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SULT1A3

SULT1A3 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 SULT1A3 rather than just read about it. In short: Sulfotransferase 1A3/1A4 is an enzyme that in humans is encoded by the SULT1A3 gene. Sulfotransferase enzymes catalyze the sulfate conjugation of many hormones, neurotransmitters, drugs, and xenobiotic compounds.

SULT1A3 — main illustration
SULT1A3 — illustration

Key takeaways

  • SULT1A3 belongs to biology; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect SULT1A3 to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of SULT1A3 from memory before moving on to harder problems.

Reference excerpt

Sulfotransferase 1A3/1A4 is an enzyme that in humans is encoded by the SULT1A3 gene. Sulfotransferase enzymes catalyze the sulfate conjugation of many hormones, neurotransmitters, drugs, and xenobiotic compounds. These cytosolic enzymes are different in their tissue distributions and substrate specificities. The gene structure (number and length of exons) is similar among family members. This gene encodes a phenol sulfotransferase with thermolabile enzyme activity. Four sulfotransferase genes are located on the p arm of chromosome 16; this gene and SULT1A4 arose from a segmental duplication. This gene is the most centromeric of the four sulfotransferase genes. Exons of this gene overlap with exons of a gene that encodes a protein containing GIY-YIG domains (GIYD1). Three alternatively spliced variants that encode the same protein have been described.

References

Further reading

External links Overview of all the structural information available in the PDB for UniProt: P0DMM9 (Sulfotransferase 1A3) at the PDBe-KB.

Illustrations

SULT1A3 illustration
SULT1A3 illustration
SULT1A3 illustration
SULT1A3 illustration
SULT1A3 illustration

Worked examples

Example 1 — a first encounter with SULT1A3

Start with the simplest possible case. Write down what SULT1A3 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 SULT1A3 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 SULT1A3 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 SULT1A3

In research
SULT1A3 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 SULT1A3 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
SULT1A3 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Genes on human chromosome 16, Protein stubs, so understanding it makes those chapters shorter.
In everyday life
Look for SULT1A3 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 SULT1A3 in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what SULT1A3 means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain SULT1A3 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is SULT1A3 in simple terms?

Sulfotransferase 1A3/1A4 is an enzyme that in humans is encoded by the SULT1A3 gene. Sulfotransferase enzymes catalyze the sulfate conjugation of many hormones, neurotransmitters, drugs, and xenobiotic compounds.

Why does SULT1A3 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 SULT1A3?

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 SULT1A3.

Tags

  • Genes on human chromosome 16
  • Protein stubs

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