Methylation at the 5'-position of cytosine is the only known naturally occurring covalent modification of the mammalian genome. DNA methylation requires the enzymatic activity of DNA 5-cytosine methyltransferase (Dnmt) proteins, which catalyze the transfer of a methyl group from S-adenosyl methionine to the 5'-position of cytosines residing in the dinucleotide CpG motif, and this methylation results in transcriptional repression of the target gene. The Dnmt enzymes are encoded by independent genes. Dnmt1 is the most abundant, and it preferentially methylates hemimethylated DNA and coordinates gene expression during development. Additional mammalian Dnmt proteins include Dnmt2 and Dnmt3. Dnmt2 lacks the large N-terminal regulator domain of Dnmt1, is expressed at substantially lower levels in adult tissues, and is likely involved in methylating newly integrated retroviral DNA. Dnmt3a and Dnmt3b are encoded by two distinct genes, but both are abundantly expressed in embryonic stem cells, where they also methylate CpG motifs on DNA.
Store at +4℃ after thawing. Aliquot store at -20℃ or -80℃. Avoid repeated freeze / thaw cycles.
1*TBS (pH7.4), 1%BSA, 40%Glycerol. Preservative: 0.05% Sodium Azide.
Protein A purified.
CXXC finger protein 9 antibody
CXXC-type zinc finger protein 9 antibody
DNA (cytosine 5 ) methyltransferase 1 antibody
DNA (cytosine-5)-methyltransferase 1 antibody
DNA methyltransferase 1 antibody
DNA methyltransferase HsaI antibody
DNA methyltransferase M.HsaI. antibody
DNA MTase antibody
DNA MTase HsaI antibody
DNMT 1 antibody
Fig1: Western blot analysis of Dnmt1 on HepG2 cells lysates using anti-Dnmt1 antibody at 1/1,000 dilution.
Fig2: ICC staining Dnmt1 in Hela cells (red). The nuclear counter stain is DAPI (blue). Cells were fixed in paraformaldehyde, permeabilised with 0.25% Triton X100/PBS.
Fig3: ICC staining Dnmt1 in HepG2 cells (red). The nuclear counter stain is DAPI (blue). Cells were fixed in paraformaldehyde, permeabilised with 0.25% Triton X100/PBS.
Fig4: ICC staining Dnmt1 in 293T cells (red). The nuclear counter stain is DAPI (blue). Cells were fixed in paraformaldehyde, permeabilised with 0.25% Triton X100/PBS.
Fig5: Immunohistochemical analysis of paraffin-embedded mouse placenta tissue using anti-Dnmt1 antibody. Counter stained with hematoxylin.
1. Liu R et al. Dnmt1 regulates the myogenic lineage specification of muscle stem cells. Sci Rep 6:35355 (2016).
2. Chalertpet K et al. Human papillomavirus type 16 E7 oncoprotein mediates CCNA1 promoter methylation. Cancer Sci 106:1333-40 (2015).
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