401k equivalent in Canada and taxes


Hi Everyone,

What are the payroll deductions in Canada, (I know taxes varies based on the provenience) . But in general what are the tax deductions, I have seen

Canada Pension Plan (CPP) deductions1
Total tax on salary or pension income

sections on on-line payroll calculators (https://easytaxca.com/payroll-calculator-2017/). What are the components of 401k out of these two.

Are there any tax deductions such as home loan interest or something else can be for tax deductions?