目的研究STR位点D13S317在温州地区的遗传多态性,获得相应的群体遗传学数据。方法在温州地区随机抽取128名无血缘关系汉族个体的静脉血,EDTA抗凝,用chelex-100法提取DNA。用Beckm an CEQ 8800毛细管测序仪测定序列,应用PCR技术和聚丙烯...目的研究STR位点D13S317在温州地区的遗传多态性,获得相应的群体遗传学数据。方法在温州地区随机抽取128名无血缘关系汉族个体的静脉血,EDTA抗凝,用chelex-100法提取DNA。用Beckm an CEQ 8800毛细管测序仪测定序列,应用PCR技术和聚丙烯酰胺凝胶垂直板电泳分型。结果温州地区汉族群体D13S317基因座发现7个等位基因及19种基因型,其基因型分布符合Hardy-W e iberg平衡(P>0.05)。其个人识别能力(Dp)、其杂合度(H)、非父排除率(PE)和多态性信息含量(PIC)分别为0.921、0.875、0.745和0.77。其重复序列为[TATC]n。结论D13S317在法医学应用和群体遗传学研究中有较高的价值。展开更多
Components with strong adsorption capacity for cholates from buckwheat proteins were screened, separated and purified by several methods, and the effects of ultra-high-pressure(UHP) on the structure and function of bu...Components with strong adsorption capacity for cholates from buckwheat proteins were screened, separated and purified by several methods, and the effects of ultra-high-pressure(UHP) on the structure and function of buckwheat 13S globulin(BW13SG) were studied. Samples were treated by UHP at different p H(3.0 and 7.0) value(s) and at 100–500 MPa for 10–30 min. The results showed that the tertiary structure of BW13SG was partially denatured and aggregated. The decrease in the unordered structure indicated that UHP resulted in a looser secondary structure of BW13SG. UHP treatment also increased solubility, emulsion activity and stability, foaming capacity and stability. The samples treated at 500 MPa, p H 3.0 for 30 min had the most enhanced functionality. Moreover, under this condition, the sodium cholate and sodium deoxycholate adsorption capacities of BW13SG were both higher than 98% and the adsorption capacity of sodium taurocholate, which can be difficult to adsorb, was higher than 60%.展开更多
文摘目的研究STR位点D13S317在温州地区的遗传多态性,获得相应的群体遗传学数据。方法在温州地区随机抽取128名无血缘关系汉族个体的静脉血,EDTA抗凝,用chelex-100法提取DNA。用Beckm an CEQ 8800毛细管测序仪测定序列,应用PCR技术和聚丙烯酰胺凝胶垂直板电泳分型。结果温州地区汉族群体D13S317基因座发现7个等位基因及19种基因型,其基因型分布符合Hardy-W e iberg平衡(P>0.05)。其个人识别能力(Dp)、其杂合度(H)、非父排除率(PE)和多态性信息含量(PIC)分别为0.921、0.875、0.745和0.77。其重复序列为[TATC]n。结论D13S317在法医学应用和群体遗传学研究中有较高的价值。
基金the financial support by the Open Project Program of State Key Laboratory of Dairy Biotechnology (No. SKLDB2018-002)National Natural Science Foundation of China (No. 31871805 & No. 31501437)+1 种基金Shanghai Municipal Education Commission (Plateau Discipline Construction Program)China Agriculture Research System (CARS-08-D2)。
文摘Components with strong adsorption capacity for cholates from buckwheat proteins were screened, separated and purified by several methods, and the effects of ultra-high-pressure(UHP) on the structure and function of buckwheat 13S globulin(BW13SG) were studied. Samples were treated by UHP at different p H(3.0 and 7.0) value(s) and at 100–500 MPa for 10–30 min. The results showed that the tertiary structure of BW13SG was partially denatured and aggregated. The decrease in the unordered structure indicated that UHP resulted in a looser secondary structure of BW13SG. UHP treatment also increased solubility, emulsion activity and stability, foaming capacity and stability. The samples treated at 500 MPa, p H 3.0 for 30 min had the most enhanced functionality. Moreover, under this condition, the sodium cholate and sodium deoxycholate adsorption capacities of BW13SG were both higher than 98% and the adsorption capacity of sodium taurocholate, which can be difficult to adsorb, was higher than 60%.
