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Please contact Paul Szauter with comments and questions.
Please contact Paul Szauter with comments and questions. | ||||||||
| The Genetic Code |
| nonpolar | polar | basic | acidic | (stop codon) |
| 2nd base | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| U | C | A | G | ||||||
| 1st base | U | UUU | (Phe/F) | UCU | (Ser/S) | UAU | (Tyr/Y) | UGU | (Cys/C) |
| UUC | (Phe/F) | UCC | (Ser/S) | UAC | (Tyr/Y) | UGC | (Cys/C) | ||
| UUA | (Leu/L) | UCA | (Ser/S) | UAA | Stop | UGA | Stop | ||
| UUG | (Leu/L) | UCG | (Ser/S) | UAG | Stop | UGG | (Trp/W) | ||
| C | CUU | (Leu/L) | CCU | (Pro/P) | CAU | (His/H) | CGU | (Arg/R) | |
| CUC | (Leu/L) | CCC | (Pro/P) | CAC | (His/H) | CGC | (Arg/R) | ||
| CUA | (Leu/L) | CCA | (Pro/P) | CAA | (Gln/Q) | CGA | (Arg/R) | ||
| CUG | (Leu/L) | CCG | (Pro/P) | CAG | (Gln/Q) | CGG | (Arg/R) | ||
| A | AUU | (Ile/I) | ACU | (Thr/T) | AAU | (Asn/N) | AGU | (Ser/S) | |
| AUC | (Ile/I) | ACC | (Thr/T) | AAC | (Asn/N) | AGC | (Ser/S) | ||
| AUA | (Ile/I) | ACA | (Thr/T) | AAA | (Lys/K) | AGA | (Arg/R) | ||
| AUG | (Met/M) | ACG | (Thr/T) | AAG | (Lys/K) | AGG | (Arg/R) | ||
| G | GUU | (Val/V) | GCU | (Ala/A) | GAU | (Asp/D) | GGU | (Gly/G) | |
| GUC | (Val/V) | GCC | (Ala/A) | GAC | (Asp/D) | GGC | (Gly/G) | ||
| GUA | (Val/V) | GCA | (Ala/A) | GAA | (Glu/E) | GGA | (Gly/G) | ||
| GUG | (Val/V) | GCG | (Ala/A) | GAG | (Glu/E) | GGG | (Gly/G) | ||
The codon AUG both codes for methionine and serves as an initiation site. The first AUG in an mRNA's
coding
region is the signal to begin translation.
| Ala/A | GCU, GCC, GCA, GCG | Leu/L | UUA, UUG, CUU, CUC, CUA, CUG |
|---|---|---|---|
| Arg/R | CGU, CGC, CGA, CGG, AGA, AGG | Lys/K | AAA, AAG |
| Asn/N | AAU, AAC | Met/M | AUG |
| Asp/D | GAU, GAC | Phe/F | UUU, UUC |
| Cys/C | UGU, UGC | Pro/P | CCU, CCC, CCA, CCG |
| Gln/Q | CAA, CAG | Ser/S | UCU, UCC, UCA, UCG, AGU, AGC |
| Glu/E | GAA, GAG | Thr/T | ACU, ACC, ACA, ACG |
| Gly/G | GGU, GGC, GGA, GGG | Trp/W | UGG |
| His/H | CAU, CAC | Tyr/Y | UAU, UAC |
| Ile/I | AUU, AUC, AUA | Val/V | GUU, GUC, GUA, GUG |
| START | AUG | STOP | UAA, UGA, UAG |