CaLC3391: To C terminally TAP tag Swi4, the TAP-ARG4 cassette was PCR amplified from pLC57362 using primers oLC3424 in combination with oLC3425 and transformed into CaLC239. Transformants prototrophic for arginine were PCR tested with oLC3426 in combination with oLC1593 and oLC1594 in combination with oLC3427.