biology

PPFIBP1

PPFIBP1 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 PPFIBP1 rather than just read about it. In short: Liprin-beta-1 is a protein that in humans is encoded by the PPFIBP1 gene. The protein encoded by this gene is a member of the LAR protein-tyrosine phosphatase-interacting protein (liprin) family.

Key takeaways

PPFIBP1 belongs to biology; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect PPFIBP1 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of PPFIBP1 from memory before moving on to harder problems.

Reference excerpt

Liprin-beta-1 is a protein that in humans is encoded by the PPFIBP1 gene. The protein encoded by this gene is a member of the LAR protein-tyrosine phosphatase-interacting protein (liprin) family. Liprins interact with members of LAR family of transmembrane protein tyrosine phosphatases, which are known to be important for axon guidance and mammary gland development. It has been proposed that liprins are multivalent proteins that form complex structures and act as scaffolds for the recruitment and anchoring of LAR family of tyrosine phosphatases. This protein was found to interact with S100A4, a calcium-binding protein related to tumor invasiveness and metastasis. In vitro experiment demonstrated that the interaction inhibited the phosphorylation of this protein by protein kinase C and protein kinase CK2. Alternatively spliced transcript variants encoding distinct isoforms have been reported.

Interactions PPFIBP1 has been shown to interact with liprin-alpha-1.

References

Illustrations

Worked examples

Example 1 — a first encounter with PPFIBP1

Start with the simplest possible case. Write down what PPFIBP1 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 PPFIBP1 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 PPFIBP1 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 PPFIBP1

In research: PPFIBP1 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 PPFIBP1 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: PPFIBP1 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Genes on human chromosome 12, Human chromosome 12 gene stubs, so understanding it makes those chapters shorter.
In everyday life: Look for PPFIBP1 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 PPFIBP1 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what PPFIBP1 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 PPFIBP1 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is PPFIBP1 in simple terms?

Liprin-beta-1 is a protein that in humans is encoded by the PPFIBP1 gene. The protein encoded by this gene is a member of the LAR protein-tyrosine phosphatase-interacting protein (liprin) family.

Why does PPFIBP1 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 PPFIBP1?

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 PPFIBP1.