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ATP-binding cassette (ABC) proteins in aquatic invertebrates: Evolutionary significance and application in marine ecotoxicology
被引:56
作者:
Jeong, Chang-Bum
[1
]
Kim, Hui-Su
[1
]
Kang, Hye-Min
[1
]
Lee, Jae-Seong
[1
]
机构:
[1] Sungkyunkwan Univ, Dept Biol Sci, Coll Sci, Suwon 16419, South Korea
关键词:
ABC transporter;
Multixenobiotic resistance (MXR);
Marine invertebrates;
Environmental pollutants;
MULTIDRUG-RESISTANCE PROTEINS;
COPEPOD TIGRIOPUS-JAPONICUS;
MUSSEL MYTILUS-CALIFORNIANUS;
GENOME-WIDE IDENTIFICATION;
TRANSPORTER GENE FAMILY;
PREGNANE-X-RECEPTOR;
SEA-URCHIN EMBRYOS;
P-GLYCOPROTEIN;
MULTIXENOBIOTIC RESISTANCE;
DREISSENA-POLYMORPHA;
D O I:
10.1016/j.aquatox.2017.01.013
中图分类号:
Q17 [水生生物学];
学科分类号:
071004 ;
摘要:
The ATP-binding cassette (ABC) protein superfamily is known to play a fundamental role in biological processes and is highly conserved across animal taxa. The ABC proteins function as active transporters for multiple substrates across the cellular membrane by ATP hydrolysis. As this superfamily is derived from a common ancestor, ABC genes have evolved via lineage-specific duplications through the process of adaptation. In this review, we summarized information about the ABC gene families in aquatic invertebrates, considering their evolution and putative functions in defense mechanisms. Phylogenetic analysis was conducted to examine the evolutionary significance of ABC gene families in aquatic invertebrates. Particularly, a massive expansion of multixenobiotic resistance (MXR)-mediated efflux transporters was identified in the absence of the ABCG2 (BCRP) gene in Ecdysozoa and Platyzoa, suggesting that a loss of Abcg2 gene occurred sporadically in these species during divergence of Protostome to Lophotrochozoa. Furthermore, in aquatic invertebrates, the ecotoxicological significance of MXR is discussed while considering the role of MXR-mediated efflux transporters in response to various environmental pollutants. (C) 2017 Elsevier B.V. All rights reserved.
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页码:29 / 39
页数:11
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