STRINGSTRING
Pnkp protein (mouse) - STRING interaction network
"Pnkp" - Polynucleotide kinase 3'- phosphatase in Mus musculus
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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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PnkpPolynucleotide kinase 3’- phosphatase; Plays a key role in the repair of DNA damage, functioning as part of both the non-homologous end-joining (NHEJ) and base excision repair (BER) pathways. Through its two catalytic activities, PNK ensures that DNA termini are compatible with extension and ligation by either removing 3’-phosphates from, or by phosphorylating 5’-hydroxyl groups on, the ribose sugar of the DNA backbone (522 aa)    
Predicted Functional Partners:
Apex2
Apurinic/apyrimidinic endonuclease 2; Function as a weak apurinic/apyrimidinic (AP) endodeoxyribonuclease in the DNA base excision repair (BER) pathway of DNA lesions induced by oxidative and alkylating agents. Initiates repair of AP sites in DNA by catalyzing hydrolytic incision of the phosphodiester backbone immediately adjacent to the damage, generating a single-strand break with 5’-deoxyribose phosphate and 3’-hydroxyl ends. Displays also double-stranded DNA 3’-5’ exonuclease, 3’-phosphodiesterase activities. Shows robust 3’-5’ exonuclease activity on 3’-recessed heteroduplex DNA a [...] (516 aa)
   
 
  0.863
Xrcc1
X-ray repair complementing defective repair in Chinese hamster cells 1; Corrects defective DNA strand-break repair and sister chromatid exchange following treatment with ionizing radiation and alkylating agents (631 aa)
     
 
  0.819
Nthl1
Nth (endonuclease III)-like 1 (E.coli); Bifunctional DNA N-glycosylase with associated apurinic/apyrimidinic (AP) lyase function that catalyzes the first step in base excision repair (BER), the primary repair pathway for the repair of oxidative DNA damage. The DNA N-glycosylase activity releases the damaged DNA base from DNA by cleaving the N- glycosidic bond, leaving an AP site. The AP lyase activity cleaves the phosphodiester bond 3’ to the AP site by a beta-elimination. Primarily recognizes and repairs oxidative base damage of pyrimidines (300 aa)
       
 
  0.785
Apex1
Apurinic/apyrimidinic endonuclease 1; Multifunctional protein that plays a central role in the cellular response to oxidative stress. The two major activities of APEX1 in DNA repair and redox regulation of transcriptional factors. Functions as a apurinic/apyrimidinic (AP) endodeoxyribonuclease in the DNA base excision repair (BER) pathway of DNA lesions induced by oxidative and alkylating agents. Initiates repair of AP sites in DNA by catalyzing hydrolytic incision of the phosphodiester backbone immediately adjacent to the damage, generating a single-strand break with 5’-deoxyribose ph [...] (317 aa)
   
 
  0.782
Lig4
Ligase IV, DNA, ATP-dependent; Efficiently joins single-strand breaks in a double- stranded polydeoxynucleotide in an ATP-dependent reaction. Involved in DNA nonhomologous end joining (NHEJ) required for double-strand break repair and V(D)J recombination. The LIG4-XRCC4 complex is responsible for the NHEJ ligation step, and XRCC4 enhances the joining activity of LIG4. Binding of the LIG4-XRCC4 complex to DNA ends is dependent on the assembly of the DNA- dependent protein kinase complex DNA-PK to these DNA ends (By similarity) (911 aa)
     
  0.777
Tdp1
tyrosyl-DNA phosphodiesterase 1; DNA repair enzyme that can remove a variety of covalent adducts from DNA through hydrolysis of a 3’-phosphodiester bond, giving rise to DNA with a free 3’ phosphate. Catalyzes the hydrolysis of dead-end complexes between DNA and the topoisomerase I active site tyrosine residue. Hydrolyzes 3’-phosphoglycolates on protruding 3’ ends on DNA double-strand breaks due to DNA damage by radiation and free radicals. Acts on blunt-ended double-strand DNA breaks and on single-stranded DNA. Has low 3’exonuclease activity and can remove a single nucleoside from the [...] (609 aa)
     
 
  0.774
Xrcc6
X-ray repair complementing defective repair in Chinese hamster cells 6; Single-stranded DNA-dependent ATP-dependent helicase. Has a role in chromosome translocation. The DNA helicase II complex binds preferentially to fork-like ends of double-stranded DNA in a cell cycle-dependent manner. It works in the 3’-5’ direction. Binding to DNA may be mediated by XRCC6. Involved in DNA non-homologous end joining (NHEJ) required for double-strand break repair and V(D)J recombination. The XRCC5/6 dimer acts as regulatory subunit of the DNA-dependent protein kinase complex DNA-PK by increasing the [...] (608 aa)
     
  0.768
Xrcc4
X-ray repair complementing defective repair in Chinese hamster cells 4; Involved in DNA nonhomologous end joining (NHEJ) required for double-strand break repair and V(D)J recombination. Binds to DNA and to DNA ligase IV (LIG4). The LIG4-XRCC4 complex is responsible for the NHEJ ligation step, and XRCC4 enhances the joining activity of LIG4. Binding of the LIG4-XRCC4 complex to DNA ends is dependent on the assembly of the DNA-dependent protein kinase complex DNA-PK to these DNA ends (By similarity) (326 aa)
       
  0.759
Polm
Polymerase (DNA directed), mu; Gap-filling polymerase involved in repair of DNA double- strand breaks by non-homologous end joining (NHEJ). Participates in immunoglobulin (Ig) light chain gene rearrangement in V(D)J recombination (496 aa)
     
  0.743
Xrcc5
X-ray repair complementing defective repair in Chinese hamster cells 5; Single-stranded DNA-dependent ATP-dependent helicase. Has a role in chromosome translocation. The DNA helicase II complex binds preferentially to fork-like ends of double-stranded DNA in a cell cycle-dependent manner. It works in the 3’-5’ direction. Binding to DNA may be mediated by XRCC6. Involved in DNA non-homologous end joining (NHEJ) required for double-strand break repair and V(D)J recombination. The XRCC5/6 dimer acts as regulatory subunit of the DNA-dependent protein kinase complex DNA-PK by increasing the [...] (732 aa)
     
  0.729
Your Current Organism:
Mus musculus
NCBI taxonomy Id: 10090
Other names: LK3 transgenic mice, M. musculus, Mus, Mus muscaris, Mus musculus, Mus sp. 129SV, house mouse, mice, mouse, nude mice, transgenic mice
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