Rabbit Multiclonal MBD1 antibody. Suitable for ICC/IF, ChIP and reacts with Human samples. Immunogen corresponding to Recombinant Fragment Protein within Human MBD1.
pH: 7.4
Preservative: 0.09% Sodium azide
Constituents: 99.91% PBS
ICC/IF | ChIP | |
---|---|---|
Human | Tested | Tested |
Species | Dilution info | Notes |
---|---|---|
Species Human | Dilution info 1/100 | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Human | Dilution info 2 µg for 106 Cells | Notes - |
Transcriptional repressor that binds CpG islands in promoters where the DNA is methylated at position 5 of cytosine within CpG dinucleotides. Binding is abolished by the presence of 7-mG that is produced by DNA damage by methylmethanesulfonate (MMS). Acts as transcriptional repressor and plays a role in gene silencing by recruiting ATF7IP, which in turn recruits factors such as the histone methyltransferase SETDB1. Probably forms a complex with SETDB1 and ATF7IP that represses transcription and couples DNA methylation and histone 'Lys-9' trimethylation. Isoform 1 and isoform 2 can also repress transcription from unmethylated promoters.
CXXC3, PCM1, MBD1, Methyl-CpG-binding domain protein 1, CXXC-type zinc finger protein 3, Methyl-CpG-binding protein MBD1, Protein containing methyl-CpG-binding domain 1
Rabbit Multiclonal MBD1 antibody. Suitable for ICC/IF, ChIP and reacts with Human samples. Immunogen corresponding to Recombinant Fragment Protein within Human MBD1.
pH: 7.4
Preservative: 0.09% Sodium azide
Constituents: 99.91% PBS
Recombinant multiclonals are a mixture of recombinant antibodies co-expressed from a library of heavy and light chains.
Recombinant multiclonal antibodies offer the sensitivity of polyclonal antibodies by recognising multiple epitopes, along with consistency of a recombinant antibody.
Methyl-CpG binding domain protein 1 (MBD1) also known as CXXC-type and BYE1 domain containing 1 recognizes and binds to methylated CpG sites in the DNA. This protein has a molecular weight of approximately 70 kDa. MBD1 is expressed widely in human tissues with higher levels detectable in the brain particularly the cerebral cortex. It acts within the nucleus where it functions as an important participant in the regulation of gene expression through DNA methylation.
MBD1 influences the repression or activation of genomic transcription. It binds to methylated DNA and interacts with other proteins including methyl CpG binding proteins to form transcriptional repression complexes. This activity plays a role in gene silencing and modulation. MBD1 ensures proper interpretation of epigenetic marks therefore sustaining cellular identity and lineage commitment. In some cells MBD1 also engages with chromatin remodeling complexes to influence chromatin structure.
MBD1 plays a significant role in the epigenetic and transcription regulation pathways. It is directly involved in DNA methylation processes interacting with histone deacetylases such as HDAC1 and other chromatin-modifying proteins. The pathway provides an important mechanism for long-term transcriptional silencing affecting developmental processes and cellular differentiation through methylation-dependent transcriptional regulation. MBD1 shares pathway interactions with proteins like MeCP2 highlighting interconnected roles in maintaining DNA methylation landscapes.
MBD1 has links to neurological disorders and cancer. It shows associations with Rett syndrome a neurodevelopmental disorder through its interaction with other methyl CpG binding proteins. Mutations or dysregulation in MBD1’s function can disrupt normal methylation patterns contributing to gene expression changes seen in disease states. In cancer aberrant MBD1 expression may lead to inappropriate gene silencing impacting tumor suppressor genes. Many cancers including glioblastoma exhibit altered MBD1 expression levels implicating its role in tumorigenesis.
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Enrichment of endogenous MBD1 protein at specific gene loci using ab313550 Chromatin Immunoprecipitation (ChIP) was performed using ab313550 at 4 µg on sheared chromatin from 2 million HeLa cells using the MAGnify ChIP System kit. Normal Rabbit IgG was used as a negative IP control. The purified DNA was analyzed by qPCR with PCR primer pairs over RND2, MLH1 promoter, ALOX12, KRT14 (active) and GAPDH gene body (inactive). Data is presented as fold enrichment of the antibody signal versus the negative control IgG using the comparative CT method.
Immunofluorescent analysis of HeLa cells fixed using 4% formaldehyde (reconstituted in 1X PBS) for 10 min at room temperature and permeabilized using 0.1 % Triton X-100 in PBS for 15 min at room temperature labeling MBD1 with ab313550 at 1/100 dilution followed by Goat anti-Rabbit IgG (H+L) Secondary Antibody, Alexa Fluor 488 conjugate at 1/2000 dilution. Panel a) shows representative cells that were stained for detection and localization of MBD1 protein (green), Panel b) is stained for nuclei (blue) using DAPI. Panel c) represents cytoskeletal F-actin staining using Rhodamine Phalloidin at 1/300 dilution. Panel d) is a composite image of Panels a, b and c clearly demonstrating nuclear localization of MBD1. Panel e) represents control cells with no primary antibody to assess background. The images were captured at 60X magnification.
Immunofluorescent analysis of MBD1 knockout HeLa cells transfected with with specific siRNA fixed using 4% formaldehyde (reconstituted in 1X PBS) for 10 min at room temperature and permeabilized using 0.1 % Triton X-100 in PBS for 15 min at room temperature labeling MBD1 with ab313550 at 1/100 dilution followed by Goat anti-Rabbit IgG (H+L) Secondary Antibody, Alexa Fluor 488 conjugate at 1/2000 dilution. Nuclei (blue) were stained using DAPI, and Rhodamine Phalloidin at 1/300 dilution was used for cytoskeletal F-actin (red) staining. Significant reduction of signal was observed upon siRNA mediated knockdown (panel i-l) confirming the specificity of the antibody to MBD1 (green). The images were captured at 60X magnification.
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