Updates on the neutron $F_2$ extraction with CJ15 PDFs*

The CJ (CTEQ-Jefferson Lab) Collaboration provides a global fit of parton distribution functions (PDFs) with a special emphasis on the large x region with deuteron nuclear corrections at the parton level. By applying the same nuclear corrections on the world DIS $F_2$ datasets, we performed a data-driven extraction of neutron $F_2$. That dataset has been used for applications such as neutron excess corrections on experimental data and moments calculations. In this work we present an updated $F_2^n$ datasets with detailed uncertainty analysis. Within the same framework, we also provide the neutral-current and charged-current structure functions of proton, deuteron, and neutron that are calculated from PDFs.