Permission Restrictions Table

I was looking for the table, System or otherwise, that houses permission res
trictions.
The table, if any, that houses user_id, table, restricted column, and type o
f restriction.
In other words, is there a table (system or otherwise) that has records adde
d to it related to new permission restrictions that were just set?
I found the sysusers table, but it does not have fields for the noted re
strictions. I guess this info is hidden
somewhere?
Thanks for any help.See syspermissions.