Reactome: A Curated Pathway Database

S Phase (R-HSA-69242)

Species Homo sapiens


DNA synthesis occurs in the S phase, or the synthesis phase, of the cell cycle. The cell duplicates its hereditary material, and two copies of the chromosome are formed. As DNA replication continues, the E type cyclins shared by the G1 and S phases, are destroyed and the levels of the mitotic cyclins rise.

Locations in the PathwayBrowser
Additional Information
GO Biological Process mitotic S phase (0000084)