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Table 1 Proteins with and without start codon introns

From: An overabundance of phase 0 introns immediately after the start codon in eukaryotic genes

  Vertebrata Arthropoda Fungi Magnoliophyta
  sci no sci sci no sci sci no sci sci no sci
length 253.7 333.7 271.3 419.2 289.1 403.7 152.9 211.2
A 6.84% 7.04% 7.56% 7.22% 7.54% 7.74% 8.23% 8.46%
C 1.76% 2.12% 1.36% 1.91% 1.08% 1.21% 2.03% 1.94%
D 5.15% 4.86% 5.52% 5.31% 5.37% 5.55% 4.68% 5.35%
E 6.69% 7.08% 6.78% 6.61% 7.28% 6.57% 6.67% 6.44%
F 3.63% 3.79% 3.48% 3.82% 3.93% 3.72% 3.55% 3.39%
G 6.85% 6.26% 5.90% 5.55% 5.89% 6.46% 7.90% 7.56%
H 2.49% 2.59% 2.36% 2.60% 2.08% 2.45% 2.47% 2.53%
I 4.98% 4.42% 5.18% 5.18% 5.30% 5.10% 4.61% 4.37%
K 7.94% 5.95% 8.08% 5.89% 6.77% 5.53% 6.52% 5.20%
L 9.32% 10.26% 9.89% 9.88% 9.03% 9.30% 8.61% 8.83%
M 2.40% 2.35% 2.62% 2.51% 1.94% 2.19% 2.60% 2.54%
N 3.45% 3.52% 4.63% 4.59% 4.57% 3.87% 3.31% 3.45%
P 5.40% 5.94% 4.20% 5.02% 5.66% 5.96% 5.10% 5.51%
Q 4.42% 4.75% 4.57% 4.81% 4.32% 3.90% 3.64% 3.52%
R 6.20% 5.77% 6.43% 5.84% 5.71% 5.90% 8.09% 7.16%
S 6.75% 7.99% 6.20% 7.76% 8.13% 8.54% 7.16% 8.54%
T 5.13% 5.15% 4.98% 5.37% 5.46% 5.71% 4.85% 4.94%
V 7.01% 6.20% 6.43% 6.09% 6.08% 6.12% 6.22% 6.58%
W 0.87% 1.27% 0.90% 1.06% 0.97% 1.40% 1.27% 1.41%
Y 2.74% 2.68% 2.92% 3.00% 2.88% 2.78% 2.50% 2.28%
  1. Average length (in amino acids) and amino acid frequencies for proteins without signal peptides, divided into proteins with ("sci") and without ("no sci") start codon introns. Where the difference for a particular amino acid is greater than 0.5%, the higher percentage is shown in boldface.