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Open Access Research article

An ancient family of SelB elongation factor-like proteins with a broad but disjunct distribution across archaea

Gemma C Atkinson*, Vasili Hauryliuk and Tanel Tenson

Author Affiliations

University of Tartu, Institute of Technology, Tartu, Estonia

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BMC Evolutionary Biology 2011, 11:22  doi:10.1186/1471-2148-11-22

Published: 21 January 2011

Additional files

Additional file 1:

Baysian inference tree of aSelB and aSelBL with aIF2γ, bacterial SelB and EF-Tu as the outgroup. The tree was generated from 298 aligned amino acid positions. The SDSF at the end of the run was 0.02 Branch and tip labels are as per the Figure 1 legend.

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Additional file 2:

Table showing distribution of aSelBL, aSelB, SelD and pylS across complete archaeal genomes. Square brackets indicate divergent or partial sequences (details in text). The percentage cysteine content of each proteome is indicated.

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Open Data

Additional file 3:

Table of upstream and downstream genes from aSelBL and aSelB. Arrows ">" show the direction of gene relative aSelBL or aSelB. The "X" at position 0 indicates the aSelBL or aSelB gene. HP stands for hypothetical protein, and is followed by additional details if it shares homology with a particular protein or domain. Genes with names in bold are transcribed in the same direction as aSelBL. Colours show homologous conserved flanking genes.

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Open Data

Additional file 4:

Analysis of SelBL distribution corellation with cysteine content in archaeal proteomes. Colored circles represent data points for individual genomes (see Additional file 2), and the colour code for taxonomic groups is given in the inset box.

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Open Data