Adaptive Selection in the Evolution of Aquaglyceroporins in Mammals

被引:1
作者
Rajput, Shiveeli [1 ]
Gautam, Devika [1 ]
Vats, Ashutosh [1 ]
Rana, Chanchal [1 ]
Behera, Manisha [2 ]
Roshan, Mayank [1 ]
Ludri, Ashutosh [3 ]
De, Sachinandan [1 ]
机构
[1] Natl Dairy Res Inst NDRI, Anim Biotechnol Ctr, Anim Genom Lab, ICAR, Karnal 132001, Haryana, India
[2] Univ Delhi, Hindu Coll, Dept Zool, Delhi 110007, India
[3] Natl Dairy Res Inst NDRI, Dept Anim Physiol, ICAR, Karnal 132001, Haryana, India
关键词
Aquaglyceroporins; Mammals; Membrane intrinsic proteins; Molecular evolution; Positive selection; AMINO-ACID SITES; PHYLOGENETIC ANALYSIS; POSITIVE SELECTION; AQUAPORINS; GENE; TOOL;
D O I
10.1007/s00239-023-10112-5
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Aquaporins (AQPs) are integral membrane proteins responsible for water transport across cellular membranes in both prokaryotes and eukaryotes. A subfamily of AQPs, known as aquaglyceroporins (AQGPs), facilitate the transport of small solutes such as glycerol, water, and other solutes across cellular membranes. These proteins are involved in a variety of physiological processes, such as organogenesis, wound healing, and hydration. Although AQPs have been studied extensively in different species, their conservation patterns, phylogenetic relationships, and evolution in mammals remain unexplored. In the present study, 119 AQGP coding sequences from 31 mammalian species were analysed to identify conserved residues, gene organisation, and most importantly, the nature of AQGP gene selection. Repertoire analysis revealed the absence of AQP7, 9, and 10 genes in certain species of Primates, Rodentia, and Diprotodontia, although not all three genes were absent in a single species. Two Asparagine-Proline-Alanine (NPA) motifs located at the N- and C-terminal ends, aspartic acid (D) residues, and the ar/R region were conserved in AQP3, 9, and 10. Six exons encoding the functional MIP domain of AQGP genes were found to be conserved across mammalian species. Evolutionary analysis indicated signatures of positive selection in AQP7, 9, and 10 amongst different mammalian lineages. Furthermore, substitutions of certain amino acids located close to critical residues may alter AQGP functionality, which is crucial for substrate selectivity, pore formation, and transport efficiency required for the maintenance of homeostasis in different mammalian species.
引用
收藏
页码:441 / 457
页数:17
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