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Role of large hydrophobic residues in proteins.


ABSTRACT: Large Hydrophobic Residues (LHR) such as phenylalanine, isoleucine, leucine, methionine and valine play an important role in protein structure and activity. We describe the role of LHR in complete set of protein sequences in 15 different species. That is the distribution of LHR in different proteins of different species is reported. It is observed that the proteins prefer to have 27% of large hydrophobic residues in total and all along the sequence. It is also observed that proteins accumulate more LHR in its active sites. A window analysis on these protein sequences shows that the 27% of LHR is more frequent at window length of 45 amino acids. The influenza virus and P. falciparum show a random distribution of LHR in its proteins compared to other model organisms.

SUBMITTER: Jayaraj V 

PROVIDER: S-EPMC2732037 | biostudies-literature | 2009 Jun

REPOSITORIES: biostudies-literature

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Role of large hydrophobic residues in proteins.

Jayaraj Veerasamy V   Suhanya Ramamoorthi R   Vijayasarathy Marimuthu M   Anandagopu Perumal P   Rajasekaran Ekambaram E  

Bioinformation 20090613 9


Large Hydrophobic Residues (LHR) such as phenylalanine, isoleucine, leucine, methionine and valine play an important role in protein structure and activity. We describe the role of LHR in complete set of protein sequences in 15 different species. That is the distribution of LHR in different proteins of different species is reported. It is observed that the proteins prefer to have 27% of large hydrophobic residues in total and all along the sequence. It is also observed that proteins accumulate m  ...[more]

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