Skip to main content
. 2021 Jun 23;12:3883. doi: 10.1038/s41467-021-24199-1

Fig. 6. The Cdc6 WHD undergoes multiple conformational changes from ORC–Cdc6 to OCCM during the loading of the Mcm2-7 hexamer.

Fig. 6

a Conformational changes of the Cdc6 WHD during the loading of Mcm2-7 from ORC–Cdc6 to semi-attached OCCM to pre-insertion OCCM and to the DNA-inserted OCCM. The dashed black circle in the last panel encircles the Cdc6 WHD binding region; this region is enlarged in panels (bd) and shown in different views. b, c The Cdc6 WHD rotates (b) and shifts (c) relative to the Orc1 AAA+ domain. d The repositioned Cdc6 WHD in OCCM inserts Lys-479 and Lys-483 into the now straightened ACS DNA groove. In panels (bd), the Cdc6 WHD is shown as solid purple in the ORC–Cdc6 and as transparent purple in the OCCM structure.