biology

SLC20A2

SLC20A2 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 SLC20A2 rather than just read about it. In short: Sodium-dependent phosphate transporter 2 is a protein that in humans is encoded by the SLC20A2 gene. Genomics This gene is found on the short arm of chromosome 8 (8p12-p11) on the minus (Crick) strand.

Key takeaways

SLC20A2 belongs to biology; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect SLC20A2 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of SLC20A2 from memory before moving on to harder problems.

Reference excerpt

Sodium-dependent phosphate transporter 2 is a protein that in humans is encoded by the SLC20A2 gene.

Genomics This gene is found on the short arm of chromosome 8 (8p12-p11) on the minus (Crick) strand. It is 123,077 bases in length. The encoded protein has 652 amino acids and the predicted molecular weight of the protein is 70.392 kilodaltons.

Function The protein acts as a homodimer and is involved in phosphate transport by absorbing phosphate from interstitial fluid for normal cellular functions such as cellular metabolism, signal transduction, and nucleic acid and lipid synthesis.

Clinical significance Mutations in the SLC20A2 gene are associated with idiopathic basal ganglia calcification (Fahr's syndrome). This association suggests that familial idiopathic basal ganglia calcification is caused by changes in phosphate homeostasis, since this gene encodes for PIT-2, an inorganic phosphate transporter.

Illustrations

Worked examples

Example 1 — a first encounter with SLC20A2

Start with the simplest possible case. Write down what SLC20A2 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 SLC20A2 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 SLC20A2 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 SLC20A2

In research: SLC20A2 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 SLC20A2 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: SLC20A2 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Genes on human chromosome 8, Membrane protein stubs, Solute carrier family, so understanding it makes those chapters shorter.
In everyday life: Look for SLC20A2 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 SLC20A2 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what SLC20A2 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 SLC20A2 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is SLC20A2 in simple terms?

Sodium-dependent phosphate transporter 2 is a protein that in humans is encoded by the SLC20A2 gene. Genomics This gene is found on the short arm of chromosome 8 (8p12-p11) on the minus (Crick) strand.

Why does SLC20A2 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 SLC20A2?

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 SLC20A2.