Journal
PROTEIN ENGINEERING DESIGN & SELECTION
Volume 18, Issue 12, Pages 559-561Publisher
OXFORD UNIV PRESS
DOI: 10.1093/protein/gzi061
Keywords
algorithm; codon; degenerate; design; library
Funding
- NIBIB NIH HHS [EB 000205] Funding Source: Medline
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Degenerate codon libraries are frequently used in protein engineering and evolution studies but are often limited to targeting a small number of positions to adequately limit the search space. To mitigate this, codon degeneracy can be limited using heuristics or previous knowledge of the targeted positions. To automate design of libraries given a set of amino acid sequences, an algorithm (LibDesign) was developed that generates a set of possible degenerate codon libraries, their resulting size, and their score relative to a user-defined scoring function. A gene library of a specified size can then be constructed that is representative of the given amino acid distribution or that includes specific sequences or combinations thereof. LibDesign provides a new tool for automated design of high-quality protein libraries that more effectively harness existing sequence-structure information derived from multiple sequence alignment or computational protein design data.
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