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ligase

[lahy-geys, -geyz]
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noun Biochemistry.
  1. any of a class of enzymes that catalyze the joining of two molecules by formation of a covalent bond accompanied by the hydrolysis of ATP.

Origin of ligase

1961; < Latin lig(āre) to tie, bind + -ase
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for ligase

ligase

noun
  1. any of a class of enzymes that catalyse the formation of covalent bonds and are important in the synthesis and repair of biological molecules, such as DNA
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

ligase in Medicine

acetate-CoA ligase

n.
  1. acetyl-CoA synthetase