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BRCA1 BRCA1 NBN NBN ATM ATM ATR ATR TP53BP1 TP53BP1 MDM2 MDM2 TP53 TP53 CDC25C CDC25C CHEK2 CHEK2 CDC25A CDC25A CDS1 CDS1
"CHEK2" - checkpoint kinase 2 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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protein of unknown 3D structure
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second shell of interactors
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Known Interactions
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from curated databases
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experimentally determined
Predicted Interactions
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fusion edge
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gene co-occurrence
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textmining
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protein homology
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CHEK2checkpoint kinase 2 (586 aa)    
Predicted Functional Partners:
ATM
ataxia telangiectasia mutated; Serine/threonine protein kinase which activates checkpoint signaling upon double strand breaks (DSBs), apoptosis and genotoxic stresses such as ionizing ultraviolet A light (UVA), thereby acting as a DNA damage sensor. Recognizes the substrate consensus sequence [ST]-Q. Phosphorylates ’Ser-139’ of histone variant H2AX/H2AFX at double strand breaks (DSBs), thereby regulating DNA damage response mechanism. Also plays a role in pre-B cell allelic exclusion, a process leading to expression of a single immunoglobulin heavy chain allele to enforce clonality and [...] (3056 aa)
        score_image score_image score_image   0.999
CDC25C
cell division cycle 25 homolog C (S. pombe); Functions as a dosage-dependent inducer in mitotic control. Tyrosine protein phosphatase required for progression of the cell cycle. When phosphorylated, highly effective in activating G2 cells into prophase. Directly dephosphorylates CDK1 and activates its kinase activity (473 aa)
      score_image score_image score_image score_image   0.999
TP53
tumor protein p53; Acts as a tumor suppressor in many tumor types; induces growth arrest or apoptosis depending on the physiological circumstances and cell type. Involved in cell cycle regulation as a trans-activator that acts to negatively regulate cell division by controlling a set of genes required for this process. One of the activated genes is an inhibitor of cyclin-dependent kinases. Apoptosis induction seems to be mediated either by stimulation of BAX and FAS antigen expression, or by repression of Bcl-2 expression (By similarity) (393 aa)
        score_image score_image score_image   0.999
CDC25A
cell division cycle 25 homolog A (S. pombe); Tyrosine protein phosphatase which functions as a dosage-dependent inducer of mitotic progression. Directly dephosphorylates CDK1 and stimulates its kinase activity. Also dephosphorylates CDK2 in complex with cyclin E, in vitro (524 aa)
      score_image score_image score_image score_image   0.999
BRCA1
breast cancer 1, early onset; E3 ubiquitin-protein ligase that specifically mediates the formation of ’Lys-6’-linked polyubiquitin chains and plays a central role in DNA repair by facilitating cellular responses to DNA damage. It is unclear whether it also mediates the formation of other types of polyubiquitin chains. The E3 ubiquitin-protein ligase activity is required for its tumor suppressor function. The BRCA1-BARD1 heterodimer coordinates a diverse range of cellular pathways such as DNA damage repair, ubiquitination and transcriptional regulation to maintain genomic stability. Reg [...] (1884 aa)
        score_image score_image score_image   0.999
ATR
ataxia telangiectasia and Rad3 related; Serine/threonine protein kinase which activates checkpoint signaling upon genotoxic stresses such as ionizing radiation (IR), ultraviolet light (UV), or DNA replication stalling, thereby acting as a DNA damage sensor. Recognizes the substrate consensus sequence [ST]-Q. Phosphorylates BRCA1, CHEK1, MCM2, RAD17, RPA2, SMC1 and p53/TP53, which collectively inhibit DNA replication and mitosis and promote DNA repair, recombination and apoptosis. Phosphorylates ’Ser-139’ of histone variant H2AX/H2AFX at sites of DNA damage, thereby regulating DNA damag [...] (2644 aa)
        score_image score_image score_image   0.999
TP53BP1
tumor protein p53 binding protein 1; Plays a key role in the response to DNA damage. May have a role in checkpoint signaling during mitosis. Enhances TP53- mediated transcriptional activation (1977 aa)
        score_image score_image score_image   0.999
MDM2
Mdm2, p53 E3 ubiquitin protein ligase homolog (mouse) (497 aa)
        score_image score_image score_image   0.999
CDS1
CDP-diacylglycerol synthase (phosphatidate cytidylyltransferase) 1; Provides CDP-diacylglycerol an important precursor for the synthesis of phosphatidylinositol (PtdIns), phosphatidylglycerol, and cardiolipin. Overexpression may amplify cellular signaling responses from cytokines. May also play an important role in the signal transduction mechanism of retina and neural cells (461 aa)
        score_image   score_image   0.997
NBN
nibrin; Component of the MRE11-RAD50-NBN (MRN complex) which plays a critical role in the cellular response to DNA damage and the maintenance of chromosome integrity. The complex is involved in double-strand break (DSB) repair, DNA recombination, maintenance of telomere integrity, cell cycle checkpoint control and meiosis. The complex possesses single-strand endonuclease activity and double-strand-specific 3’-5’ exonuclease activity, which are provided by MRE11A. RAD50 may be required to bind DNA ends and hold them in close proximity. NBN modulate the DNA damage signal sensing by recru [...] (754 aa)
        score_image score_image score_image   0.995
Your Current Organism:
Homo sapiens
NCBI taxonomy Id: 9606
Other names: H. sapiens, Homo, Homo sapiens, human, man
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