+**4a1** marks a distinct identifier within a complex system, often denoting a unique [Gene Variant](/wiki/Gene_Variant) or [Protein Subunit](/wiki/Protein_Subunit). Its specific configuration plays a subtle yet critical role in broader biological or material processes.
+## See also
+- [Genetic Code](/wiki/Genetic_Code)
+- [Protein Structure](/wiki/Protein_Structure)
+- [Molecular Biology](/wiki/Molecular_Biology)
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