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glycosyltransferases

vr.tr.glycosyltransferases · thing-q67201373

Let an agent explain glycosyltransferases, relay their reaction, classification, biological roles and examples from biochemistry sources, describe the named enzymes and the inclusion of ADP-ribosyltransferases within the EC glycosyltransferase classification, and distinguish glycosyltransferases from glycosidases and other transferase classes.

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 glycosyltransferases are.

Definition

Definition.

Definition

Definition.

  1. What is a glycosyltransferase, and how does it differ from glycosidases, other transferases and ADP-ribosyltransferases? definition
  2. Is the question about biochemistry, glycobiology or a specific enzyme? boundary

Enzymes

Named enzymes.

Enzymes

Enzymes.

  1. What are protein O-GlcNAc transferase and xylosyltransferase, and why are the diphtheria toxin and other ADP-ribosyltransferases different? definition
  2. Which entry fits the specific enzyme? action
Biochemistry Reaction.

Reaction

Sugar transfer.

Reaction

Reaction.

  1. How do glycosyltransferases transfer sugars from donors to acceptors? provenance
  2. Which references are standard? provenance

Classification

Classification.

Classification

Classification.

  1. How are glycosyltransferases classified in CAZy families? provenance
  2. Which sources are cited? provenance
Biology Roles.

Glycans

Building glycans.

Glycans

Glycans.

  1. How do glycosyltransferases build glycans and glycoconjugates? provenance
  2. Which entry fits glycosylation? action

Blood groups

Blood group antigens.

Blood groups

Blood groups.

  1. How do glycosyltransferases determine ABO blood group antigens? provenance
  2. Is the information accurate? boundary
Context Applications.

Drugs

Drug and vaccine glycosylation.

Drugs

Drugs.

  1. How does glycosylation affect biologic drugs and vaccines? provenance
  2. Which entry fits biopharmaceutical? action

Research

Glycobiology.

Research

Research.

  1. How are glycosyltransferases studied in glycobiology? provenance
  2. Is the presentation neutral and attributed? boundary

Classifiers Filled

Family
Thing Registry
Category
Physical world and living systems
Entry kind
thing
Plane
PHY
Domain
PHY.MAT
Other names and narrower kinds
Diphtheria toxin (NAD+-dipthamide ADP-ribosyltransferase), (Skp1-protein)-hydroxyproline N-acetylglucosaminyltransferase, Alpha-1,4-glucan-protein synthase (ADP-forming), Dolichyl-phosphate-mannose-protein mannosyltransferase, Protein O-GlcNAc transferase, protein xylosyltransferase, Nicotinate-nucleotide diphosphorylase (carboxylating), Dinitrogenase reductase ADP-ribosyltransferase, 1,3-beta-galactosyl-N-acetylhexosamine phosphorylase, 1,4-beta-D-xylan synthase, arabinosyltransferase, Limonoid glucosyltransferase

What it is Filled

A large class of enzymes that transfer a glycosyl group from a donor, usually a nucleotide sugar, to an acceptor such as another sugar, a protein, a lipid or a small molecule, building the glycans and glycoconjugates central to biology; the registry aliases name specific glycosyltransferases such as protein O-GlcNAc transferase and protein xylosyltransferase, along with ADP-ribosyltransferases including diphtheria toxin, which transfer ADP-ribosyl groups and belong within the EC glycosyltransferase classification. Glycosyltransferases underlie blood group antigens, cell signalling and drug and vaccine glycosylation, and are studied in glycobiology.

Why it exists Filled

Let an agent explain glycosyltransferases, relay their reaction, classification, biological roles and examples from biochemistry sources, describe the named enzymes and the inclusion of ADP-ribosyltransferases within the EC glycosyltransferase classification, and distinguish glycosyltransferases from glycosidases and other transferase classes.

Distinguishing features Filled

  • Transfer sugars
  • Build glycans
  • Many families
  • Central to glycobiology

What robots and AI may and may not do Filled

Must not

  • Present research findings on these enzymes as approved treatments.
  • Claim a link between an enzyme variant and a disease in a specific person.
  • Misrepresent database entries or invent enzyme functions.
  • Share identifiable genetic data from research participants.

Only with a human decision

  • Using enzyme variant data in a clinical decision for a person.

May

  • Describe glycosyltransferase families and their roles from scientific databases.
  • Look up enzyme classification and sequence entries in public databases.

Moral aspects Filled

  • Defects in glycosylation cause rare diseases that families need honest information about.
  • Research data can identify participants if handled carelessly.

Who is affected

  • Patients with glycosylation disorders
  • Research participants
  • Researchers

Owners Filled

Steward

Nobody owns the enzymes; curators of enzyme and carbohydrate databases keep the reference entries.

Master systems

  • Enzyme classification and carbohydrate-active enzyme databases

Links to other meta-models Filled

parent

  • Q407355 - registry parent class

related

  • transferase - in registry terms
  • glycan
  • glycoside hydrolase
  • ADP-ribosyltransferase - misfiled alias

What else AI and robots need to interact with it Filled

Identity and identifiers required Filled

  • Vercy registry: vr.tr.glycosyltransferases
  • Wikidata: Q67201373 (https://www.wikidata.org/wiki/Q67201373)

Direct properties required Filled

  • donor: usually a nucleotide sugar note
  • CAZy classification: many GT families note
  • registry parent: transferase note

Recognition required Filled

  • These enzymes transfer a glycosyl group to an acceptor.
  • Examples include diphtheria toxin ADP-ribosyltransferase, Skp1-hydroxyproline N-acetylglucosaminyltransferase, alpha-1,4-glucan-protein synthase, dolichyl-phosphate-mannose-protein mannosyltransferase, protein O-GlcNAc transferase and protein xylosyltransferase.
  • Glycosidases break glycosidic bonds, other transferase classes move different groups, and ADP-ribosyltransferases transfer ADP-ribosyl groups within the EC glycosyltransferase classification.
  • Not visible; proteins studied as reagents and in structures.

Capabilities and actions required Filled

  • explain the reaction and classification
  • relay biological roles
  • describe named enzymes
  • flag misfiled aliases

Hazards and failure modes required Filled

  • Incorrectly excluding ADP-ribosyltransferases from the EC glycosyltransferase classification can mislead users.
  • Glycosyltransferases can be confused with glycosidases.
  • Glycobiology can be oversimplified.

Standards and interfaces required Filled

  • Enzyme Commission nomenclature
  • CAZy database classification

Context of use required Filled

  • Building glycans by transferring sugars.
  • nucleotide-sugar-dependent glycosyltransferases
  • protein glycosyltransferases such as OGT
  • lipid glycosyltransferases
  • polysaccharide synthases

Sources Filled

  1. Wikidata item Q67201373: glycosyltransferases - identity and sense of the item
  2. Wikipedia: Glycosyltransferase - general description of the item

Open questions

  • The registry ADP-ribosyltransferase aliases should be reviewed as a different class
  • How should CAZy families be linked?
  • Should protein glycosyltransferases be a separate entry?

Machine files

Card as JSON Specification Card backlog vercy.card/1

Provenance

thing registry research (pass 2) · unreviewed

Built from: models/things/publications/thing-q67201373/spec.json