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. 2008 Jun 12;9:284. doi: 10.1186/1471-2164-9-284

Table 1.

Percentage of GC-composition in different regions of pre-mRNA for diverse animal species.

SPECIES % GC-content
5'-UTRs CDS 3'-UTRs Introns

Human 60% 52% 44% 41%
Mouse 59 52 44 43
Cow 60 54 44 43
Chicken 57 51 41 41
Zebrafish 45 50 37 35
Drosophila 45 54 36 40