engineering

Propanoyl-CoA C-acyltransferase

Propanoyl-CoA C-acyltransferase is a engineering 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 Propanoyl-CoA C-acyltransferase rather than just read about it. In short: In enzymology, a propanoyl-CoA C-acyltransferase (EC 2.3.1.176) is an enzyme that catalyzes the chemical reaction 3alpha,7alpha,12alpha-trihydroxy-5beta-cholanoyl-CoA + propanoyl-CoA ⇌ {\displaystyle \rightleftharpoons } CoA + 3alpha,7alpha,12alpha-trihydroxy-24-oxo-5beta-cholestanoyl-CoA Thus, the two substrates of this enzyme are 3alpha,7alpha,12alpha-trihydroxy-5beta-cholanoyl-CoA and propanoyl-CoA, whereas its t…

Key takeaways

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

Reference excerpt

In enzymology, a propanoyl-CoA C-acyltransferase (EC 2.3.1.176) is an enzyme that catalyzes the chemical reaction

3alpha,7alpha,12alpha-trihydroxy-5beta-cholanoyl-CoA + propanoyl-CoA ⇌ {\displaystyle \rightleftharpoons } CoA + 3alpha,7alpha,12alpha-trihydroxy-24-oxo-5beta-cholestanoyl-CoA Thus, the two substrates of this enzyme are 3alpha,7alpha,12alpha-trihydroxy-5beta-cholanoyl-CoA and propanoyl-CoA, whereas its two products are CoA and 3alpha,7alpha,12alpha-trihydroxy-24-oxo-5beta-cholestanoyl-CoA. This enzyme belongs to the family of transferases, specifically those acyltransferases transferring groups other than aminoacyl groups. The systematic name of this enzyme class is 3alpha,7alpha,12alpha-trihydroxy-5beta-cholanoyl-CoA:propanoyl-CoA C-acyltransferase. Other names in common use include peroxisomal thiolase 2, sterol carrier protein-, SCP, and PTE-2 (ambiguous). This enzyme participates in ppar signaling pathway. Propanoyl-CoA C-acyltransferase belongs to the thiolase family of enzymes.

References

Pedersen JI, Gustafsson J (1980). "Conversion of 3 alpha, 7 alpha, 12 alpha-trihydroxy-5 beta-cholestanoic acid into cholic acid by rat liver peroxisomes". FEBS Lett. 121 (2): 345–8. Bibcode:1980FEBSL.121..345P. doi:10.1016/0014-5793(80)80377-2. PMID 7461136. Kase F, Bjorkhem I, Pedersen JI (1983). "Formation of cholic acid from 3 alpha, 7 alpha, 12 alpha-trihydroxy-5 beta-cholestanoic acid by rat liver peroxisomes". J. Lipid Res. 24 (12): 1560–7. doi:10.1016/S0022-2275(20)37854-8. PMID 6668450. Russell DW (2003). "The enzymes, regulation, and genetics of bile acid synthesis". Annu. Rev. Biochem. 72: 137–74. doi:10.1146/annurev.biochem.72.121801.161712. PMID 12543708. Falany CN, Johnson MR, Barnes S, Diasio RB (1994). "Glycine and taurine conjugation of bile acids by a single enzyme Molecular cloning and expression of human liver bile acid CoA:amino acid N-acyltransferase". J. Biol. Chem. 269 (30): 19375–9. doi:10.1016/S0021-9258(17)32178-6. PMID 8034703.

Worked examples

Example 1 — a first encounter with Propanoyl-CoA C-acyltransferase

Start with the simplest possible case. Write down what Propanoyl-CoA C-acyltransferase claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In engineering, 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 Propanoyl-CoA C-acyltransferase 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 Propanoyl-CoA C-acyltransferase 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 Propanoyl-CoA C-acyltransferase

In research: Propanoyl-CoA C-acyltransferase appears in engineering 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 Propanoyl-CoA C-acyltransferase 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: Propanoyl-CoA C-acyltransferase is common in secondary-school and first-year university syllabi. It links to neighbouring topics EC 2.3.1, EC 2.3 stubs, Enzymes of unknown structure, so understanding it makes those chapters shorter.
In everyday life: Look for Propanoyl-CoA C-acyltransferase 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 Propanoyl-CoA C-acyltransferase in 20 minutes

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

Frequently asked questions

What is Propanoyl-CoA C-acyltransferase in simple terms?

In enzymology, a propanoyl-CoA C-acyltransferase (EC 2.3.1.176) is an enzyme that catalyzes the chemical reaction 3alpha,7alpha,12alpha-trihydroxy-5beta-cholanoyl-CoA + propanoyl-CoA ⇌ {\displaystyle \rightleftharpoons } CoA + 3alpha,7alpha,12alpha-trihydroxy-24-oxo-5beta-cholestanoyl-CoA Thus, the…

Why does Propanoyl-CoA C-acyltransferase matter?

Because it connects several engineering 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 Propanoyl-CoA C-acyltransferase?

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 Propanoyl-CoA C-acyltransferase.