TP53BP1
Encyclopedia
Tumor suppressor p53-binding protein 1 also known as p53-binding protein 1 or 53BP1 is a protein
Protein
Proteins are biochemical compounds consisting of one or more polypeptides typically folded into a globular or fibrous form, facilitating a biological function. A polypeptide is a single linear polymer chain of amino acids bonded together by peptide bonds between the carboxyl and amino groups of...

 that in humans is encoded by the TP53BP1 gene
Gene
A gene is a molecular unit of heredity of a living organism. It is a name given to some stretches of DNA and RNA that code for a type of protein or for an RNA chain that has a function in the organism. Living beings depend on genes, as they specify all proteins and functional RNA chains...

.

Clinical significance

53BP1 is underexpressed in most cases of triple-negative breast cancer.

Interactions

TP53BP1 has been shown to interact
Protein-protein interaction
Protein–protein interactions occur when two or more proteins bind together, often to carry out their biological function. Many of the most important molecular processes in the cell such as DNA replication are carried out by large molecular machines that are built from a large number of protein...

 with Replication protein A1, RPA2
RPA2
Replication protein A 32 kDa subunit is a protein that in humans is encoded by the RPA2 gene.-Interactions:RPA2 has been shown to interact with Ku70, Replication protein A1, RPA3, DNA-PKcs, STAT3, Cyclin O, MEN1, TP53BP1 and Uracil-DNA glycosylase....

, E2F1
E2F1
Transcription factor E2F1 is a protein that in humans is encoded by the E2F1 gene.-Interactions:E2F1 has been shown to interact with NCOA6, Retinoblastoma-like protein 1, Retinoblastoma protein, GTF2H1, SKP2, PURA, NPDC1, Sp2 transcription factor, Sp1 transcription factor, CUL1, ARID3A, TOPBP1,...

, Ataxia telangiectasia mutated
Ataxia telangiectasia mutated
Ataxia telangiectasia mutated is a serine/threonine protein kinase that is recruited and activated by DNA double-strand breaks. It phosphorylates several key proteins that initiate activation of the DNA damage checkpoint, leading to cell cycle arrest, DNA repair or apoptosis...

, P53
P53
p53 , is a tumor suppressor protein that in humans is encoded by the TP53 gene. p53 is crucial in multicellular organisms, where it regulates the cell cycle and, thus, functions as a tumor suppressor that is involved in preventing cancer...

, PAXIP1
PAXIP1
PAX-interacting protein 1 is a protein that in humans is encoded by the PAXIP1 gene.-Interactions:PAXIP1 has been shown to interact with PAX2 and TP53BP1.-Further reading:...

, DYNLL1
DYNLL1
Dynein light chain 1, cytoplasmic is a protein that in humans is encoded by the DYNLL1 gene.-Interactions:DYNLL1 has been shown to interact with DLGAP1, MYO5A, DYNC1I1, BCL2L11, NRF1, IκBα, PAK1, DLG4 and TP53BP1.-Further reading:...

, H2AFX
H2AFX
H2AX is one of several genes coding for histone H2A. In humans and other eukaryotes, the DNA is wrapped around histone-groups, consisting of core histones H2A, H2B, H3 and H4. Thus, the H2AX contributes to the histone-formation and therefore the structure of DNA.H2AX becomes phosphorylated on...

 and Bloom syndrome protein
Bloom syndrome protein
Bloom syndrome protein is a protein that in humans is encoded by the BLM gene and is expressed in Bloom syndrome.The Bloom syndrome gene product is related to the RecQ subset of DExH box-containing DNA helicases and has both DNA-stimulated ATPase and ATP-dependent DNA helicase activities...

.

Further reading

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