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zinc finger

vr.tr.zinc-finger · thing-q204785

Let an agent explain zinc fingers, relay structure, classes, functions and biotechnology uses from structural biology sources, describe the named domain types and proteins, and distinguish zinc fingers from other DNA-binding motifs, zinc as a nutrient, TALENs and CRISPR systems.

Thing Registry Cross-cutting context XCT.QLT
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 a zinc finger is.

Definition

Definition.

Definition

Definition.

  1. What is a zinc finger, and how does it differ from other DNA-binding motifs, dietary zinc, TALENs and CRISPR? definition
  2. Is the question about structure, a specific protein or genome editing? boundary

Named

Named domains.

Named

Named.

  1. What are MYND-type, RING-type and Cys2-His2 zinc fingers and the RNF4, RNF141 and RNF146 RING fingers? definition
  2. Which entry fits the specific domain? action
Structure Structure.

Fold

Fold and coordination.

Fold

Fold.

  1. How do cysteine and histidine residues coordinate zinc? provenance
  2. Which references are standard? provenance

DNA binding

DNA recognition.

DNA binding

DNA binding.

  1. How do C2H2 zinc fingers recognise DNA sequences? provenance
  2. Which sources are cited? provenance
Function Functions.

Ubiquitin

RING E3 ligases.

Ubiquitin

Ubiquitin.

  1. How do RING finger proteins act as E3 ubiquitin ligases? provenance
  2. Which entry fits ubiquitin ligase? action

Editing

Genome editing.

Editing

Editing.

  1. How were zinc finger nucleases used for genome editing, and how do they compare with CRISPR? provenance
  2. Which entry fits zinc finger nuclease? action
Context History and databases.

History

Discovery.

History

History.

  1. How was the zinc finger discovered in TFIIIA? provenance
  2. Which entry fits Aaron Klug? action

Databases

Domain databases.

Databases

Databases.

  1. How do InterPro and Pfam classify zinc finger domains? provenance
  2. Which entry fits InterPro? action

Classifiers Filled

Family
Thing Registry
Category
Cross-cutting context
Entry kind
thing
Plane
XCT
Domain
XCT.QLT
Other names and narrower kinds
zinc finger, MYND-type, Zinc finger, RING-type, CYS2-HIS2 zinc finger, RNF4, RING finger, HC subclass, RNF146, RING finger, HC subclass, RNF141, RING finger, HC subclass, MDM2, modified RING finger, HC subclass, E3 ubiquitin-protein ligase RNF43, Zinc finger, RING-type, MGRN1/RNF157, modified RING finger, C3HC5-type, E3 ubiquitin-protein ligase RGLG, RING finger, plant, E3 ubiquitin-protein ligase ZNRF3, Zinc finger, RING-type, E3 ubiquitin-protein ligase Msl2, zinc RING finger

What it is Filled

A small protein structural motif in which one or more zinc ions are coordinated by cysteine and histidine residues to stabilise the fold, first identified in the transcription factor TFIIIA in 1985 through work including that of Aaron Klug, and found in many protein families, including the classical Cys2-His2 zinc fingers of DNA-binding transcription factors, RING finger domains of E3 ubiquitin ligases such as RNF4, RNF141 and RNF146, and MYND-type zinc fingers; engineered zinc finger nucleases were an early tool for targeted genome editing.

Why it exists Filled

Let an agent explain zinc fingers, relay structure, classes, functions and biotechnology uses from structural biology sources, describe the named domain types and proteins, and distinguish zinc fingers from other DNA-binding motifs, zinc as a nutrient, TALENs and CRISPR systems.

Distinguishing features Filled

  • Zinc coordination
  • Small domains
  • Very common
  • Engineerable binding

What robots and AI may and may not do Filled

Must not

  • Present zinc finger gene-editing research as ready treatment for patients.
  • Assist in editing human germline cells outside lawful, ethically approved research.
  • Fabricate or misreport binding data.

Only with a human decision

  • Using zinc finger based editing results in clinical or heritable applications.

May

  • Explain zinc finger structure and its role in DNA and protein binding from molecular biology sources.
  • Annotate zinc finger motifs in sequences it is authorized to analyse.

Moral aspects Filled

  • Engineered zinc fingers are gene-editing tools; heritable edits raise lasting ethical questions.

Who is affected

  • Patients in trials
  • Future generations
  • Researchers

Owners Filled

Steward

Nobody owns the motif; patent holders own specific engineered tools.

Links to other meta-models Filled

parent

  • Q60390432 - registry parent class

related

  • amino acid motifs - in registry terms
  • zinc
  • RING finger domain
  • zinc finger nuclease

What else AI and robots need to interact with it Filled

Identity and identifiers required Filled

  • Vercy registry: vr.tr.zinc-finger
  • Wikidata: Q204785 (https://www.wikidata.org/wiki/Q204785)

Direct properties not applicable Not applicable

  • first identified: 1985 year - TFIIIA
  • classical motif: C2H2 with about 30 amino acids note
  • human C2H2 zinc finger proteins: over 700 count - approximate

Plane XCT: no invented physical properties.

Recognition optional Filled

  • Zinc-stabilised protein motif
  • Zinc finger MYND-type, RING-type zinc finger, Cys2-His2 zinc finger, RNF4, RNF146 and RNF141 RING fingers
  • Helix-turn-helix and leucine zippers are other motifs; dietary zinc is a mineral; TALENs and CRISPR are other editing tools
  • Not a visible object; seen in molecular models as a finger-like loop around a zinc ion.

Capabilities and actions required Filled

  • explain structure
  • relay classes and functions
  • describe named domains
  • relay genome editing uses

Hazards and failure modes required Filled

  • Treating named proteins as motif classes
  • Confusing zinc fingers with dietary zinc
  • Overstating editing precision

Standards and interfaces required Filled

  • InterPro and Pfam domain classifications
  • Gene therapy regulation for zinc finger nuclease therapies

Context of use required Filled

  • Stabilising protein folds for binding DNA, RNA, proteins and lipids.
  • C2H2 zinc fingers
  • RING fingers
  • PHD fingers
  • MYND zinc fingers
  • treble clef and zinc ribbon folds
  • zinc finger nucleases

Sources Filled

  1. Wikidata item Q204785: zinc finger - identity and sense of the item
  2. Wikipedia: Zinc finger - general description of the item

Open questions

  • Should RING finger proteins be split off as protein entries?
  • How should InterPro be linked?
  • Should zinc finger nucleases 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-q204785/spec.json