Amino Acid Single-Letter Codes


(Acronyms) for Codons

Amino Acid3-Letter Code1-Letter Code (Acronym)Example Codons
AlanineAlaAGCU, GCC, GCA, GCG
ArginineArgRCGU, CGC, CGA, CGG, AGA, AGG
AsparagineAsnNAAU, AAC
Aspartic acidAspDGAU, GAC
CysteineCysCUGU, UGC
Glutamic acidGluEGAA, GAG
GlutamineGlnQCAA, CAG
GlycineGlyGGGU, GGC, GGA, GGG
HistidineHisHCAU, CAC
IsoleucineIleIAUU, AUC, AUA
LeucineLeuLUUA, UUG, CUU, CUC, CUA, CUG
LysineLysKAAA, AAG
Methionine (Start)MetMAUG
PhenylalaninePheFUUU, UUC
ProlineProPCCU, CCC, CCA, CCG
SerineSerSUCU, UCC, UCA, UCG, AGU, AGC
ThreonineThrTACU, ACC, ACA, ACG
TryptophanTrpWUGG
TyrosineTyrYUAU, UAC
ValineValVGUU, GUC, GUA, GUG
Stop codonStop*UAA, UAG, UGA

How this fits into the LOGOS–BIOS mapping

  • Language unit level (codon): AUG, UUU, GCU β€” the graphemic representation.
  • Lexeme level (amino acid name): Methionine, Phenylalanine, Alanine.
  • Acronym level (single letter): M, F, A β€” used in protein sequences.

So in bio-semantics terms:

  • Codon is the word spelling.
  • Amino acid name is the dictionary definition.
  • Single-letter code is the symbolic acronym used in higher-level syntactic structures (protein chains).

Complete Codon Dictionary – SolveForce Communications


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