Contribution to PERS after taxes

I contributed to Nevada PERS (Public Employees Retirement System) 50/50 with my employer. It shows on W-2 in the box "14 Other" as EEPERSPART. Where do I enter it on the return as the deduction? I did try to enter it in the Retirement Savings Contribution Credit, but it would not go to update when I click on it. I contributed $7,000 after taxes.