I've never used these antibodies, but you may like to try from cell signaling. Usually they have very good antibodies.
You can try our antibodies as below:
1. human DNMT1 : http://www.abnova.com/products/products_detail.asp?catalog_id=H00001786-M01
2. about other genes you can check out our catalog in http://www.abnova.com/products/search.asp?KeyWord=DNMT&txtFilterGroup1=&txtFilterGroup2=&Image21.x=7&Image21.y=13&G1=1&G2=5 ,
thank you.
http://www.abnova.com/
I have used human DNMT1, 3a and 3b antibodies from ABCAM for ChIP assays. I found them good. But Western Blot was not very great.
I performed those experiments few years back and moved out to a different field of study in a different place. I do not have the cat..no. available . But Abcam antibody data sheet and technical support surely could help you out . Dnmt3a (ab134142), I believe is good enough for your purpose.
Santa Cruz Abs often don't work, but I got lucky with DNMT1 sc-10222 and DNMT3A sc-20703. They worked fine for human fibroblast cell line. DNMT3B sc-10235 did not work.
DNMT1 is sensitive to storage of lysate or cell pellet. 6 month at -80 and you don't have the protein. DNMT3A to a lesser extent.
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