Hepatitis B virus (HBV) infection significantly increases the risk for the development of chronic active hepatitis, cirrhosis, and primary hepatocellular ca
[目的]扩增颈棱蛇蛇毒金属蛋白酶基因,并对其进行系统进化分析。[方法]通过PCR方法扩增颈棱蛇蛇毒金属蛋白酶基因,使用Lasergene Meg Align 8.1.3软件对多个蛇种的蛇毒金属蛋白酶序列进行比对,使用MEGA 6.06对颈棱蛇和其它蛇种的蛇毒金属蛋白酶氨基酸序列进行进化分析。[结果]颈棱蛇蛇毒金属蛋白酶编码区长1 854 bp,编码617个氨基酸残基。该酶的核酸序列与绿栖林蛇、银环
Because of the high toxicityof botulinum toxin, "Fonterra's botulinum toxin-tainted milk powder"has drawn extensive attention.The rising numbers of events a
Epsilon toxin (ETX), a potential biological warfare agent, is produced by toxinotypes B and D of Clostridium perfringens.It can cause lethal enterotoxemia i
免疫系统和动物毒液(肽类毒素混合物)系统的基本生物学共同点就在于在生存过程中主要用于攻击和防御，前者主要针对微生物而后者主要针对捕食与被捕食者。基于它们生物学功
The pore-forming toxin family members aerolysins are produced by many infectious bacteria types apart from Aeromonas, and they are important virulence facto
The lipid bilayer of cell membrane separates the inside environment from the outside.All organism from unicell cyanobacterium to multicellular vertebrates p
The skin of toad Bufo bufo gargarizans Cantor is still used in clinic known as Traditional Chinese Medicine in China nowadays.However, the genomic and natur
Aerolysins belong to the bacterial β-pore forming toxin superfamily.Interestingly, a diverse array of proteins harboring an aerolysin domain fused with oth
Intracellular pathogens cause severe diseases in human and animals.The exact mechanism by which host cells effectively defend themselves against intracellul