1Department of Bioinformatics, School of Bioengineering, SRM University, Kattankulathur - 603 203, Kancheepuram Dt., Tamil Nadu, India.
2Department of Bioinformatics, School Biotechnology and Medical Sciences, Karunya University, Karunya Nagar, Coimbatore – 641 114, Tamil Nadu, India.
3Department of Biotechnology and Bioinformatics, Bishop Heber College, Tiruchirappalli - 620 017, Tamil Nadu, India.
*Corresponding Author E-mail: csvinobha@gmail.com
Despite a strong evolutionary pressure to reduce genome size, proteins vary in length over a surprisingly wide range also in very compact genomes. Here we investigated the hydrophobicity forces that act on protein size in 20 different living systems based on length. Overall the alteration in sequences length is subject to food habits and sexual behavior. Another observation is that only few sequences found with length less than 90. It is observed that during the evolution the fraction of large hydrophobic residues (FILMV) reduces considerably in animals compared to that of fungi and plant. To maintain the hydrophobicity, the length of the proteins increases in heterosexual species.
Evolutionary, genome, hydrophobicity, fungi, plant
