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

Metridin

Enzyme

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 revisionJul 25, 2025
Entity authorityQ12357564 ↗
Source-derived summary

Metridin (EC 3.4.21.3, Metridium proteinase A, sea anemone protease A, sea anemone proteinase A) is an enzyme. This enzyme catalyses the following chemical reaction

Preferential cleavage: Tyr-, Phe-, Leu-; little action on Trp-

This digestive enzyme is isolated from the sea anemone Metridium senile.

Editorial summary

“Metridin” enters the record as enzyme. Crown Archives preserves that source wording while asking what Metridin and Enzyme can confirm, complicate or overturn.

Editorial reviewA practical starting point whose main value is the path it opens into stronger specialist and primary sources. The current 44-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 strongest next move is a source search built around Metridin and Enzyme.
Editorial analysis

Why this record matters

“Metridin” is worth following because a concise public description often conceals a longer documentary argument. Here, Metridin and Enzyme provides the most credible route into that argument.

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 Jul 25, 2025. The linked authority identifier is Q12357564. None of the 0 selected statements returned an explicit reference.

Critical limits

Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. 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 “Metridin”, its source revision and the description used here.
  2. Expand the search: follow Metridin primary sources, Metridin archive and Metridin 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 “Metridin”?
  2. What terminology or title could unlock a more precise catalogue search?
  3. Which institution is responsible for the underlying evidence?
Subject index

Search terms from this dossier

Source & attribution

This entry incorporates text from “Metridin” 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.