CACrown ArchivesThe cinema collection
EN/FR
Search
Menu
Research dossier · General Reference

Beta-amyrin synthase

class of enzymes

Cross-disciplinary reference desk with index cards, atlas, dictionary and catalogue
General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionDec 20, 2025
Entity authorityQ13417346 ↗
Source-derived summary

β-amyrin synthase (EC 5.4.99.39, 2,3-oxidosqualene beta-amyrin cyclase, AsbAS1, BPY, EtAS, GgbAS1, LjAMY1, MtAMY1, PNY, BgbAS) is an enzyme with systematic name (3S)-2,3-epoxy-2,3-dihydrosqualene mutase (cyclizing, beta-amyrin-forming). This enzyme catalyses the following chemical reaction

(3S)-2,3-epoxy-2,3-dihydrosqualene

⇌

{\displaystyle \rightleftharpoons }

beta-amyrin

Some organism possess a monofunctional beta-amyrin synthase.

Editorial summary

The public source identifies “Beta-amyrin synthase” as class of enzymes. This brief keeps that definition visible, then builds a research path around Beta-amyrin, synthase and class.

Editorial reviewA concise reference frame for defining the subject, testing terminology and identifying the institution closest to the evidence. The current 45-word lead offers orientation but no explicit four-digit date, so chronology should not be assumed. The selected authority fields contribute no independent date. Its value is orientation rather than verdict, with Beta-amyrin, synthase and class providing the first useful test.
Editorial analysis

Why this record matters

A short description can identify a subject without explaining its stakes. For “Beta-amyrin synthase”, the useful work is to connect “class of enzymes” to the records capable of establishing context and consequence.

Evidence profile

Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Dec 20, 2025. The linked authority identifier is Q13417346. None of the 0 selected statements returned an explicit reference.

Critical limits

The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.

Best used for
  • Subject orientation
  • Search vocabulary
  • Locating named sources
Verify next

The closest primary source, responsible institution and strongest cited specialist reference.

Three-step research path

  1. Establish the record: confirm the title “Beta-amyrin synthase”, its source revision and the description used here.
  2. Expand the search: follow Beta-amyrin synthase primary sources, Beta-amyrin synthase archive and Beta-amyrin research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “Beta-amyrin synthase”?
  2. Which cited source is closest to the event, object or claim?
  3. Which institution is responsible for the underlying evidence?
Subject index

Search terms from this dossier

Source & attribution

This entry incorporates text from “Beta-amyrin synthase” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.