Open Access

Phylogenetic and structural analysis of the phospholipase A2 gene family in vertebrates

  • Authors:
    • Qi Huang
    • Yuan Wu
    • Chao Qin
    • Wenwu He
    • Xing Wei
  • View Affiliations

  • Published online on: December 23, 2014     https://doi.org/10.3892/ijmm.2014.2047
  • Pages: 587-596
  • Copyright: © Huang et al. This is an open access article distributed under the terms of Creative Commons Attribution License [CC BY_NC 3.0].

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Abstract

The phospholipase A (PLA)2 family is the most complex gene family of phospholipases and plays a crucial role in a number of physiological activities. However, the phylogenetic background of the PLA2 gene family and the amino acid residues of the PLA2G7 gene following positive selection gene remain undetermined. In this study, we downloaded 49 genomic data sets of PLA from different species, including the human, house mouse, Norway rat, pig, dog, chicken, cattle, African clawed frog, Sumatran orangutan and the zebrafish species. Phylogenetic relationships were determined using the neighbor-joining (NJ), minimum evolution (ME) and maximum parsimony (MP) methods, as well as the Bayesian information criterion. The results were then presented as phylogenetic trees. Positive selection sites were detected using site, branch and branch‑site models. These methods led us to the following assumptions: i) closer lineages were observed between PLA2G16 and PLA2G6, PLA2G7 and PLA2G4, PLA2G3 and PLA2G12, as well as among PLA2G10, PLA2G5 and PLA2G15; ii) PLA2G5 appeared to be the origin of the PLA2 family, and PLA2G7 was one of the most evolutionarily distant PLA2 proteins; iii) 16 positive-selection sites were detected and were marked in the PLA2G7 protein sequence as 327D, 257Q, 276G, 34s, 66G, 67C, 319S, 28N, 50S, 54T, 58R, 75T, 88Q, 92R, 179H and 191K.
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March-2015
Volume 35 Issue 3

Print ISSN: 1107-3756
Online ISSN:1791-244X

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Spandidos Publications style
Huang Q, Wu Y, Qin C, He W and Wei X: Phylogenetic and structural analysis of the phospholipase A2 gene family in vertebrates. Int J Mol Med 35: 587-596, 2015
APA
Huang, Q., Wu, Y., Qin, C., He, W., & Wei, X. (2015). Phylogenetic and structural analysis of the phospholipase A2 gene family in vertebrates. International Journal of Molecular Medicine, 35, 587-596. https://doi.org/10.3892/ijmm.2014.2047
MLA
Huang, Q., Wu, Y., Qin, C., He, W., Wei, X."Phylogenetic and structural analysis of the phospholipase A2 gene family in vertebrates". International Journal of Molecular Medicine 35.3 (2015): 587-596.
Chicago
Huang, Q., Wu, Y., Qin, C., He, W., Wei, X."Phylogenetic and structural analysis of the phospholipase A2 gene family in vertebrates". International Journal of Molecular Medicine 35, no. 3 (2015): 587-596. https://doi.org/10.3892/ijmm.2014.2047