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biology

NFKB2

NFKB2 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 NFKB2 rather than just read about it. In short: Nuclear factor NF-kappa-B p100 subunit is a protein that in humans is encoded by the NFKB2 gene. Function NF-κB has been detected in numerous cell types that express cytokines, chemokines, growth factors, cell adhesion molecules, and some acute phase proteins in health and in various disease states.

NFKB2 — main illustration
NFKB2 — illustration

Key takeaways

  • NFKB2 belongs to biology; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect NFKB2 to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of NFKB2 from memory before moving on to harder problems.

Reference excerpt

Nuclear factor NF-kappa-B p100 subunit is a protein that in humans is encoded by the NFKB2 gene.

Function NF-κB has been detected in numerous cell types that express cytokines, chemokines, growth factors, cell adhesion molecules, and some acute phase proteins in health and in various disease states. NF-κB is activated by a wide variety of stimuli such as cytokines, oxidant-free radicals, inhaled particles, ultraviolet irradiation, and bacterial or viral products. Inappropriate activation of NF-kappa-B has been linked to inflammatory events associated with autoimmune arthritis, asthma, septic shock, lung fibrosis, glomerulonephritis, atherosclerosis, and AIDS. In contrast, complete and persistent inhibition of NF-kappa-B has been linked directly to apoptosis, inappropriate immune cell development, and delayed cell growth. For reviews, see Chen et al. (1999) and Baldwin (1996).

Clinical significance Though the majority of cases of common variable immunodeficiency (CVID) are not linked to single-genes defects, pathogenic variants in the NFKB2 gene have been identified as one of the possible monogenic causes of the disease. The frequency of NFKB2 mutation in CVID population is yet to be established. The protein NFKB2 can become mutated and lead to hereditary endocrine and immuneodeficiences. The mutation occurs at the C-terminus of NFKB2 and it causes common variable immunodeficienciency which in turn causes endocrine deficiency and immunodeficiencies. A NFKB2 mutation can cause things like adrenocorticotropic hormone deficiency and DAVID syndrome which is a pituitary hormone deficiency and CVID. The mutations that occur within the C-terminus affect the serine 866 and 870. These serines are considered phosphorylation sites for NFKB2. These mutations at the serine's in the C-terminus lead to CVID in combination with other endocrine deficiencies. These endocrine deficiencies along with the mutation of NFKB2, lead scientists to believe that mutation of NFKB2 is a rare hereditary disease called DAVID's disease.

Interactions NFKB2 has been shown to interact with:

See also NF-κB DAVID syndrome

References

Further reading

External links NFKB2+protein,+human at the U.S. National Library of Medicine Medical Subject Headings (MeSH) Overview of all the structural information available in the PDB for UniProt: Q00653 (Human Nuclear factor NF-kappa-B p100 subunit) at the PDBe-KB. Overview of all the structural information available in the PDB for UniProt: Q9WTK5 (Mouse Nuclear factor NF-kappa-B p100 subunit) at the PDBe-KB.

Illustrations

NFKB2 illustration
NFKB2 illustration
NFKB2 illustration
NFKB2 illustration
NFKB2 illustration

Worked examples

Example 1 — a first encounter with NFKB2

Start with the simplest possible case. Write down what NFKB2 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 NFKB2 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 NFKB2 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 NFKB2

In research
NFKB2 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 NFKB2 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
NFKB2 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Genes on human chromosome 10, Transcription factors, so understanding it makes those chapters shorter.
In everyday life
Look for NFKB2 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 NFKB2 in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what NFKB2 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 NFKB2 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is NFKB2 in simple terms?

Nuclear factor NF-kappa-B p100 subunit is a protein that in humans is encoded by the NFKB2 gene. Function NF-κB has been detected in numerous cell types that express cytokines, chemokines, growth factors, cell adhesion molecules, and some acute phase proteins in health and in various disease states.

Why does NFKB2 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 NFKB2?

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 NFKB2.

Tags

  • Genes on human chromosome 10
  • Transcription factors

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