← Back to catalogue
Published

methyltransferase

vr.tr.methyltransferase · thing-q415875

Let an agent explain methyltransferases and their classes, relay mechanisms, substrates and biological roles from biochemistry references, describe medical and biotechnological relevance, and distinguish methyltransferases from demethylases and from other transferases.

Thing Registry Physical world and living systems PHY.MAT
Bundle → Layer → Finding → QuestionsClassifiersWhat it isWhy it existsDistinguishing featuresWhat robots and AI may and may not doMoral aspectsOwnersLinks to other meta-modelsIdentity and identifiersDirect propertiesRecognitionCapabilities and actionsHazards and failure modesStandards and interfacesContext of useSources

Bundle → Layer → Finding → Questions Filled

4 bundles · 8 layers · 8 findings · 16 questions

Understand What methyltransferases are.

Definition

Definition and mechanism.

Definition

Definition.

  1. What is a methyltransferase, and how does methyl transfer from S-adenosyl methionine work? definition
  2. Is the question about the class, a specific enzyme or demethylation? boundary

Classes

Classes.

Classes

Classes.

  1. How do DNA, RNA, protein and small-molecule methyltransferases differ, including the specific enzymes named in the registry? definition
  2. Which entry fits the specific enzyme? action
Biology Biological roles.

Epigenetics

Epigenetics.

Epigenetics

Epigenetics.

  1. How do DNA and histone methyltransferases regulate gene expression? provenance
  2. Which references are standard? provenance

Metabolism

Metabolism and biosynthesis.

Metabolism

Metabolism.

  1. What roles do methyltransferases play in alkaloid, chlorophyll, cofactor and neurotransmitter metabolism? provenance
  2. Which sources are cited? provenance
Medicine Medicine and biotechnology.

Disease

Disease and drugs.

Disease

Disease.

  1. How are methyltransferases involved in cancer and other diseases, and how do inhibitors work, in general terms? provenance
  2. Is the user asking about their own treatment, which needs a clinician? boundary

Tools

Research tools.

Tools

Tools.

  1. How are methyltransferases used in epigenome editing and biotechnology? provenance
  2. Which entry fits epigenome editing? action
Context Structure and history.

Structure

Structure.

Structure

Structure.

  1. What structural families of methyltransferases exist, and how do they bind SAM? provenance
  2. Which entry fits SET domain? action

History

History.

History

History.

  1. How were methyltransferases and DNA methylation discovered? provenance
  2. Which entry fits the history of epigenetics? action

Classifiers Filled

Family
Thing Registry
Category
Physical world and living systems
Entry kind
thing
Plane
PHY
Domain
PHY.MAT
Other names and narrower kinds
protein methyltransferases, RNA methyltransferase, Putrescine N-methyltransferase, Magnesium protoporphyrin IX methyltransferase, Nicotinate N-methyltransferase, Methionine S-methyltransferase, nicotinamide N-methyltransferase, (RS)-norcoclaurine 6-O-methyltransferase, (S)-coclaurine-N-methyltransferase, (S)-scoulerine 9-O-methyltransferase, (S)-tetrahydroprotoberberine N-methyltransferase, (ribulose-bisphosphate carboxylase)-lysine N-methyltransferase

What it is Filled

An enzyme that transfers a methyl group from a donor, usually S-adenosyl methionine, to a substrate such as DNA, RNA, proteins, lipids or small molecules, forming a large class within the transferases that includes DNA methyltransferases regulating gene expression, RNA methyltransferases modifying transcripts, protein methyltransferases acting on histones and other proteins, and small-molecule enzymes such as putrescine N-methyltransferase in alkaloid biosynthesis, magnesium protoporphyrin IX methyltransferase in chlorophyll synthesis, nicotinate and methionine methyltransferases; methyltransferases are central to epigenetics and are drug targets.

Why it exists Filled

Let an agent explain methyltransferases and their classes, relay mechanisms, substrates and biological roles from biochemistry references, describe medical and biotechnological relevance, and distinguish methyltransferases from demethylases and from other transferases.

Distinguishing features Filled

  • Methyl transfer
  • SAM dependence
  • Diverse substrates
  • Epigenetic roles

What robots and AI may and may not do Filled

Must not

  • Overstate preliminary research as established cures.
  • Give medical advice about drugs that target these enzymes.
  • Misrepresent epigenetic findings as determining a person's fate.

Only with a human decision

  • Interpreting genetic or epigenetic tests for a person.

May

  • Explain the classes and functions of methyltransferases, citing biochemistry sources.
  • Relay published research on their roles in gene regulation and disease.

Moral aspects Filled

  • Claims about epigenetics can be misused to blame or stigmatize groups.
  • Patients may be misled by hype around experimental therapies.

Who is affected

  • Patients
  • Research participants

Owners Filled

Steward

Nobody owns the enzyme class; it belongs to science.

Master systems

  • Enzyme nomenclature databases

Links to other meta-models Filled

parent

  • Q407355 - registry parent class
  • Q74797060 - registry parent class

related

  • transferase - in registry terms
  • one-carbon group transferase - in registry terms
  • S-adenosyl methionine - as methyl donor
  • demethylase - which removes methyl groups

What else AI and robots need to interact with it Filled

Identity and identifiers required Filled

  • Vercy registry: vr.tr.methyltransferase
  • Wikidata: Q415875 (https://www.wikidata.org/wiki/Q415875)
  • EC: 2.1.1 methyltransferases
  • GO: GO:0008168 methyltransferase activity

Direct properties required Filled

  • EC class: EC 2.1.1 code
  • main donor: S-adenosyl methionine molecule
  • human methyltransferases: over 200 count - estimates

Recognition required Filled

  • Enzyme transferring methyl groups
  • DNA, RNA and protein methyltransferases; putrescine, magnesium protoporphyrin IX, nicotinate and methionine methyltransferases
  • Demethylases remove methyl groups; other transferases move different groups
  • Not a visible object; enzymes.

Capabilities and actions required Filled

  • explain classes and mechanism
  • relay substrates and roles
  • describe medical relevance
  • distinguish related enzymes

Hazards and failure modes required Filled

  • Confusing methyltransferases with demethylases
  • Overgeneralising across substrate classes
  • Agents giving personal medical advice on epigenetic drugs

Standards and interfaces required Filled

  • Enzyme nomenclature of the IUBMB
  • Drug regulation for methyltransferase inhibitors

Context of use required Filled

  • Not applicable; an enzyme class.
  • DNA methyltransferases such as DNMT1 and DNMT3
  • RNA methyltransferases such as METTL3
  • protein and histone methyltransferases such as EZH2
  • small-molecule N-, O- and S-methyltransferases including putrescine, nicotinate and methionine methyltransferases
  • methyltransferases in chlorophyll and cofactor biosynthesis such as magnesium protoporphyrin IX methyltransferase
  • structural families such as Rossmann-fold and SET-domain enzymes

Sources Filled

  1. Wikidata item Q415875: methyltransferase - identity and sense of the item
  2. Wikipedia: Methyltransferase - general description of the item

Open questions

  • Should DNA methyltransferase and histone methyltransferase be separate primary entries?
  • How should biochemistry references be linked?
  • The registry entry has merged aliases naming specific enzymes; should they be split off?

Machine files

Card as JSON Specification Card backlog vercy.card/1

Provenance

thing registry research (pass 2) · unreviewed

Built from: models/things/publications/thing-q415875/spec.json