I get the following error message when entering this formula...

"You've entered too many arguments for this function."

I need the entire formula.

=IF(AND(I3=3),6,IF(AND(I3=5),1),IF(AND(I3=7),4),IF (AND(I3="A"),7),IF(AND(I3="C"),0),IF(AND(I3="G"),3 ),IF(AND(I3="K"),8)+,F(AND(I3="R"),5),IF(AND(I3="T "),9),IF(AND(I3="X"),2,""))

Help!

Pete