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Table 1 RNA spikes: length and base composition

From: Normalization of low-density microarray using external spike-in controls: analysis of macrophage cell lines expression profile

RNA spike

Length (nt)

Base Compositiona)

  

C

U

A

G

sp 1

750

23.5%

26.5%

21.9%

28.1%

sp 2

752

29.7%

23.5%

20.6%

26.2%

sp 3

1000

23.2%

25.9%

16.6%

34.3%

sp 4

1000

23.5%

22.0%

27.0%

27.5%

sp 5

1034

27.5%

22.3%

22.8%

26.4%

sp 6

1250

27.7%

21.8%

22.3%

28.2%

sp 7

1474

27.9%

20.5%

24.4%

27.3%

sp 8

2000

27.2%

21.4%

23.7%

27.8%

  1. a) Expressed as percentage of the base with respect to the total nucleotide content