glutamine, and H2O; its four products a…

Key takeaways

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

Reference excerpt

In enzymology, a hydrogenobyrinic acid a,c-diamide synthase (glutamine-hydrolysing) (EC 6.3.5.9) is an enzyme that catalyzes the chemical reaction

2 ATP + hydrogenobyrinic acid + 2 L-glutamine + 2 H2O ⇌ {\displaystyle \rightleftharpoons } 2 ADP + 2 phosphate + hydrogenobyrinic acid a,c-diamide + 2 L-glutamate The four substrates of this enzyme are ATP, hydrogenobyrinic acid, L-glutamine, and H2O; its four products are ADP, phosphate, hydrogenobyrinic acid a,c-diamide, and L-glutamate. This enzyme belongs to the family of ligases, specifically those forming carbon-nitrogen bonds carbon-nitrogen ligases with glutamine as amido-N-donor. The systematic name of this enzyme class is hydrogenobyrinic-acid:L-glutamine amido-ligase (AMP-forming). This enzyme is also called CobB and is part of the biosynthetic pathway to cobalamin (vitamin B12) in aerobic bacteria.

Worked examples

Example 1 — a first encounter with Hydrogenobyrinic acid a,c-diamide synthase (glutamine-hydrolysing)

Start with the simplest possible case. Write down what Hydrogenobyrinic acid a,c-diamide synthase (glutamine-hydrolysing) claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In chemistry, 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 Hydrogenobyrinic acid a,c-diamide synthase (glutamine-hydrolysing) 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 Hydrogenobyrinic acid a,c-diamide synthase (glutamine-hydrolysing) 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 Hydrogenobyrinic acid a,c-diamide synthase (glutamine-hydrolysing)

In research: Hydrogenobyrinic acid a,c-diamide synthase (glutamine-hydrolysing) appears in chemistry 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 Hydrogenobyrinic acid a,c-diamide synthase (glutamine-hydrolysing) 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: Hydrogenobyrinic acid a,c-diamide synthase (glutamine-hydrolysing) is common in secondary-school and first-year university syllabi. It links to neighbouring topics EC 6.3.5, Enzymes of unknown structure, Ligase stubs, so understanding it makes those chapters shorter.
In everyday life: Look for Hydrogenobyrinic acid a,c-diamide synthase (glutamine-hydrolysing) 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 Hydrogenobyrinic acid a,c-diamide synthase (glutamine-hydrolysing) in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Hydrogenobyrinic acid a,c-diamide synthase (glutamine-hydrolysing) 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.
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Frequently asked questions

What is Hydrogenobyrinic acid a,c-diamide synthase (glutamine-hydrolysing) in simple terms?

In enzymology, a hydrogenobyrinic acid a,c-diamide synthase (glutamine-hydrolysing) (EC 6.3.5.9) is an enzyme that catalyzes the chemical reaction 2 ATP + hydrogenobyrinic acid + 2 L-glutamine + 2 H2O ⇌ {\displaystyle \rightleftharpoons } 2 ADP + 2 phosphate + hydrogenobyrinic acid a,c-diamide + 2…

Why does Hydrogenobyrinic acid a,c-diamide synthase (glutamine-hydrolysing) matter?

Because it connects several chemistry 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 Hydrogenobyrinic acid a,c-diamide synthase (glutamine-hydrolysing)?

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 Hydrogenobyrinic acid a,c-diamide synthase (glutamine-hydrolysing).