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Tbio
LIG3
DNA ligase 3

Protein Summary
Description
Isoform 3 functions as heterodimer with DNA-repair protein XRCC1 in the nucleus and can correct defective DNA strand-break repair and sister chromatid exchange following treatment with ionizing radiation and alkylating agents. Isoform 1 is targeted to mitochondria, where it functions as DNA ligase in mitochondrial base-excision DNA repair (PubMed:10207110, PubMed:24674627). This gene is a member of the DNA ligase family. Each member of this family encodes a protein that catalyzes the joining of DNA ends but they each have a distinct role in DNA metabolism. The protein encoded by this gene is involved in excision repair and is located in both the mitochondria and nucleus, with translation initiation from the upstream start codon allowing for transport to the mitochondria and translation initiation from a downstream start codon allowing for transport to the nucleus. Additionally, alternate transcriptional splice variants, encoding different isoforms, have been characterized. [provided by ...more
Uniprot Accession IDs
Gene Name
Ensembl ID
  • ENST00000262327
  • ENSP00000262327
  • ENSG00000005156
  • ENST00000378526
  • ENSP00000367787

Symbol
  • LIG2
  • LIG3alpha
Illumination Graph
Knowledge Table
Most Knowledge About
Knowledge Value (0 to 1 scale)
drug perturbation
0.99
protein domain
0.97
molecular function
0.96
transcription factor perturbation
0.94
kinase perturbation
0.93


IDG Development Level Summary
Tdark

These are targets about which virtually nothing is known. They do not have known drug or small molecule activities
- AND - satisfy two or more of the following criteria:

Pubmed score: 98.81   (req: < 5)
Gene RIFs: 36   (req: <= 3)
Antibodies: 313   (req: <= 50)
Tbio

These targets do not have known drug or small molecule activities
- AND - satisfy two or more of the following criteria:

Pubmed score: 98.81   (req: >= 5)
Gene RIFs: 36   (req: > 3)
Antibodies: 313   (req: > 50)

- OR - satisfy the following criterion:

Gene Ontology Terms: 19
Tchem

Target has at least one ChEMBL compound with an activity cutoff of < 30 nM - AND - satisfies the preceding conditions

Active Ligand: 0
Tclin

Target has at least one approved drug - AND - satisfies the preceding conditions

Active Drug: 0