biology

Holin LLH family

Holin LLH family 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 Holin LLH family rather than just read about it. In short: The holin LLH family (TC# 1.E.26) is a group of transporters belonging to the Holin superfamily VI. The Holin LLH family is found in Bacillota and phage of Bacillota as well as other bacteria.

Key takeaways

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

Reference excerpt

The holin LLH family (TC# 1.E.26) is a group of transporters belonging to the Holin superfamily VI. The Holin LLH family is found in Bacillota and phage of Bacillota as well as other bacteria. Members are fairly large, between 100 and 160 amino acyl residues in length, and have an N-terminal transmembrane segment (TMS). Some proteins, such as putative holin of Fusobacterium varium (TC# 1.E.26.7.2), may exhibit 2 TMSs. A representative list of proteins belonging to the Holin LLH family can be found in the Transporter Classification Database.

See also Holin/Holin Superfamilies Lysin Transporter Classification Database

Further reading Gindreau, E; Lonvaud-Funel, A (1999). "Molecular analysis of the region encoding the lytic system from Oenococcus oeni temperate bacteriophage phi 10MC". FEMS Microbiol Lett. 171 (2): 231–8. doi:10.1111/j.1574-6968.1999.tb13437.x. PMID 10077848. van der Ploeg, JR (2007). "Genome sequence of Streptococcus mutans bacteriophage M102". FEMS Microbiol Lett. 275 (1): 130–8. doi:10.1111/j.1574-6968.2007.00873.x. PMID 17711456. Wang, S; Kong, J; Zhang, X (2008). "Identification and characterization of the two-component cell lysis cassette encoded by temperate bacteriophage phiPYB5 of Lactobacillus fermentum". J Appl Microbiol. 105 (6): 1939–44. doi:10.1111/j.1365-2672.2008.03953.x. PMID 19120640. S2CID 25967192.

References

As of this edit, this article uses content from "1.E.26 The Holin LLH (Holin LLH) Family", which is licensed in a way that permits reuse under the Creative Commons Attribution-ShareAlike 3.0 Unported License, but not under the GFDL. All relevant terms must be followed.

Worked examples

Example 1 — a first encounter with Holin LLH family

Start with the simplest possible case. Write down what Holin LLH family 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 Holin LLH family 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 Holin LLH family 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 Holin LLH family

In research: Holin LLH family 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 Holin LLH family 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: Holin LLH family is common in secondary-school and first-year university syllabi. It links to neighbouring topics Holins, Protein families, so understanding it makes those chapters shorter.
In everyday life: Look for Holin LLH family 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 “Holin LLH family” →

Affiliate

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

How to study Holin LLH family in 20 minutes

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

Frequently asked questions

What is Holin LLH family in simple terms?

The holin LLH family (TC# 1.E.26) is a group of transporters belonging to the Holin superfamily VI. The Holin LLH family is found in Bacillota and phage of Bacillota as well as other bacteria.

Why does Holin LLH family 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 Holin LLH family?

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 Holin LLH family.