The villin/gelsolin/fragmin superfamily is a conserved Ca^2+-dependent family of actin-regulating proteins that is widely present both in mammalian and non-mammalian organisms. They have traditionally been characteri...The villin/gelsolin/fragmin superfamily is a conserved Ca^2+-dependent family of actin-regulating proteins that is widely present both in mammalian and non-mammalian organisms. They have traditionally been characterized by the same core of three or six tandem gelsolin subdomains. The study in vertebrates and lower eukaryotic cells has revealed that the villin/gelsolin/fragmin superfamily of proteins has versatile functions including severing, capping, nucleating or bundling actin filaments. In plants, encouraging progress has been made in this field of research in recent years. This review will summarize the identified plant homologs of villin/gelsolin/fragmin superfamily, thus providing a basis for reflection on their biochemical activities and functions in plants.展开更多
基金Supported by the National Natural Science Foundation of China (30630005,30470176 and 30325005)the State Key Basic Research and Development Plan of China (2006CB100100).
文摘The villin/gelsolin/fragmin superfamily is a conserved Ca^2+-dependent family of actin-regulating proteins that is widely present both in mammalian and non-mammalian organisms. They have traditionally been characterized by the same core of three or six tandem gelsolin subdomains. The study in vertebrates and lower eukaryotic cells has revealed that the villin/gelsolin/fragmin superfamily of proteins has versatile functions including severing, capping, nucleating or bundling actin filaments. In plants, encouraging progress has been made in this field of research in recent years. This review will summarize the identified plant homologs of villin/gelsolin/fragmin superfamily, thus providing a basis for reflection on their biochemical activities and functions in plants.
文摘本文使用低分子肝素(Fragmin)作为抗凝剂一次性给药进行血液透析.观察了26例患者294次血液透析的疗效。结果显示,使用 Fragmin 抗凝时,透析器重复使用平均4.5次,未见明显透析器内及透析管路凝血;用药前后凝血酶原时间、凝血酶原活动度、部分凝血活酶时间、血红蛋白、血小板计数无明显变化(P>0.05);每次用药前后血浆抗因子 Xa 活性变化显著(P<0.001);未发现严重出血病例。本文的结论是透析开始时,一次性给予 Fragmin 行 HD 抗凝,安全有效、简单方便。