| 4932 |
YAL011W |
Protein of unknown function, component of the SWR1 complex, which exchanges histone variant H2AZ (Htz1p) for chromatin-bound histone H2A; required for formation of nuclear-associated array of smooth endoplasmic reticulum known as karmellae |
|
SWC3 |
| 4932 |
YCL029C |
Microtubule-associated protein, component of the interface between microtubules and kinetochore, involved in sister chromatid separation; essential in polyploid cells but not in haploid or diploid cells; ortholog of mammalian CLIP-170 |
Null mutant is viable, bik1 mutants exhibit bilateral defects in karyogamy |
BIK1 |
| 4932 |
YDR485C |
Htz1p-binding component of the SWR1 complex, which exchanges histone variant H2AZ (Htz1p) for chromatin-bound histone H2A; required for vacuolar protein sorting |
Null mutant secretes CPY. |
VPS72 |
| 4932 |
YEL061C |
Kinesin motor protein involved in mitotic spindle assembly and chromosome segregation |
Null mutant is viable; cin8 dyn1 and cin8 kip1 double deletion mutants are inviable |
CIN8 |
| 4932 |
YER007W |
Microtubule effector required for tubulin heterodimer formation, binds alpha-tubulin, required for normal microtubule function, null mutant exhibits cold-sensitive microtubules and sensitivity to benomyl |
|
PAC2 |
| 4932 |
YER016W |
Microtubule-binding protein that together with Kar9p makes up the cortical microtubule capture site and delays the exit from mitosis when the spindle is oriented abnormally |
Null mutant is viable, causes cold sensitivity, benomyl supersensitivity, aberrant microtubule morphology. During mitosis in bim1 mutants, the nucleus fails to move to the mother-bud neck. |
BIM1 |
| 4932 |
YGL086W |
Coiled-coil protein involved in the spindle-assembly checkpoint; phosphorylated by Mps1p upon checkpoint activation which leads to inhibition of the activity of the anaphase promoting complex; forms a complex with Mad2p |
|
MAD1 |
| 4932 |
YHR129C |
Actin-related protein of the dynactin complex; required for spindle orientation and nuclear migration; putative ortholog of mammalian centractin |
Null mutant is viable, but both null mutations and overexpression lead to defects in spindle orientation and nuclear migration (during mitosis in arp1 mutants the nucleus fails to move into the neck). |
ARP1 |
| 4932 |
YJL030W |
Component of the spindle-assembly checkpoint complex, which delays the onset of anaphase in cells with defects in mitotic spindle assembly; forms a complex with Mad1p |
|
MAD2 |
| 4932 |
YLR085C |
Actin-related protein that binds nucleosomes; a component of the SWR1 complex, which exchanges histone variant H2AZ (Htz1p) for chromatin-bound histone H2A |
|
ARP6 |
| 4932 |
YML094W |
Subunit of the heterohexameric cochaperone prefoldin complex which binds specifically to cytosolic chaperonin and transfers target proteins to it |
Null mutant is viable, cold sensitive, benomyl and nocadazole sensitive and fails to grow on YPD+1.2M KCl or YPD+1.8M sorbitol; synthetically lethal with tub4-1 mutations |
GIM5 |
| 4932 |
YML124C |
Alpha-tubulin; associates with beta-tubulin (Tub2p) to form tubulin dimer, which polymerizes to form microtubules; expressed at lower level than Tub1p |
Null mutant is viable, hypersensitive to benomyl, exhibits poor spore viability |
TUB3 |
| 4932 |
YMR078C |
Subunit of a complex with Ctf8p that shares some subunits with Replication Factor C and is required for sister chromatid cohesion; may have overlapping functions with Rad24p in the DNA damage replication checkpoint |
Null mutant is viable, exhibits increased level of spontaneous mitotic recombination, slow growth, and cold sensitivity |
CTF18 |
| 4932 |
YMR138W |
GTP-binding protein involved in beta-tubulin (Tub2p) folding; isolated as mutant with increased chromosome loss and sensitivity to benomyl |
Null mutant is viable; supersensitivity to benomyl and nocodozole |
CIN4 |
| 4932 |
YMR294W |
Component of the yeast dynactin complex, consisting of Nip100p, Jnm1p, and Arp1p; required for proper nuclear migration and spindle partitioning during mitotic anaphase B |
|
JNM1 |
| 4932 |
YOL012C |
Histone variant H2AZ, exchanged for histone H2A in nucleosomes by the SWR1 complex; involved in transcriptional regulation through prevention of the spread of silent heterochromatin |
Null mutant is viable at 28C; high copy suppressor of histone H4 point mutant affecting nucleosome structure |
HTZ1 |
| 4932 |
YOR026W |
Kinetochore checkpoint WD40 repeat protein that localizes to kinetochores during prophase and metaphase, delays anaphase in the presence of unattached kinetochores; forms complexes with Mad1p-Bub1p and with Cdc20p, binds Mad2p and Mad3p |
|
BUB3 |
| 4932 |
YOR058C |
Mitotic spindle midzone localized microtubule-associated protein (MAP) family member; required for spindle elongation and stabilization; undergoes cell cycle-regulated degradation by anaphase promoting complex; potential Cdc28p substrate |
Null mutant is viable but temperature sensitive. |
ASE1 |
| 4932 |
YOR265W |
Protein involved in microtubule morphogenesis, required for protection from excess free beta-tubulin; proposed to be involved the folding of beta-tubulin; similar to mouse beta-tubulin cofactor A |
Overexpression rescues lethality caused by excess beta-tubulin |
RBL2 |
| 4932 |
YOR349W |
Tubulin folding factor D involved in beta-tubulin (Tub2p) folding; isolated as mutant with increased chromosome loss and sensitivity to benomyl |
Null mutant is viable, exhibits cold sensitivity for viability; defect in nuclear migration and nuclear fusion, supersensitivity to benomyl and nocodozole |
CIN1 |
| 4932 |
YPL155C |
Kinesin-related motor protein involved in mitotic spindle positioning, stabilizes microtubules by targeting Bik1p to the plus end; Kip2p levels are controlled during the cell cycle |
|
KIP2 |
| 4932 |
YPL174C |
Large subunit of the dynactin complex, which is involved in partitioning the mitotic spindle between mother and daughter cells; putative ortholog of mammalian p150(glued) |
Null mutant is viable but exhibits slow growth and defects in partitioning into daughter cells. |
NIP100 |
| 4932 |
YPL241C |
Tubulin folding factor C (putative) involved in beta-tubulin (Tub2p) folding; isolated as mutant with increased chromosome loss and sensitivity to benomyl |
Null mutant is viable but shows supersensitivity to benomyl and nocodazole, cold sensitivity, defects in karyogamy, and increased rates of chromosome loss; shows genetic interaction with tubulin mutations |
CIN2 |
| 4932 |
YPL269W |
Karyogamy protein required for correct positioning of the mitotic spindle and for orienting cytoplasmic microtubules, localizes at the shmoo tip in mating cells and at the tip of the growing bud in small-budded cells through anaphase |
Null mutant is viable; cytoplasmic microtubule orientation defects, nuclear migration defects, benomyl sensitive |
KAR9 |
| 4932 |
YPR135W |
Chromatin-associated protein, required for sister chromatid cohesion; interacts with DNA polymerase alpha (Pol1p) and may link DNA synthesis to sister chromatid cohesion |
Null mutant is viable but shows increase in the rate of mitotic chromosome loss, increased mitotic recombination, shift toward cells with G2 DNA content, and large budded cells with the nucleus in the bud neck; shows synthetic interactions with rad52, pol1, rad9, and esr1 |
CTF4 |
