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PAR是在核DNA修复酶聚(ADP-核糖)聚合酶(PARP)激活后合成的。PARP会被DNA链断裂选择性激活,从而催化将长支链的PAR添加到多种核蛋白上,其中最显著的是PARP自身。在存在DNA损伤的活细胞中,所形成的PAR量与损伤程度相当。在DNA损伤条件下,PAR的周转速度很快,半衰期在几分钟范围内,因为PAR会被聚(ADP-核糖)糖水解酶(PARG)迅速水解并转化为游离的ADP-核糖。在严重DNA损伤后,PAR在最初10分钟内可被检测到,之后便会消失。在角质形成细胞中,已证实6D639能在照射后最早4小时检测到UVB诱导的凋亡,因此其性能优于DNA梯状条带分析和TUNEL测定法。由于凋亡过程中存在大量核酸内切酶介导的DNA断裂,PARP在所谓的执行阶段会被强烈激活。在DNA损伤诱导的凋亡情况下,这意味着PAR合成进入“第二轮”。凋亡过程中合成的PAR似乎具有显著的稳定性。PAR免疫荧光在凋亡过程中出现的时间,至少与半胱天冬酶-3对PARP的特异性切割一样早。正如多个研究小组所表明的,这种PAR免疫荧光与其他凋亡标志物具有良好的相关性。
Applications
Suitable for use in Flow Cytometry, Immunocytochemistry, Immunohistochemistry and Western Blot. Other applications have not been tested.
Recommend Dilutions
Immunocytochemistry: 5-20ug/ml Immunohistochemistry (Paraffin): 5-20ug/ml. Dilute with 5% non-fat dried milk in PBS. Western Blot: 2.5ug/ml. Incubate in PBS, 0.05% Tween-20, 5% non-fat dried milk. Optimal dilutions to be determined by the researcher.
Storage and Stability
May be stored at 4°C. For long-term storage, aliquot and store at 4°C. Do not freeze. Aliquots are stable for 12 months after receipt. For maximum recovery of product, centrifuge the original vial prior to removing the cap. Further dilutions can be made in assay buffer.
Immunogen
Purified poly(ADP-ribose).
Form
Supplied as a liquid in 50mM HEPES, pH 7.4, 100mM sodium chloride, 1% BSA, 0.02% sodium azide
Purity
Purified by Protein A affinity chromatography from supernatant.
Specificity
Recognizes poly(ADP-ribose) synthesized by a broad range of PARPs (poly(ADP-ribose) polymerases) Species Crossreactivity: human, mouse, rat and Drosophila.
Clone Type
Monoclonal
Host
Mouse
Source
Human
Isotype
IgG3
Clone Number
6D639 (10H)
Grade
Affinity Purified
Applications
FC IC IHC WB
Crossreactivity
Dr Hu Mo Rt
Shipping Temp
Blue Ice
关键词:- Mouse Anti-Poly ADP-Ribose (PAR)
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产品组分
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规格 储存温度
Mouse Anti-Poly ADP-Ribose(PAR)
P3112-98 100ul -20°C 操作手册
1 1 常温室温
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P3112-98-Mouse Anti-Poly ADP-Ribose(PAR)
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P3112-98-Mouse Anti-Poly ADP-Ribose(PAR)相关单页
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注意事项
保存建议 厂家推荐蓝冰运输。当您收到产品后,按照说明书建议保存于-20°C。 -
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