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. 2007 Sep 17;8:326. doi: 10.1186/1471-2164-8-326

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Copyright © 2007 Altincicek and Vilcinskas; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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E. tenax PGRP is homologous to PGRP-SB1 from Drosophila. (A) BlastP search with E. tenax PGRP-SB1 sequence resulted in similar sequences from several Drosophila species and the differences are indicated in the alignment. Red color indicates 90% and blue color 50% consensus. The amino-terminal 24 amino acids represent a putative signal sequence. Accession numbers of PGRP-SB1 proteins are: E. tenax, AM706416; D. simulans, Q70PX8; D. melanogaster, Q70PY2; D. pseudoobscura, Q29DT4. (B) A Bayesian protein tree was generated using the sequence of Eristalis PGRP (Eten PGRP SB1, indicated by a red circle) and sequences of human (Hsap PGRPs), D. melanogaster (Dmel PGRPs), and A. gambiae PGRPs (Agam ENSANGPs) and we found that Ersitalis PGRP grouped nearest to Drosophila PGRP-SB1. T3 lysozyme (N-acetylmuramoyl-L-alanine amidase, P20331) of the bacteriophage T3 was used as out-group. The scale bar represents the substitutions per site according to the model of amino acid evolution applied.