This spin-on external oil filter fits the Leybold Sogevac SV40, SV65 and SV585 Style II SogeVac vacuum pump. The Leybold part number for this extrenal spin-on oil filter is PN . 1 oil filter required.

How these hexameric helicases interact with their origin dsDNA remains unknown. Here, we report the co-crystal structure of the SV40 Large-T Antigen (LT) hexameric helicase bound to its origin dsDNA.