Comparative Analysis of Fatty Acid Desaturases in Cyanobacterial Genomes
Joint Authors
Qin, Song
Chi, Xiaoyuan
Yang, Qingli
Zhao, Fangqing
Yang, Yu
Shen, Junjun
Lin, Hanzhi
Source
International Journal of Genomics
Issue
Vol. 2008, Issue 2008 (31 Dec. 2008), pp.1-25, 25 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2008-10-19
Country of Publication
Egypt
No. of Pages
25
Main Subjects
Abstract EN
Fatty acid desaturases are enzymes that introduce double bonds into the hydrocarbon chains of fatty acids.
The fatty acid desaturases from 37 cyanobacterial genomes were identified and classified based upon their conserved histidine-rich motifs and phylogenetic analysis, which help to determine the amounts and distributions of desaturases in cyanobacterial species.
The filamentous or N2-fixing cyanobacteria usually possess more types of fatty acid desaturases than that of unicellular species.
The pathway of acyl-lipid desaturation for unicellular marine cyanobacteria Synechococcus and Prochlorococcus differs from that of other cyanobacteria, indicating different phylogenetic histories of the two genera from other cyanobacteria isolated from freshwater, soil, or symbiont.
Strain Gloeobacter violaceus PCC 7421 was isolated from calcareous rock and lacks thylakoid membranes.
The types and amounts of desaturases of this strain are distinct to those of other cyanobacteria, reflecting the earliest divergence of it from the cyanobacterial line.
Three thermophilic unicellular strains, Thermosynechococcus elongatus BP-1 and two Synechococcus Yellowstone species, lack highly unsaturated fatty acids in lipids and contain only one Δ9 desaturase in contrast with mesophilic strains, which is probably due to their thermic habitats.
Thus, the amounts and types of fatty acid desaturases are various among different cyanobacterial species, which may result from the adaption to environments in evolution.
American Psychological Association (APA)
Chi, Xiaoyuan& Yang, Qingli& Zhao, Fangqing& Qin, Song& Yang, Yu& Shen, Junjun…[et al.]. 2008. Comparative Analysis of Fatty Acid Desaturases in Cyanobacterial Genomes. International Journal of Genomics،Vol. 2008, no. 2008, pp.1-25.
https://search.emarefa.net/detail/BIM-1027042
Modern Language Association (MLA)
Chi, Xiaoyuan…[et al.]. Comparative Analysis of Fatty Acid Desaturases in Cyanobacterial Genomes. International Journal of Genomics No. 2008 (2008), pp.1-25.
https://search.emarefa.net/detail/BIM-1027042
American Medical Association (AMA)
Chi, Xiaoyuan& Yang, Qingli& Zhao, Fangqing& Qin, Song& Yang, Yu& Shen, Junjun…[et al.]. Comparative Analysis of Fatty Acid Desaturases in Cyanobacterial Genomes. International Journal of Genomics. 2008. Vol. 2008, no. 2008, pp.1-25.
https://search.emarefa.net/detail/BIM-1027042
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1027042