Kodoi

Biologia molekularrean, kodoia RNA mezularian (mRNA) dauden base nitrogenatuen (A, C, G eta U) hirukotea da, aminoazido bat kodetzen duena.

Kode genetikoaren funtsa mRNA-n dauden base nitrogenatu eta aminoazidoen arteko harremana izaten da. RNA mezularian 64 kodoi daude, 20 aminoazido kodetzen dituztenak. Kodoi gehiago daudenez aminoazidoak baino, kode genetikoa endekatua dago, hots, base nitrogenatuen hirukote batek (kodoi) baino gehiagok aminoazido bera kodetu dezake.

Hurrengo taulak RNA mezulariaren kodoiak kodetzen dituzten aminoazidoekin lotzen ditu:

2. basea
U C A G
1.
basea		 U

UUU (Phe/F) Fenilalanina
UUC (Phe/F) Fenilalanina
UUA (Leu/L) Leuzina
UUG (Leu/L) Leuzina, Start

UCU (Ser/S) Serina
UCC (Ser/S) Serina
UCA (Ser/S) Serina
UCG (Ser/S) Serina

UAU (Tyr/Y) Tirosina
UAC (Tyr/Y) Tirosina
UAA Ochre (Stop)
UAG Amber (Stop)

UGU (Cys/C) Zisteina
UGC (Cys/C) Zisteina
UGA Opal (Stop)
UGG (Trp/W) Triptofano

C

CUU (Leu/L) Leuzina
CUC (Leu/L) Leuzina
CUA (Leu/L) Leuzina
CUG (Leu/L) Leuzina, Start

CCU (Pro/P) Prolina
CCC (Pro/P) Prolina
CCA (Pro/P) Prolina
CCG (Pro/P) Prolina

CAU (His/H) Histidina
CAC (His/H) Histidina
CAA (Gln/Q) Glutamina
CAG (Gln/Q) Glutamina

CGU (Arg/R) Arginina
CGC (Arg/R) Arginina
CGA (Arg/R) Arginina
CGG (Arg/R) Arginina

A

AUU (Ile/I) Isoleuzina, Start2
AUC (Ile/I) Isoleuzina
AUA (Ile/I) Isoleuzina
AUG (Met/M) Metionina, Start1

ACU (Thr/T) Treonina
ACC (Thr/T) Treonina
ACA (Thr/T) Treonina
ACG (Thr/T) Treonina

AAU (Asn/N) Asparagina
AAC (Asn/N) Asparagina
AAA (Lys/K) Lisina
AAG (Lys/K) Lisina

AGU (Ser/S) Serina
AGC (Ser/S) Serina
AGA (Arg/R) Arginina
AGG (Arg/R) Arginina

G

GUU (Val/V) Balina
GUC (Val/V) Balina
GUA (Val/V) Balina
GUG (Val/V) Balina, Start2

GCU (Ala/A) Alanina
GCC (Ala/A) Alanina
GCA (Ala/A) Alanina
GCG (Ala/A) Alanina

GAU (Asp/D) Azido aspartiko
GAC (Asp/D) Azido aspartiko
GAA (Glu/E) Azido glutamiko
GAG (Glu/E) Azido glutamiko

GGU (Gly/G) Glizina
GGC (Gly/G) Glizina
GGA (Gly/G) Glizina
GGG (Gly/G) Glizina

Kanpo estekak
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