Tdgf1|Tdgf1蛋白|Tdgf1小鼠蛋白|Tdgf1

Characterization and Gene Expression Profiling of Five Human Embryonic Stem Cell Lines Derived in Taiwan

inactivated mouse embryonic fibroblasts as feeder in the hESC medium for more than 44 passages and underwent freezing/thawing processes. All of five hESC lines expressed characteristic undifferentiated hESC markers such as SSEA-4, TRA-1-81, alkaline

Protein Therapeutics: Mouse, Humanized, and Human Antibodies

Antibodies play a vital role in immune defense against pathogens. They are globular glycoproteins produced by plasma cells in response to the antigenic stimulation of B-lymphocytes. Their circulation in blood and lymph contributes to the humoral

【原创】Protein A Sepharose 之进化篇。。。

洗脱条件比较剧烈，最后收集的蛋白质很有可能变性，或者是复性困难。 这种洗脱条件剧烈的Protein A 柱结合的重组蛋白质A一般具有5个串联结构域：E、D、A、B、C。这种重组蛋白A虽然除去了不重要的非结合域，仅由5个结构域组成，每个域均可以和IgG的Fc段结合，但不同的域结合强度略有差异。因此洗脱条件不均一，而且经常需要较低的pH值。如果减少串联结构域的个数，并且采取同型结构域串联，就可以避免不同结构域与抗体Fc 段亲和性的差异，洗脱条件会温和而均一。为此，我们可以做一个试验，比较一下