This article contains the following supporting material:
Supplement Figure S2: Truncated Mob1p localizes to the anaphase spindle. Asynchronously growing haploid GFPMob1Δ132 Nic96-RFP cells (FLY2055) were analyzed by fluorescence microscopy. Mob1p was detectable on an axial structure that is distinct from the nucleoplasmic bridge within anaphase cells.
Supplement Figure S3: Mob1Δ78 colocalizes with kinetochore proteins. Asynchronously growing cells expressing truncated Mob1Δ78-YFP and Slk19p-CFP (FLY2076) were analyzed by fluorescence microscopy. Mob1Δ78-YFP shows a partial co-localization with Slk19p-CFP during anaphase (see arrowheads).
Supplement Figure S4: The chromosome passenger proteins, Ipl1p, Sli15p and Bir1p are not maintained on spindle midzones in mob1-77 cells. mob1-77 cells were blocked and released in metaphase using NDZ, as described in the text. Upon release from NDZ, the percentage of cells that lacked Ipl1p-GFP, Bir1p-GFP and Sli15p-GFP on the spindle midzone were scored over time (minutes). T=0 corresponds to the time when cell were released from the metaphase block.
Supplement Figure S5: Truncated Mob1p localizes to nuclei independently of Ipl1p and Mps1p. A) Localization of GFP-Mob1Δ78 and GFP-Mob1Δ132 in conditional ipl1-321 cells. Asynchronously growing cells were shifted to restrictive temperature (37°C) for 2-3 hours. Truncated GFP-Mob1 was expressed in ipl1-321 (SBY322) via low copy plasmids (pRS314-GFP-Mob1Δ78, pRS314-GFP-Mob1Δ132). B) GFP-Mob1Δ78 localizes to nuclei and SPBs (arrowheads) conditional mps1-1 cells. Asynchronously growing cells (were synchronized in G1 and released to restrictive temperature (37°C) for 2-3 hours. GFP-Mob1Δ78 was expressed in mps1-1 cells (FLY060) via low copy plasmids (pRS314-GFP-Mob1Δ78). Similar results were obtained for GFP-Mob1Δ132 (data not shown)