Figure 2.
Vam2/6p is associated with the cis-SNARE complex. (A) Association of Vam2p with Vam3p. BJ3505 vacuoles were incubated in 10× scale fusion reactions at 27°C for 10 min with or without ATP. Lane 3 was supplemented with antibody to Sec18p. Vacuoles were solubilized in buffer containing 1% Triton X-100 as described in Materials and Methods, and proteins immunoprecipitated from the detergent extracts with antibody to Vam3p. Immunoprecipitates were analyzed by SDS-PAGE and immunoblotting with antisera to the indicated vacuolar proteins. (B) Vam2p is associated with Vti1p and Ytk6p. An immunoblot of vacuole protein immunoprecipitates from Ungermann et al. 1999 was probed with antibody to Vam2p.