D4H5, D6A8 and D10F7 were generated against degenerate peptides containing four asymmetric dimethylarginine (ADMA) residues XXXXRme2aXXRme2aXXXXRme2aXXX Rme2aX by Cell Signaling Technology (CST). D4H5 and D6A8 have been previously described20 (link) and are commercially available as part of an ADMA antibody mixture (CST, Catalog #13522). Anti CAS3 antibodies were custom raised by Bethyl laboratories against a peptide pool comprising amino acids 1-20 and 176-195 of human CAS3. CAS3 is also known asFAM168B or MANI; NM_001009993). Anti-methyl CAS3R87me2a (meCAS3) was generated against the epitope CTAVYPVRme2aSAYPQQSR by Covance. Methyl MED12R1899me2a (meMED12) was custom generated against the epitope TSVYRme2aQQQP by CST. PRMT1 antibody was a gift from Stephane Richard (McGill University). H3R2me2a (Millipore, Catalog #05-808), H3R17me2a (Millipore, Catalog #07-214), H3R8me2a (Active Motif, Catalog #39651), CARM1 (Bethyl, Catalog #A300-421A) and β-actin (Sigma, Catalog #A5316) were obtained commercially.
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