Expression Pattern of Peptide and Amino Acid Genes in Digestive Tract of Transporter Juvenile Turbot(Scophthalmus maximus L.)

作     者：XU Dandan HE Gen MAI Kangsen ZHOU Huihui XU Wei SONG Fei 

作者机构：Key Laboratory of Aquanutrition of Ministry of AgricultureOcean University of China 

出 版 物：《Journal of Ocean University of China》 (中国海洋大学学报（英文版）)

年 卷 期：2016年第15卷第2期

页      面：334-340页

核心收录：

学科分类：0908[农学-水产] 09[农学] 

基　　金：supported by the National Natural Science Foundation of China (No.31222055) 973 Program (2014CB138602) 

主　　题：turbot digestive tract amino acid peptide transporter expression pattern 

摘      要：Turbot(Scophthalmus maximus L.),a carnivorous fish species with high dietary protein requirement,was chosen to examine the expression pattern of peptide and amino acid transporter genes along its digestive tract which was divided into six segments including stomach,pyloric caeca,rectum,and three equal parts of the remainder of the *** results showed that the expression of two peptide and eleven amino acid transporters genes exhibited distinct *** transporter 1(Pep T1) was rich in proximal intestine while peptide transporter 2(PepT2) was abundant in distal intestine.A number of neutral and cationic amino acid transporters expressed richly in whole intestine including B^0-type amino acid transporter 1(B^0AT1),L-type amino acid transporter 2(LAT2),T-type amino acid transporter 1(TAT1),proton-coupled amino acid transporter 1(PAT1),y^+L-type amino acid transporter 1(y^+LAT1),and cationic amino acid transporter 2(CAT2) while ASC amino acid transporter 2(ASCT2),sodium-coupled neutral amino acid transporter 2(SNAT2),and y^+L-type amino acid transporter 2(y^+LAT2) abundantly expressed in *** addition,system b^(0,+) transporters(rBAT and b^(0,+)AT) existed richly in distal *** findings comprehensively characterized the distribution of solute carrier family proteins,which revealed the relative importance of peptide and amino acid absorption through luminal *** findings are helpful to understand the mechanism of the utilization of dietary protein in fish with a short digestive tract.