CodSeqGen: A tool for generating synonymous coding sequences with desired GC-contents
2020
Al-Ssulami, Abdulrakeeb M. | Azmi, Aqil M. | Hussain, Muhammad
Identification of regulatory elements is essential for understanding the mechanism behind regulating gene expression. These regulatory elements—located in or near gene—bind to proteins called transcription factors to initiate the transcription process. Their occurrences are influenced by the GC-content or nucleotide composition. For generating synthetic coding sequences with pre-specified amino acid sequence and desired GC-content, there exist two stochastic methods, multinomial and maximum entropy. Both methods rely on the probability of choosing the codon synonymous for usage in regard to a specific amino acid. In spite the latter exhibited unbiased manner, the produced sequences are not exactly obeying the GC-content constraint. In this paper, we present an algorithmic solution to produce coding sequences that follow exactly a primary amino acid sequence and a desired GC-content. The proposed tool, namely CodSeqGen, depends on random selection for smaller subsets to be traversed using the backtracking approach.
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