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|Title:||Structure-function annotation and phylogenetic strategy of nifH domain of a cyanobacterium—Chlorogloeopsis sp.|
|Authors:||Lakshmi, P T V|
Maheswari, S Uma
|Keywords:||BLAST P;Cyanobacteria;Chlorogloeopsis;NifH domain;Phylogram|
|Abstract:||Exploration of the available protein sequences of the Cyanobacterial genera Chlorogloeopsis of Stigonematales from the NCBI database to annotate structural and functional domains through BLOCKS SEARCHER and SWISS PDB VIEWER (SWISSMODEL) revealed eleven different important domains, of which nitrogen fixing domain showed high frequency of occurrence (18.18%), among the sequences explored. Therefore, it was particularly compared with other protein sequences available in the databases in order to obtain similarity and to evolve a phylogram. Similarity search for the NifH/frxC family sequence using BLAST P showed that it is similar to nitrogenase protein of the genera Mastigocladus, Nostoc, Anabaena and other uncultured cyanobacterium. Phylogenetic tree based on the similarities obtained from BLAST P indicates the evolutionary relationships.|
|Appears in Collections:|| IJBT Vol.08(1) [January 2009]|
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