chemistry

Ileal sodium/bile acid cotransporter

Ileal sodium/bile acid cotransporter 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 Ileal sodium/bile acid cotransporter rather than just read about it. In short: Ileal sodium/bile acid cotransporter, also known as apical sodium–bile acid transporter (ASBT) and ileal bile acid transporter (IBAT), is a bile acid:sodium symporter protein that in humans is encoded by the SLC10A2 gene. ASBT/IBAT is most highly expressed in the ileum, where it is found on the brush border membrane of enterocytes.

Key takeaways

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

Reference excerpt

Ileal sodium/bile acid cotransporter, also known as apical sodium–bile acid transporter (ASBT) and ileal bile acid transporter (IBAT), is a bile acid:sodium symporter protein that in humans is encoded by the SLC10A2 gene. ASBT/IBAT is most highly expressed in the ileum, where it is found on the brush border membrane of enterocytes. It is responsible for the initial uptake of bile acids, particularly conjugated bile acids, from the intestine as part of their enterohepatic circulation.

As a drug target Several medications to inhibit IBAT are under development. They include elobixibat, under development for the treatment of constipation and irritable bowel syndrome, and volixibat, under development for the treatment of nonalcoholic steatohepatitis.

Elobixibat Linerixibat Maralixibat Odevixibat Ritivixibat Volixibat

Illustrations

Worked examples

Example 1 — a first encounter with Ileal sodium/bile acid cotransporter

Start with the simplest possible case. Write down what Ileal sodium/bile acid cotransporter 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 Ileal sodium/bile acid cotransporter 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 Ileal sodium/bile acid cotransporter 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 Ileal sodium/bile acid cotransporter

In research: Ileal sodium/bile acid cotransporter 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 Ileal sodium/bile acid cotransporter 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: Ileal sodium/bile acid cotransporter is common in secondary-school and first-year university syllabi. It links to neighbouring topics Genes on human chromosome 13, Membrane protein stubs, Solute carrier family, so understanding it makes those chapters shorter.
In everyday life: Look for Ileal sodium/bile acid cotransporter 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 Ileal sodium/bile acid cotransporter in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Ileal sodium/bile acid cotransporter 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 Ileal sodium/bile acid cotransporter out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Ileal sodium/bile acid cotransporter in simple terms?

Why does Ileal sodium/bile acid cotransporter 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 Ileal sodium/bile acid cotransporter?

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 Ileal sodium/bile acid cotransporter.