published-canonicalconceptmaha-epistemic/1.0

Cytosine base editing

A Cas-guided deaminase architecture that can install selected C-to-T outcomes without a programmed double-strand break. This candidate preserves the experimental unit—editor or circuit, target, cell system, delivery, protocol, assay, comparator, and observation window—before any broader inference is considered.

Bounded definition

A Cas-guided deaminase architecture that can install selected C-to-T outcomes without a programmed double-strand break.

What the cited work establishes

The study constructs cytosine base editors and reports targeted C-to-T conversion outcomes in specified transformed human and murine cell lines.

The constructs, biological systems, protocols, assays, datasets, and comparisons reported in Programmable editing of a target base in genomic DNA without double-stranded DNA cleavage.

Claims: urn:maha:claim:cytosine-base-editing

What remains a separate question

Reported activity windows, product purity, bystanders, indels, and off-target effects are editor- and context-specific.

The reported windows, efficiencies, byproducts, and indels are editor-, guide-, target-, cell-, delivery-, and assay-specific.

Connected domain graph

Typed dependencies preserve publication state.

Only independently canonical records receive public links and relation statements. Draft graph topology remains private.

Claim ledger

Every proposition keeps its own evidence state.

empirical-claimsingle-study

The cited study constructs and tests cytosine base editors in specified transformed human and murine cell lines.

Scope
The constructs, biological systems, protocols, assays, datasets, and comparisons reported in Programmable editing of a target base in genomic DNA without double-stranded DNA cleavage.
Boundary
Reported activity windows, product purity, bystanders, indels, and off-target effects are editor- and context-specific.
Uncertainty
There is no universal effect estimate for this method; numerical results remain attached to the source experiment, biological system, assay, and analysis choices.
Replication
This candidate records one bounded source package. Independent replications and contradictory results must be compiled separately before evidence maturity is upgraded.

Primary sources

Citation, locator, rights, and boundary travel together.

  1. Source 1 · Nature

    Programmable editing of a target base in genomic DNA without double-stranded DNA cleavage

    Alexis C. Komor, Yongjoo B. Kim, Michael S. Packer, John A. Zuris, David R. Liu

    Exact locator
    Abstract; Figures 1–5; Methods; Extended Data; Supplementary Information.
    Establishes
    The study constructs cytosine base editors and reports targeted C-to-T conversion outcomes in specified transformed human and murine cell lines.
    Boundary
    The reported windows, efficiencies, byproducts, and indels are editor-, guide-, target-, cell-, delivery-, and assay-specific.
    Rights basis
    citation with paraphrase · Maha paraphrases the source-level result and links to the version of record; no article passage is reproduced.
    Declared interests
    The article declares patent applications and company interests involving base-editing technologies.