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  • 11.0 [archived version]
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MBD4 MBD4 TENM1 TENM1 ATF7IP ATF7IP MBD1 MBD1 SETDB1 SETDB1 SUMO1 SUMO1 LIX1 LIX1 PIAS1 PIAS1 CBX5 CBX5 UBE2I UBE2I PIAS3 PIAS3
"MBD1" - Methyl-CpG-binding domain protein 1 in Homo sapiens
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splice isoforms or post-translational modifications are collapsed, i.e. each node represents all the proteins produced by a single, protein-coding gene locus.
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query proteins and first shell of interactors
white nodes:
second shell of interactors
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proteins of unknown 3D structure
filled nodes:
some 3D structure is known or predicted
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Known Interactions
from curated databases
experimentally determined
Predicted Interactions
gene neighborhood
gene fusions
gene co-occurrence
Others
textmining
co-expression
protein homology
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[Homology]
Score
MBD1Methyl-CpG-binding domain protein 1; 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 AFT7IP, 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’ trimethylat [...] (655 aa)    
Predicted Functional Partners:
SUMO1
Small ubiquitin-related modifier 1; Ubiquitin-like protein that can be covalently attached to proteins as a monomer or a lysine-linked polymer. Covalent attachment via an isopeptide bond to its substrates requires prior activation by the E1 complex SAE1-SAE2 and linkage to the E2 enzyme UBE2I, and can be promoted by E3 ligases such as PIAS1-4, RANBP2 or CBX4. This post-translational modification on lysine residues of proteins plays a crucial role in a number of cellular processes such as nuclear transport, DNA replication and repair, mitosis and signal transduction. Involved for instan [...] (101 aa)
       
  0.955
PIAS1
E3 SUMO-protein ligase PIAS1; Functions as an E3-type small ubiquitin-like modifier (SUMO) ligase, stabilizing the interaction between UBE2I and the substrate, and as a SUMO-tethering factor. Plays a crucial role as a transcriptional coregulation in various cellular pathways, including the STAT pathway, the p53 pathway and the steroid hormone signaling pathway. In vitro, binds A/T-rich DNA. The effects of this transcriptional coregulation, transactivation or silencing, may vary depending upon the biological context. Together with PRMT1, may repress STAT1 transcriptional activity, in th [...] (651 aa)
       
  0.943
PIAS3
E3 SUMO-protein ligase PIAS3; Functions as an E3-type small ubiquitin-like modifier (SUMO) ligase, stabilizing the interaction between UBE2I and the substrate, and as a SUMO-tethering factor. Plays a crucial role as a transcriptional coregulation in various cellular pathways, including the STAT pathway and the steroid hormone signaling pathway. Involved in regulating STAT3 signaling via inhibiting STAT3 DNA-binding and suppressing cell growth. Enhances the sumoylation of MTA1 and may participate in its paralog-selective sumoylation. Sumoylates CCAR2 which promotes its interaction with [...] (628 aa)
       
  0.937
UBE2I
SUMO-conjugating enzyme UBC9; Accepts the ubiquitin-like proteins SUMO1, SUMO2, SUMO3 and SUMO4 from the UBLE1A-UBLE1B E1 complex and catalyzes their covalent attachment to other proteins with the help of an E3 ligase such as RANBP2, CBX4 and ZNF451. Can catalyze the formation of poly-SUMO chains. Necessary for sumoylation of FOXL2 and KAT5. Essential for nuclear architecture and chromosome segregation. Sumoylates p53/TP53 at ’Lys-386’; Belongs to the ubiquitin-conjugating enzyme family (158 aa)
         
    0.900
ATF7IP
Activating transcription factor 7-interacting protein 1; Recruiter that couples transcriptional factors to general transcription apparatus and thereby modulates transcription regulation and chromatin formation. Can both act as an activator or a repressor depending on the context. Mediates MBD1-dependent transcriptional repression, probably by recruiting complexes containing SETDB1. Required to stimulate histone methyltransferase activity of SETDB1 and facilitate the conversion of dimethylated to trimethylated H3 ’Lys-9’ (H3K9me3). The complex formed with MBD1 and SETDB1 represses trans [...] (1278 aa)
       
 
  0.768
LIX1
Protein limb expression 1 homolog; Limb and CNS expressed 1; Belongs to the LIX1 family (282 aa)
           
  0.763
SETDB1
Histone-lysine N-methyltransferase SETDB1; Histone methyltransferase that specifically trimethylates ’Lys-9’ of histone H3. H3 ’Lys-9’ trimethylation represents a specific tag for epigenetic transcriptional repression by recruiting HP1 (CBX1, CBX3 and/or CBX5) proteins to methylated histones. Mainly functions in euchromatin regions, thereby playing a central role in the silencing of euchromatic genes. H3 ’Lys-9’ trimethylation is coordinated with DNA methylation. Probably forms a complex with MBD1 and ATF7IP that represses transcription and couples DNA methylation and histone ’Lys-9’ t [...] (1291 aa)
       
 
  0.706
TENM1
Teneurin-1; Involved in neural development, regulating the establishment of proper connectivity within the nervous system. May function as a cellular signal transducer (By similarity) (2732 aa)
       
 
  0.642
CBX5
Chromobox protein homolog 5; Component of heterochromatin that recognizes and binds histone H3 tails methylated at ’Lys-9’ (H3K9me), leading to epigenetic repression. In contrast, it is excluded from chromatin when ’Tyr-41’ of histone H3 is phosphorylated (H3Y41ph). Can interact with lamin-B receptor (LBR). This interaction can contribute to the association of the heterochromatin with the inner nuclear membrane. Involved in the formation of functional kinetochore through interaction with MIS12 complex proteins; Chromobox family (191 aa)
       
 
  0.593
MBD4
Methyl-CpG-binding domain protein 4; Mismatch-specific DNA N-glycosylase involved in DNA repair. Has thymine glycosylase activity and is specific for G-T mismatches within methylated and unmethylated CpG sites. Can also remove uracil or 5-fluorouracil in G-U mismatches. Has no lyase activity. Was first identified as methyl-CpG-binding protein (580 aa)
           
  0.578
Your Current Organism:
Homo sapiens
NCBI taxonomy Id: 9606
Other names: H. sapiens, Homo sapiens, human, man
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