biology

PIP4K2A

PIP4K2A 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 PIP4K2A rather than just read about it. In short: Phosphatidylinositol-5-phosphate 4-kinase type-2 alpha is an enzyme that in humans is encoded by the PIP4K2A gene. Function Phosphatidylinositol-4,5-bisphosphate, the precursor to second messengers of the phosphoinositide signal transduction pathways, is thought to be involved in the regulation of secretion, cell proliferation, differentiation, and motility.

Key takeaways

PIP4K2A belongs to biology; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect PIP4K2A to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of PIP4K2A from memory before moving on to harder problems.

Reference excerpt

Phosphatidylinositol-5-phosphate 4-kinase type-2 alpha is an enzyme that in humans is encoded by the PIP4K2A gene.

Function Phosphatidylinositol-4,5-bisphosphate, the precursor to second messengers of the phosphoinositide signal transduction pathways, is thought to be involved in the regulation of secretion, cell proliferation, differentiation, and motility. The protein encoded by this gene is one of a family of enzymes capable of catalyzing the phosphorylation of phosphatidylinositol-4-phosphate on the fifth hydroxyl of the myo-inositol ring to form phosphatidylinositol-4,5-bisphosphate. The amino acid sequence of this enzyme does not show homology to other kinases, but the recombinant protein does exhibit kinase activity. This gene is a member of the phosphatidylinositol-4-phosphate 5-kinase family.

Clinical significance Through genome wide association studies (GWAS), some of the single nucleotide polymorphisms (SNPs) located in this gene have been noticed to be significantly associated with susceptibility of childhood acute lymphoblastic leukaemia in ethnically diverse populations.

PIP4K2A Inhibitors THZ-P1-2 (covalent inhibitor) as well as BAY-091 and BAY-297 (reversible inhibitors) have been reported as potent and selective PIP4K2A inhibitors. BAY-091 fulfills the quality criteria for a 'Donated Chemical Probe' as defined by the Structural Genomics Consortium.

References

Illustrations

Worked examples

Example 1 — a first encounter with PIP4K2A

Start with the simplest possible case. Write down what PIP4K2A 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 PIP4K2A 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 PIP4K2A 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 PIP4K2A

In research: PIP4K2A 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 PIP4K2A 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: PIP4K2A is common in secondary-school and first-year university syllabi. It links to neighbouring topics Genes on human chromosome 10, Human chromosome 10 gene stubs, so understanding it makes those chapters shorter.
In everyday life: Look for PIP4K2A 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 PIP4K2A in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what PIP4K2A 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 PIP4K2A out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is PIP4K2A in simple terms?

Phosphatidylinositol-5-phosphate 4-kinase type-2 alpha is an enzyme that in humans is encoded by the PIP4K2A gene. Function Phosphatidylinositol-4,5-bisphosphate, the precursor to second messengers of the phosphoinositide signal transduction pathways, is thought to be involved in the regulation of…

Why does PIP4K2A 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 PIP4K2A?

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 PIP4K2A.