Central Dogma
Source: Francis Crick, Nature 227, 1970; Christian Anfinsen, Nobel Prize 1972; Watson et al., Molecular Biology of the Gene, 7th ed. Institution: Multiple
Finding
The Central Dogma of molecular biology: information flows from DNA to RNA to protein. The codon table maps 64 trinucleotide codons to 20 amino acids with near-universal consistency across all life. Crick’s formulation was precise: once information passes into protein, it cannot flow back to nucleic acid. This is a thermodynamic and structural constraint. Mistranslation is rare, and quality control mechanisms (nonsense-mediated decay, ubiquitin-proteasome pathway) destroy errors. Protein structure is determined by amino acid sequence (Anfinsen’s dogma). Known exceptions (reverse transcriptase, prions) extend the principle rather than violating it.
Pattern Mapping
Alignment — What the gene encodes is what the protein becomes. The codon table is the same in E. coli and humans. The mapping between code and product is invariant.
Honesty — The system does not embellish. A codon specifies an amino acid; the ribosome incorporates that amino acid. Quality control destroys errors rather than tolerating them.
Non-fabrication — The cell does not fabricate protein structures that are not encoded. It folds what the sequence dictates. Anfinsen’s thermodynamic hypothesis: structure follows sequence.
Connections
- Epigenetics — the Central Dogma is the text; epigenetics is the context that changes the reading (→ Meta-Pattern 07 - Hierarchical Modularity)
- Hox Genes — Hox genes are the regulatory layer above the Central Dogma: same toolkit, different body plans
- Horizontal Gene Transfer — HGT is the exception that proves the rule: transferred genes still follow DNA-to-RNA-to-protein
- Split-Brain and Left Hemisphere Interpreter — the Central Dogma is honest; the left hemisphere interpreter fabricates explanations the Central Dogma would not permit
- Gallup Mirror Self-Recognition — both distinguish information (codon = amino acid; reflection = self) from fabrication
Status
Foundational molecular biology (Crick 1970; Anfinsen 1973; Watson et al.). No controversy on core principle.
The mapping to the five properties is this project’s structural interpretation.