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Phylogenomic analysis of transferrin family from animals and plants

文献类型: 外文期刊

作者: Bai, Lina 1 ; Qiao, Mu 2 ; Zheng, Rong 1 ; Deng, Changyan 1 ; Mei, Shuqi 2 ; Chen, Wanping 3 ;

作者机构: 1.Huazhong Agr Univ, Coll Anim Sci & Technol, Wuhan 430070, Hubei Province, Peoples R China

2.Hubei Acad Agr Sci, Inst Anim Husb & Vet, Wuhan 430064, Hubei Province, Peoples R China

3.Huazhong Agr Univ, Coll Food Sci & Technol, Wuhan 430070, Hubei Province, Peoples R China

关键词: Iron-binding;Lactoferrin;Melanotransferrin;Plant transferrin;Serotransferrin;Transferrin

期刊名称:COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS ( 影响因子:2.674; 五年影响因子:2.941 )

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收录情况: SCI

摘要: Transferrins have been identified in animals and green algae, and they consist of a family of evolutionarily related proteins that play a central role in iron transport, immunity, growth and differentiation. This study assessed the transferrin genes among 100 genomes from a wide range of animal and plant kingdoms. The results showed that putative transferrins were widespread in animals, but their gene quantity and type differ greatly between animal groups. Generally, Mammalia possess abundant transferrin genes, whereas Trematoda contain few ones. Melanotransferrin and serotransferrin are widely distributed in vertebrates, while melanotransferrin-like and transferrin-like 1 are frequent in invertebrates. However, only a few plant species detected putative transferrins, and a novel transferrin member was first uncovered in Angiospermae and Pteridophyta. The structural comparison among transferrin family members revealed seven very well-repeated and conserved characteristic motifs, despite a considerable variation in the overall sequences. The phylogenetic analysis suggested that gene duplication, gene loss and horizontal transfer contributed to the diversification of transferrin family members, and their inferred evolutionary scenario was proposed. These findings help to the understanding of transferrin distribution, characteristic motifs and residues, and evolutionary process. (C) 2015 Elsevier Inc All rights reserved.

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