chemistry

Haloacid dehydrogenase superfamily

Haloacid dehydrogenase superfamily 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 Haloacid dehydrogenase superfamily rather than just read about it. In short: The haloacid dehydrogenase superfamily (HAD superfamily) is a superfamily of enzymes that include phosphatases, phosphonatases, P-type ATPases, beta-phosphoglucomutases, phosphomannomutases, and dehalogenases, and are involved in a variety of cellular processes ranging from amino acid biosynthesis to detoxification. Examples A HAD domain is found in several distinct proteins including: Phospholipid-translocating ATP…

Key takeaways

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

Reference excerpt

The haloacid dehydrogenase superfamily (HAD superfamily) is a superfamily of enzymes that include phosphatases, phosphonatases, P-type ATPases, beta-phosphoglucomutases, phosphomannomutases, and dehalogenases, and are involved in a variety of cellular processes ranging from amino acid biosynthesis to detoxification.

Examples A HAD domain is found in several distinct proteins including:

Phospholipid-translocating ATPase EC 3.6.3.1, a putative lipid-flipping enzyme involved in cold tolerance in Arabidopsis 3-deoxy-D-manno-octulosonate (KDO) 8-phosphate phosphatase (EC 3.1.3.45), which catalyses the final step in the biosynthesis of KDO - a component of lipopolysaccharide in Gram-negative bacteria Mannosyl-3-phosphoglycerate phosphatase (EC 3.1.3.70), which hydrolyses mannosyl-3-phosphoglycerate to form the osmolyte mannosylglycerate Phosphoglycolate phosphatase (EC 3.1.3.18), which catalyses the dephosphorylation of 2-phosphoglycolate 5´-Nucleotidase (EC 3.1.3.5) which either catalyzes the hydrolysis of IMP. or IMP and GMP Hypothetical proteins Human genes encoding proteins that contain this domain include:

ATP8B3, ATP8B4, ATP10A, ATP10B, ATP10D

References

Illustrations

Worked examples

Example 1 — a first encounter with Haloacid dehydrogenase superfamily

Start with the simplest possible case. Write down what Haloacid dehydrogenase superfamily 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 Haloacid dehydrogenase superfamily 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 Haloacid dehydrogenase superfamily 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 Haloacid dehydrogenase superfamily

In research: Haloacid dehydrogenase superfamily 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 Haloacid dehydrogenase superfamily 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: Haloacid dehydrogenase superfamily is common in secondary-school and first-year university syllabi. It links to neighbouring topics Protein domains, Protein superfamilies, so understanding it makes those chapters shorter.
In everyday life: Look for Haloacid dehydrogenase superfamily 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 Haloacid dehydrogenase superfamily in 20 minutes

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

Frequently asked questions

What is Haloacid dehydrogenase superfamily in simple terms?

Why does Haloacid dehydrogenase superfamily 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 Haloacid dehydrogenase superfamily?

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 Haloacid dehydrogenase superfamily.