Page last updated: 2024-08-07 18:31:05

DNA ligase 1

A DNA ligase 1 that is encoded in the genome of human. [PRO:DNx, UniProtKB:P18858]

Synonyms

EC 6.5.1.1;
DNA ligase I;
Polydeoxyribonucleotide synthase [ATP] 1

Research

Bioassay Publications (3)

TimeframeStudies on this Protein(%)All Drugs %
pre-19900 (0.00)18.7374
1990's0 (0.00)18.2507
2000's3 (100.00)29.6817
2010's0 (0.00)24.3611
2020's0 (0.00)2.80

Compounds (2)

Drugs with Inhibition Measurements

DrugTaxonomyMeasurementAverage (mM)Bioassay(s)Publication(s)
chloroquineHomo sapiens (human)IC50823.000024
ol-135Homo sapiens (human)IC500.600011
ol-135Homo sapiens (human)Ki0.004711

Enables

This protein enables 6 target(s):

TargetCategoryDefinition
DNA bindingmolecular functionAny molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid). [GOC:dph, GOC:jl, GOC:tb, GOC:vw]
DNA ligase activitymolecular functionCatalysis of the formation of a phosphodiester bond between the 3'-hydroxyl group at the end of one DNA chain and the 5'-phosphate group at the end of another. This reaction requires an energy source such as ATP or NAD+. [ISBN:0716720094]
protein bindingmolecular functionBinding to a protein. [GOC:go_curators]
ATP bindingmolecular functionBinding to ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator. [ISBN:0198506732]
metal ion bindingmolecular functionBinding to a metal ion. [GOC:ai]
DNA ligase (ATP) activitymolecular functionCatalysis of the reaction: ATP + deoxyribonucleotide(n) + deoxyribonucleotide(m) = AMP + diphosphate + deoxyribonucleotide(n+m). [EC:6.5.1.1]

Located In

This protein is located in 2 target(s):

TargetCategoryDefinition
nucleoplasmcellular componentThat part of the nuclear content other than the chromosomes or the nucleolus. [GOC:ma, ISBN:0124325653]
intracellular membrane-bounded organellecellular componentOrganized structure of distinctive morphology and function, bounded by a single or double lipid bilayer membrane and occurring within the cell. Includes the nucleus, mitochondria, plastids, vacuoles, and vesicles. Excludes the plasma membrane. [GOC:go_curators]

Active In

This protein is active in 2 target(s):

TargetCategoryDefinition
mitochondrioncellular componentA semiautonomous, self replicating organelle that occurs in varying numbers, shapes, and sizes in the cytoplasm of virtually all eukaryotic cells. It is notably the site of tissue respiration. [GOC:giardia, ISBN:0198506732]
nucleuscellular componentA membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent. [GOC:go_curators]

Involved In

This protein is involved in 10 target(s):

TargetCategoryDefinition
DNA ligationbiological processThe re-formation of a broken phosphodiester bond in the DNA backbone, carried out by DNA ligase. [ISBN:0815316194]
DNA repairbiological processThe process of restoring DNA after damage. Genomes are subject to damage by chemical and physical agents in the environment (e.g. UV and ionizing radiations, chemical mutagens, fungal and bacterial toxins, etc.) and by free radicals or alkylating agents endogenously generated in metabolism. DNA is also damaged because of errors during its replication. A variety of different DNA repair pathways have been reported that include direct reversal, base excision repair, nucleotide excision repair, photoreactivation, bypass, double-strand break repair pathway, and mismatch repair pathway. [PMID:11563486]
base-excision repairbiological processIn base excision repair, an altered base is removed by a DNA glycosylase enzyme, followed by excision of the resulting sugar phosphate. The small gap left in the DNA helix is filled in by the sequential action of DNA polymerase and DNA ligase. [ISBN:0815316194]
base-excision repair, gap-fillingbiological processRepair of the damaged strand by the combined action of an apurinic endouclease that degrades a few bases on the damaged strand and a polymerase that synthesizes a 'patch' in the 5' to 3' direction, using the undamaged strand as a template. [ISBN:1550091131]
mismatch repairbiological processA system for the correction of errors in which an incorrect base, which cannot form hydrogen bonds with the corresponding base in the parent strand, is incorporated into the daughter strand. The mismatch repair system promotes genomic fidelity by repairing base-base mismatches, insertion-deletion loops and heterologies generated during DNA replication and recombination. [ISBN:0198506732, PMID:11687886]
anatomical structure morphogenesisbiological processThe process in which anatomical structures are generated and organized. Morphogenesis pertains to the creation of form. [GOC:go_curators, ISBN:0521436125]
cell divisionbiological processThe process resulting in division and partitioning of components of a cell to form more cells; may or may not be accompanied by the physical separation of a cell into distinct, individually membrane-bounded daughter cells. [GOC:di, GOC:go_curators, GOC:pr]
DNA biosynthetic processbiological processThe biosynthetic process resulting in the formation of DNA. [GOC:mah]
Okazaki fragment processing involved in mitotic DNA replicationbiological processAny DNA replication, Okazaki fragment processing that is involved in mitotic cell cycle DNA replication. [GO_REF:0000060, GOC:mtg_cell_cycle, GOC:TermGenie, PMID:1234]
lagging strand elongationbiological processThe process in which an existing DNA strand is extended in a net 3' to 5' direction by activities including the addition of nucleotides to the 3' end of the strand, complementary to an existing template, as part of DNA replication. Lagging strand DNA elongation proceeds by discontinuous synthesis of short stretches of DNA, known as Okazaki fragments, from RNA primers; these fragments are then joined by DNA ligase. Although each segment of nascent DNA is synthesized in the 5' to 3' direction, the overall direction of lagging strand synthesis is 3' to 5', mirroring the progress of the replication fork. [GOC:mah, ISBN:071673706X, ISBN:0815316194]