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DNA ligase I is associated with the 21 S complex of enzymes for DNA synthesis in HeLa cells
1Worcester Foundation for Experimental Biology, Shrewsbury, MA 01545.
Nucleic Acids Research
|February 25, 1994
Abstract:
Approximately 80% of the DNA ligase activity in HeLa cell extracts is associated with the 21 S enzyme complex that functions in simian virus 40 DNA replication in vitro (Malkas et al., Biochemistry 29, 6362-6374., 1990). The DNA ligase associated with the 21 S complex was purified extensively and its physical, enzymic and immunological properties characterized as DNA ligase I. The association of DNA ligase I with the 21 S complex of enzymes for DNA synthesis provides evidence for the physiological function of this DNA ligase in DNA replication in human cells.