biology

HLTF

HLTF 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 HLTF rather than just read about it. In short: Helicase-like transcription factor is an enzyme that in humans is encoded by the HLTF gene. Function This gene encodes a member of the SWI/SNF family.

Key takeaways

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

Reference excerpt

Helicase-like transcription factor is an enzyme that in humans is encoded by the HLTF gene.

Function This gene encodes a member of the SWI/SNF family. Members of this family have helicase and ATPase activities and are thought to regulate transcription of certain genes by altering the chromatin structure around those genes. The encoded protein contains a RING finger DNA binding motif. Two transcript variants encoding the same protein have been found for this gene. However, use of an alternative translation start site produces an isoform that is truncated at the N-terminus compared to the full-length protein. HLTF is a double-stranded DNA translocase, one of two human homologs of Saccharomyces cerevisiae RAD5 besides SHPRH (SNF2 histone linker PHD RING helicase), that is able to carry out fork regression, similarly to Rad5.

Interactions HLTF has been shown to interact with UBE2N, RAD18 and UBE2V2(see also STRING functional and physical associations network : under the option 'search by name' enter 'protein name' of interest, HLTF, klick on 'GO! ', choose 'organism ', klick on 'continue ->' ).

References

Illustrations

Worked examples

Example 1 — a first encounter with HLTF

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

In research: HLTF 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 HLTF 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: HLTF is common in secondary-school and first-year university syllabi. It links to neighbouring topics Genes on human chromosome 3, Helicases, Human chromosome 3 gene stubs, so understanding it makes those chapters shorter.
In everyday life: Look for HLTF 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 HLTF in 20 minutes

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

Frequently asked questions

What is HLTF in simple terms?

Helicase-like transcription factor is an enzyme that in humans is encoded by the HLTF gene. Function This gene encodes a member of the SWI/SNF family.

Why does HLTF 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 HLTF?

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 HLTF.