Table IV

PABPs are enriched in basic amino acids

Shown are the average percentage of Lys, Arg, and His from the identified PABPs (test set) and the overall population of proteins from the total yeast proteins on the array.

PolyanionMean percentage ofMean pIMean no. positive pitches
Lys (experimental)Arg (experimental)His (experimental)All positive residues
Actin8.745.182.1416.067.864.76
Tubulin9.365.291.8516.508.194.61
Heparin8.544.732.1315.407.964.69
HS8.574.722.0515.347.744.73
DNA10.105.471.8917.468.066.43
Average16.205.04
Population7.604.702.1814.487.403.33
Difference1.72 (11.9%)1.71 (51.4%)
p value0.0081a0.0670.050a0.0137a0.002a0.0079a
  • a Indicates a significant difference (p < 0.05).