This antibody detects a ~180 kDa protein, corresponding to the apparent molecular mass of Dnmt1 on SDS-PAGE immunoblots in samples of Human and Mouse origin.
Cross-Reactivity (Details)
Species reactivity (expected):Mouse and Zebrafish. Species reactivity (tested):Human.
Characteristics
Synonyms: MCMT, HsaI, AIM, CXXC9, DNA (cytosine-5)-methyltransferase 1, DNA methyltransferaseHsaI, CXXC-type zinc finger protein 9
Purification
Protein G Chromatography.
Immunogen
Synthetic peptide corresponding to amino acids 637-650 of Human Dnmt1 (Gene accessionnumber NP_001370). AA Sequence: EKDDREDKENAFKR
Western blot: 2-4 μg/mL.2 μg/mL of this antibody was sufficient for detection of Dnmt1 in 10 μg of Mouse ES cell
Restrictions
For Research Use only
Concentration
0.5 mg/mL
Buffer
PBS containing 0.05 % BSA as stabilizer and 0.05 % Sodium Azide as preservative.
Preservative
Sodium azide
Precaution of Use
This product contains sodium azide: a POISONOUS AND HAZARDOUS SUBSTANCE which should be handled by trained staff only.
Storage
4 °C/-20 °C
Storage Comment
Store the antibody undiluted at 2-8 °C for one month or (in aliquots) at -20 °C for longer. Avoid repeated freezing and thawing. Shelf life: one year from despatch.
Methylation of DNA at cytosine residues plays an important role in regulation of gene expression, genomic imprinting and is essential for mammalian development. Hypermethylation of CpG islands in tumor suppressor genes or hypomethylation of bulk genomic DNA may be linked with development of cancer. To date, 3 families of mammalian DNA methyltransferase genes have been identified which include Dnmt 1, Dnmt 2 and Dnmt 3. Dnmt 1 is constitutively expressed in proliferating cells and inactivation of this gene causes global demethylation of genomic DNA and embryonic lethality. Dnmt 2 is expressed at low levels in adult tissues and its inactivation does not affect DNA methylation or maintenance of methylation. The Dnmt3 family members, Dnmt 3a and Dnmt 3b, are strongly expressed in ES cells but their expression is down regulated in differentiating ES cells and is low in adult somatic tissue. Dnmt1 co-purifies with the retinoblastoma (Rb) tumour suppressor gene product, E2F 1, and HDAC 1. Dnmt 1 also cooperates with Rb to repress transcription from promoters containing E2F binding sites suggesting a link between DNA methylation, histone deacetylase and sequence specific DNA binding activity, as well as a growth regulatory pathway that is disrupted in nearly all cancer cells. (1-6)Synonyms: AIM, CXXC-type zinc finger protein 9, CXXC9, DNA (cytosine-5)-methyltransferase 1, DNA methyltransferase HsaI, HsaI, MCMT