ligase

Bond-forming enzyme

Ligase is an enzyme that catalyzes the joining of two molecules, typically by forming a new chemical bond.

In molecular biology, DNA ligase is essential for replication and repair, sealing breaks in the DNA backbone: The ligase joins the Okazaki fragments together.

Ligases are fundamental tools in genetic engineering for splicing DNA sequences.

DNArepair

double-strand break

Complete DNA backbone cleavage

sealing · joining

molecularbiology

cloning

Making identical copies

DNA manipulation · circularization

biochemistry

biotin

B7, a metabolic cofactor

catalysis

condensation

Vapor turning to liquid

Opposites
enzymatic action

ligasenuclease

DNA-cleaving enzyme

hydrolase · protease · peptidase · lipase · phosphatase

Phrases
Family

ligament, ligature, ligation, ligate, ligated, ligating

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