biology

Small nucleolar RNA SNORD93

Small nucleolar RNA SNORD93 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 Small nucleolar RNA SNORD93 rather than just read about it. In short: In molecular biology, Small Nucleolar RNA SNORD93 (also known as HBII-336) is a non-coding RNA (ncRNA) molecule that functions in the biogenesis (modification) of other small nuclear RNAs (snRNAs). This type of modifying RNA is located in the nucleolus of the Eukaryotic cell, which is a major site of snRNA biogenesis.

Key takeaways

Small nucleolar RNA SNORD93 belongs to biology; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Small nucleolar RNA SNORD93 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Small nucleolar RNA SNORD93 from memory before moving on to harder problems.

Reference excerpt

In molecular biology, Small Nucleolar RNA SNORD93 (also known as HBII-336) is a non-coding RNA (ncRNA) molecule that functions in the biogenesis (modification) of other small nuclear RNAs (snRNAs). This type of modifying RNA is located in the nucleolus of the Eukaryotic cell, which is a major site of snRNA biogenesis. It is known as a small nucleolar RNA (snoRNA) and is also often referred to as a guide RNA. SNORD93 belongs to the C/D box class of snoRNAs, which contain the C (UGAUGA) and D (CUGA) box motifs. Most members of the box C/D family function in directing site-specific 2'-O-methylation of substrate RNAs. This snoRNA is the human orthologue of mouse snoRNA MBII-336. SNORD93 is predicted to guide the 2'O-ribose methylation of 18S ribosomal RNA (rRNA) residue A576. Additionally, SNORD93 can be processed into a smaller, microRNA-like fragment (termed snoRNA-derived RNA(sdRNA)) that contributes to the malignant phenotype of breast cancer. The processed piece (sdRNA-93) has been shown to target Pipox, a sarcosine metabolism-related protein whose expression significantly correlates with distinct molecular subtypes of breast cancer.

References

External links

Page for Small Nucleolar RNA SNORD93 at Rfam Entry for SNORD93 at snoRNABase

Illustrations

Worked examples

Example 1 — a first encounter with Small nucleolar RNA SNORD93

Start with the simplest possible case. Write down what Small nucleolar RNA SNORD93 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 Small nucleolar RNA SNORD93 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 Small nucleolar RNA SNORD93 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 Small nucleolar RNA SNORD93

In research: Small nucleolar RNA SNORD93 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 Small nucleolar RNA SNORD93 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: Small nucleolar RNA SNORD93 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Molecular and cellular biology stubs, Non-coding RNA, so understanding it makes those chapters shorter.
In everyday life: Look for Small nucleolar RNA SNORD93 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.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “Small nucleolar RNA SNORD93” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Small nucleolar RNA SNORD93 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Small nucleolar RNA SNORD93 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 Small nucleolar RNA SNORD93 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Small nucleolar RNA SNORD93 in simple terms?

Why does Small nucleolar RNA SNORD93 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 Small nucleolar RNA SNORD93?

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 Small nucleolar RNA SNORD93.