biology

MEF2C

MEF2C 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 MEF2C rather than just read about it. In short: Myocyte-specific enhancer factor 2C also known as MADS box transcription enhancer factor 2, polypeptide C is a protein that in humans is encoded by the MEF2C gene. MEF2C is a transcription factor in the Mef2 family.

Key takeaways

MEF2C belongs to biology; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect MEF2C to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of MEF2C from memory before moving on to harder problems.

Reference excerpt

Myocyte-specific enhancer factor 2C also known as MADS box transcription enhancer factor 2, polypeptide C is a protein that in humans is encoded by the MEF2C gene. MEF2C is a transcription factor in the Mef2 family.

Genomics The gene is located at 5q14.3 on the minus (Crick) strand and is 200,723 bases in length. The encoded protein has 473 amino acids with a predicted molecular weight of 51.221 kilodaltons. Three isoforms have been identified. Several post translational modifications have been identified including phosphorylation on serine-59 and serine-396, sumoylation on lysine-391, acetylation on lysine-4 and proteolytic cleavage.

Interactions MEF2C has been shown to interact with:

SETD1A

Biological significance This gene is involved in cardiac morphogenesis and myogenesis and vascular development. It may also be involved in neurogenesis and in the development of cortical architecture. Mice without a functional copy of the Mef2c gene die before birth and have abnormalities in the heart and vascular system. It is one of the targets of an oncomiR, MIRN21. In humans mutations of this gene result in autosomal dominant mental retardation 20 (MRD20), characterised by severe psychomotor impairment, periodic tremor and an abnormal motor pattern with mirror movement of the upper limbs observed during infancy, hypotonia, abnormal EEG, epilepsy, absence of speech, autistic behavior, bruxism, and mild dysmorphic features, mild thinning of the corpus callosum and delay of white matter myelination in the occipital lobes MEF2C-binding site is associated with minor allele of SNP rs630923, associated with the risk of multiple sclerosis, and responsible for reduced CXCR5 gene promoter activity in B-cells during activation, that could lead to decreased autoimmune response

Illustrations

Worked examples

Example 1 — a first encounter with MEF2C

Start with the simplest possible case. Write down what MEF2C 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 MEF2C 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 MEF2C 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 MEF2C

In research: MEF2C 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 MEF2C 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: MEF2C is common in secondary-school and first-year university syllabi. It links to neighbouring topics Genes on human chromosome 5, Transcription factors, so understanding it makes those chapters shorter.
In everyday life: Look for MEF2C 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 MEF2C in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what MEF2C 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 MEF2C out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is MEF2C in simple terms?

Why does MEF2C 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 MEF2C?

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 MEF2C.