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Bioinformatic analysis of Acyl Carier Protein (ACP) in eukaryotes and prokaryotes

Document Type : Research Paper

Authors

1 Ph.D. student of Plant Biotechnology, Department of Plant Biotechnology, Shahid Beheshti University, Tehran, Iran

2 Associate Professor, Department of Plant Biotechnology & Life Science, Shahid Beheshti University, Tehran, Iran; Biotechnolgy Agricultural Biotechnology Research Institute of Iran, Karaj, Iran.

3 Ph.D. Student of Plant Breeding, Department of Agronomy and Plant Breeding, University of Guilan, Rasht, Iran

Abstract

The biosynthesis pathway of fatty acids is one of the important pathways in the body of most organisms that an enzyme Acyl carrier protein (ACP) plays an important role in it. The purpose of this study is phylogenetic and in silico analysis of gene ACP. More analysis indicate that ACP gene has 4 exons, 3 introns and and 2 mRNA in prokaryotes and 13 exons, 12 introns and 9 mRNA in eukaryotes. This protein has target mitochondrial in plant eukaryotes and non-mitochondrial target in prokaryotes and it is not also included of secreted proteins. The results of multiple alignments by T-Coffee server showed that the ACP genes between bacterial species are more protected than plant species. Phylogenetic analysis of ACP proteins in prokaryotes is revealed that except for a cluster, in other case Gram-positive bacteria are in one cluster and gram-negative bacteria are in another cluster. In eukaryotes, different plant species are scattered in different clusters. These results indicated that clustering in eukaryotes are not relate to species. In addition, the study of ACP proteins in eukaryotes and prokaryotes revealed that both eukaryotes and prokaryotes are placed together in some clusters that is due to the similarities of sequences in species. Comparison of the secondary structure of the protein in eukaryotes and prokaryotes showed that the number of alpha and beta sheets in prokaryotes are more than of eukaryotes. Three-dimensional modeling of this protein was done by homology modeling using Swiss Model database in wheat (as representative of eukaryotic) and bacteria Clostridioides difficile 630 (as represented prokaryotes). The best templates were extracted with high similarity from PDB database. To validation of modeled structure and esterochemical analysis, Ramachandran plot was drawn and dihydral angles were calculated. Structural quality evaluation results showed that the proposed models are good quality and stability. The study of protein structure may help to understand protein function and the details of its structure can be useful in studies of the active site of the protein and docking.

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References
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Crop Biotechnology
Volume 7, Issue 17 - Serial Number 17
July 2017
Pages 15-29
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