| Gene Name | ORF Name | Function GO Term | Process GO Term | Component GO Term | Interacting Genes | Description | Gene Product | Phenotype |
| AXL1 | YPR122W | metalloendopeptidase activity | bud site selection* | integral to membrane* | YKL011C YPR111W | determinant in axial budding pattern of haploid cells, involved in processing of a-factor | human insulin-degrading endoprotease homolog (putative) | Null mutant is viable; exhibits reduced a-factor expresion; haploid mutants show bipolar budding pat |
| AXL2 | YIL140W | molecular_function unknown | bud site selection* | bud neck* | | involved in polarity establishment/cellular polarization during budding | | AXL2 can serve as a multicopy suppressor of rho3 and is required for the haploid axial budding patte |
| AYR1 | YIL124W | acylglycerone-phosphate reductase activity | phosphatidic acid biosynthesis | cytoplasm* | YLR295C YLR447C YGL137W YBR017C | Subcellular location of Ayr1p: lipid particles and endoplasmic reticulum of the yeast | 1-acyl dihydroxyacetone phosphate reductase | Null mutant is viable. ybr159w/ayr1 double mutant is inviable. |
| BNI4 | YNL233W | protein binding | cytokinesis | contractile ring (sensu Saccharomyces) | YPL066W YDR388W YNL271C YJL095W YBL061C YLR337C YJR118C YDR162C YGR229C YNR051C YBR260C YCR009C YLR342W YDL117W YCR002C YBL047C YKL032C YLL021W YML115C YBR234C YDL029W YER133W YGR014W YDL225W YKL079W YHR030C YOR326W | bud neck involved | required to link Chs3p and Chs4p to the septins | Null mutant is viable, shows delocalized chitin, elongated buds, enlarged bud necks |
| BNI5 | YNL166C | molecular_function unknown | cytokinesis* | bud neck* | YDR136C YDR368W YGR078C YNL153C YML094W | bud neck involved; localizes to mother-bud neck in a septin-dependent manner; bni5 shows synthetic e | | Null: Null mutant is viable, interacts genetically with CDC3, CDC10, CDC11, and CDC12 (septin) genes |
| BUD13 | YGL174W | molecular_function unknown | bud site selection | nucleus | YGL216W YMR012W YIR005W YLR016C YLR418C YLR085C | | | Null mutant is viable; diploid null mutants exhibit unipolar budding and elongate phenotype. |
| BUD16 | YEL029C | molecular_function unknown | bud site selection | cytoplasm | | | | Null mutant is viable; random budding in diploid null mutants. |
| BUD17 | YNR027W | molecular_function unknown | bud site selection | cellular_component unknown | | | | Null mutant is viable; random budding in diploid null mutants. |
| BUD19 | YJL188C | molecular_function unknown | bud site selection | cellular_component unknown | YMR307W YGR229C | | | Null mutant is viable; random budding in diploid null mutants. |
| BUD20 | YLR074C | molecular_function unknown | bud site selection | nucleus | YCR072C YJL122W YBL044W YGL068W YFL006W YIR003W YLL050C YMR303C YPR016C YLR196W YPL093W YHR052W YHR179W YDR155C YKL085W YNR053C YJR144W YGL120C YIL070C YNL182C YBL002W YER126C YDL051W YKL009W YNL002C YGR245C YDR101C YER006W YGR103W YHR085W YHR197W YK | | | Null mutant is viable; random budding in diploid null mutants |
| BUD22 | YMR014W | molecular_function unknown | bud site selection | nucleus | YOR264W | | | Null mutant is viable; random budding in diploid null mutants |
| BUD23 | YCR047C | S-adenosylmethionine-dependent methyltransferase activity | bud site selection | cellular_component unknown | YNL282W YLR339C | | | Null mutant is viable; random budding in diploid null mutants |
| BUD25 | YER014C-A | molecular_function unknown | bud site selection | cellular_component unknown | YKL190W YHR181W | involved in bipolar budding | | Null mutant is viable; random budding in diploid null mutants |
| BUD26 | YDR241W | molecular_function unknown | bud site selection | cellular_component unknown | | | | Null mutant is viable; random budding in diploid null mutants |
| BUD27 | YFL023W | molecular_function unknown | bud site selection | cellular_component unknown | YLR243W YLR200W YER133W YCL017C YBR154C YKL113C | Function required for yeast viability on toxin exposure | | Null mutant is viable but exhibits K1 killer toxin hypersensitivity; Diploid null mutants exhibit ra |
