产品货号XY1371
产品名称 Presenilin 1抗体
蛋白名
Presenilin-1
别称AD3; FAD; PS1; PS-1; S182
Presenilin 1抗体
免疫原多肽
来源兔
特异性抗人，大鼠，小鼠、兔
分子量52KD
克隆类型多克隆
应用IH(P)免疫组化(石蜡)；IH(F)免疫组化(冰冻)；IC细胞免疫化学；WB免疫印迹
成分200μg/ml亲和纯化抗体，0.01M PBS，30%甘油。
保存条件连续使用时4°C存储，保质期六个月；长期存储时建议分装为10ul以上小包装-20°C存储，并避免反复冻融，保质期一年。
背景资料Alzheimer＇s disease (AD) patients with an inherited form of the disease carry mutations in the presenilin proteins (PSEN1; PSEN2) or in the amyloid precursor protein (APP). These disease-linked mutations result in increased production of the longer form of amyloid-beta (main component of amyloid deposits found in AD brains). Presenilins are postulated to regulate APP processing through their effects on gamma-secretase, an enzyme that cleaves APP. Also, it is thought that the presenilins are involved in the cleavage of the Notch receptor, such that they either directly regulate gamma-secretase activity or themselves are protease enzymes. Several alternatively spliced transcript variants encoding different isoforms have been identified for this gene, the full-length nature of only some have been determined.
 参考效价：

抗体保存得当与否直接决定了抗体的活性和使用效果。如果抗体保存得当，大部分抗体活性都可以维持数月甚至数年。请按照说明书或者抗体标签上推荐的保存条件正确保存抗体！无论是保存还是运输，绝对避免反复冻融抗体！

1.拿到抗体后请务必在1000-3000转离心1-2分钟后再打开管盖进行分装和保存！（由于运输过程中反复颠簸，管内微量抗体容易聚集在管盖处，一旦直接打开容易流失抗体。请放心抗体出厂时保证已装入足量。）

2.对于大部分抗体，比较合适的保存方式是分装后保存在-20℃冰箱。

◇分装可以程度降低反复冻融对抗体活性的损害，Presenilin 1抗体同时也降低了多次从同一管中吸取抗体造成污染的可能性。

◇分装的量以一次实验用完为好，但建议*少不要少于10μL每份。分装体积越小，抗体浓度可能会受到蒸发以及管壁吸附的影响，同时分装次数越多移液吸头吸附的抗体也越多，可能会误认为抗体没有足量装入。（用无菌的进口0.2ML离心管来分装抗体，国产的小管一般没有经过很好的硅化处理，容易吸附抗体蛋白，影响抗体活性。）

◇分装时请将无菌的微量移液器吸头先插入管底部反复吹打几次后再吸出抗体，Presenilin 1抗体以便抗体有效成分与抗体保护剂充分混匀。

◇复融后的分装抗体如果一次用不完，请将剩余母液保存在4℃冰箱，避免再冻起来！

◇绝对避免将抗体保存在自动除霜冰箱的冷藏室中。尽量将抗体保存在手动除霜冰箱里面，而不是在冰箱门上。

3.大部分抗体收到后4℃短暂保存1-2周对抗体活性是基本没有影响的。如果抗体很快（1-2周内）就能使用完，推荐在4℃保存，避免反复冻融对抗体活性的损害。如果要长期保存则分装后-20℃保存。

4.即用型抗体请务必保存在4℃冰箱，一定不能冷冻保存。

5.特殊抗体的保存：

◇酶联抗体：一般保存在4℃，尽量避免冷冻起来。否则可能会导致酶活力的下降或者丧失。

◇偶联抗体：所有偶联抗体需要4℃避光保存。尤其是荧光标记抗体，对光极为敏感，因此所有实验阶段也是要避光操作的。

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