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Asian Journal of Plant Sciences
  Year: 2003 | Volume: 2 | Issue: 7 | Page No.: 551-560
DOI: 10.3923/ajps.2003.551.560
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Elucidation of Gene Structure and Function of Prokaryotes and Eukaryotes Through DNA Information Technology

Abdul Sattar Larik and Zahoor Ahmed Soomro

Significant and far reaching developments are constantly taking place in the new emerging field of genomics, the study of gene structure and function. Part of the need for genomics capabilities involves the rapidly emerging field of bioinformatics, which involves obtaining, storing and analysing information derived from studying biological systems. Crucial to bioinformatic analysis are computer algorithms that can compare newly isolated genes with databases containing genetic sequence of known function. A gene product is the key to the understanding of the intricate biological phenomenon from simple unicellular organisms to the incredibly complex multicellular organisms. This review places in contemporary context the new information on gene structure such as the role of DNA in information storage, coding of genetic information, flow of information from DNA to protein, the satellite DNA’s, information from RNA. Gene function is critically traced through the flow of information from DNA to RNA; the expression of functional products in prokaryotic and eukaryotic genomes, new proteomic approaches to gene expression/function, genetrap database, feed forward loop (FFL) system, extensive information through cDNA libraries. Informational implications of gene function in eukaryotes include: the nuclear DNA reversion, feedback from nucleus to cytoplasm, gene activity in coupling and repulsion phases, branching enzymes and the ectopic expression of gene and aberrant transcripts. In addition to the academic goals of perceiving gene structure and functions, there is great potential for agricultural and medicinal applications of functional data in the perceiving of plant and human diseases for pragmatic remedies.
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  •    Gene Finding Using Hidden Markov Model
How to cite this article:

Abdul Sattar Larik and Zahoor Ahmed Soomro , 2003. Elucidation of Gene Structure and Function of Prokaryotes and Eukaryotes Through DNA Information Technology. Asian Journal of Plant Sciences, 2: 551-560.

DOI: 10.3923/ajps.2003.551.560






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