| BUD28 | YLR062C | molecular_function unknown | bud site selection | cellular_component unknown | | | | Diploid null mutants exhibit random budding |
| BUD3 | YCL014W | molecular_function unknown | cytokinesis* | contractile ring (sensu Saccharomyces) | YIL104C YJR092W YBL038W YGR220C YJR091C YPR086W YHR197W | cell cycle regulated protein required for axial bud formation; co-assembles with Bud4p at bud sites | | Null mutant is viable; bipolar budding pattern in all cell types |
| BUD30 | YDL151C | molecular_function unknown | bud site selection | cellular_component unknown | YLR103C YDL017W | Function required for yeast viability on toxin exposure; random budding in diploid null mutants | | K1 killer toxin hypersensitivity |
| BUD31 | YCR063W | molecular_function unknown | bud site selection | cellular_component unknown | YMR213W YHR165C YDR408C | | | Diploid mutants exhibit random budding |
| BUD4 | YJR092W | GTP binding | bud site selection* | contractile ring (sensu Saccharomyces) | YCL014W | co-assembles with Bud3p at bud sites | | Null mutant is viable, haploids have dipolar budding, normally they have axial budding, no effects o |
| BUD7 | YOR299W | molecular_function unknown | bud site selection | cellular_component unknown | YGR294W YJR116W YKR070W YLR108C YMR293C YNL308C YOL064C YGL095C YHL007C YDL108W YGR236C YML041C YNL246W YNR069C YOL156W YOR037W YOR047C YOR049C YKL082C YPR054W | bud site selection | | Diploid-specific heterogenous bud site selection |
| BUD9 | YGR041W | molecular_function unknown | bud site selection | bud neck | YPL251W YGR041W YDR316W | among a group of genes whose products are necessary for bud-site selection; likely involvement in po | | In null mutants bipolar-budding cells bud preferentially at distal pole |
| CYK3 | YDL117W | molecular_function unknown | cytokinesis | cellular_component unknown | YER177W YNL271C YER016W YDL225W YNL233W YHR142W YCR009C YDR388W | involved in CYtoKinesis | | Null mutant is viable, exhibits slow growth, mild cytokinesis defects, and aberrant mother-bud neck |
| EGT2 | YNL327W | cellulase activity | cytokinesis | cell wall (sensu Fungi) | YLL039C | cell-cycle regulation protein, may be involved in the correct timing of cell separation after cytoki | | |
| HOF1 | YMR032W | cytoskeletal protein binding | cytokinesis | contractile ring (sensu Saccharomyces) | YDR203W YNL271C YLR423C YBR260C YER144C YGR250C YJL039C YJR090C YNL152W YOR324C YPL059W YIL159W YCR054C YOR098C | SH3 domain containing-protein required for cytokinesis | | Null mutant is defective in cytokinesis |
| PIK1 | YNL267W | 1-phosphatidylinositol 4-kinase activity | cytokinesis* | nucleus* | YDR099W | catalyzes first step in the biosynthesis of phosphatidylinositol-4,5-biphosphate; may control cytoki | phosphatidylinositol 4-kinase | Null mutant is inviable; overexpression of PIK1 enhances response to mating pheromone; temperature-s |
| RAX1 | YOR301W | molecular_function unknown | bud site selection | cellular_component unknown | YGR259C | A rax1 mutation converts the budding pattern of an axl1 null mutant from bipolar to axial. | | |
| RAX2 | YLR084C | molecular_function unknown | bud site selection | membrane* | | Involved in the maintenance of bipolar pattern | | Null mutant is defective in bipolar pattern |
| SEC4 | YFL005W | RAB small monomeric GTPase activity | cytokinesis* | actin cap (sensu Saccharomyces)* | YOR326W YPR017C YKL079W YLR166C YER136W YFL038C YKR068C YNL272C | Secretory vesicle associated Rab GTPase that binds to Sec15p and is essential for exocytosis | ras homolog|small GTP binding protein | null is inviable; conditional mutants show defects in secretion and accumulation of post-Golgi vesic |
| THP1 | YOL072W | protein binding | bud site selection* | nuclear pore* | YJR091C YLR418C | | | Null mutant is viable and shows transcription-associated hyper-recombination and transcription elong |