HIPHOP chemogenomics database
YBR086C / IST2 
Cortical ER protein involved in ER-plasma membrane tethering; one of 6 proteins (Ist2p, Scs2p, Scs22p, Tcb1p, Tcb2p, Tcb3p) that connect ER to the plasma membrane (PM) and regulate PM phosphatidylinositol-4-phosphate (PI4P) levels by controlling access of Sac1p phosphatase to its substrate PI4P in the PM; localizes to the mother cell in small-budded cells and to the bud in medium- and large-budded cells; mRNA is transported to the bud tip by an actomyosin-driven process
Zygosity: Homozygous strain
fixedexpanded
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Top fitness defect scores for YBR086C deletion by condition
Download Fitness data (tab-delimited text) (excel) |
Cofit Genes
Download Cofitness data (tab-delimited text) (excel)| Correlation | pval | ORF | Gene | Zygosity | Description |
|---|---|---|---|---|---|
| 0.140 | 3.14E-16 | YPL120W | VPS30 | hom | Subunit of phosphatidylinositol (PtdIns) 3-kinase complexes I and II; Complex I is essential in autophagy and Complex II is required for vacuolar protein sorting; required for overflow degradation of misfolded proteins when ERAD is saturated; ortholog of the higher eukaryotic gene Beclin 1 |
| 0.138 | 1.04E-15 | YJL024C | APS3 | hom | Small subunit of the clathrin-associated adaptor complex AP-3; involved in vacuolar protein sorting; related to the sigma subunit of the mammalian clathrin AP-3 complex; suppressor of loss of casein kinase 1 function; protein abundance increases in response to DNA replication stress |
| 0.131 | 2.65E-14 | YOR007C | SGT2 | hom | Glutamine-rich cytoplasmic cochaperone; serves as a scaffold bringing together Get4, Get5p, and other TRC complex members that are required to mediate posttranslational insertion of tail-anchored proteins into the ER membrane; interacts with the prion domain of Sup35p; amyloid sensor; plays a role in targeting chaperones to prion aggregates; has similarity to human cochaperone SGT; forms cytoplasmic foci upon DNA replication stress |
| 0.122 | 1.37E-12 | YLR087C | CSF1 | hom | Protein required for fermentation at low temperature; the authentic, non-tagged protein is detected in highly purified mitochondria in high-throughput studies |
| 0.122 | 1.44E-12 | YOR024W_d | YOR024W_d | hom | Dubious open reading frame unlikely to encode a protein, based on available experimental and comparative sequence data |
| 0.116 | 1.49E-11 | YJR033C | RAV1 | hom | Subunit of the RAVE complex (Rav1p, Rav2p, Skp1p), which promotes assembly of the V-ATPase holoenzyme; required for transport between the early and late endosome/PVC and for localization of TGN membrane proteins; potential Cdc28p substrate |
| 0.116 | 1.73E-11 | YGR261C | APL6 | hom | Beta3-like subunit of the yeast AP-3 complex; functions in transport of alkaline phosphatase to the vacuole via the alternate pathway; exists in both cytosolic and peripherally associated membrane-bound pools |
| 0.112 | 7.50E-11 | YDL100C | GET3 | hom | Guanine nucleotide exchange factor for Gpa1p; amplifies G protein signaling; subunit of the GET complex, which is involved in Golgi to ER trafficking and insertion of proteins into the ER membrane; has low-level ATPase activity; protein abundance increases in response to DNA replication stress |
| 0.108 | 3.36E-10 | YNL190W_p | YNL190W_p | hom | Hydrophilin essential in dessication-rehydration process; cell wall protein; contains a putative GPI-attachment site |
| 0.107 | 4.71E-10 | YEL062W | NPR2 | hom | Subunit of SEA (Seh1-associated), Npr2/3, and Iml1p complexes; Npr2/3 complex mediates downregulation of TORC1 activity upon amino acid limitation; SEA complex is a coatomer-related complex that associates dynamically with the vacuole; Iml1p complex (Iml1p-Npr2p-Npr3p) is required for non-nitrogen-starvation (NNS)-induced autophagy; Iml1p interacts primarily with phosphorylated Npr2p; homolog of human NPRL2; target of Grr1p; required for growth on urea and proline |
| 0.107 | 5.25E-10 | YLL011W | SOF1 | het | Essential protein required for biogenesis of 40S (small) ribosomal subunit; has similarity to the beta subunit of trimeric G-proteins and the splicing factor Prp4p |
| 0.105 | 1.02E-9 | YBR288C | APM3 | hom | Mu3-like subunit of the clathrin associated protein complex (AP-3); functions in transport of alkaline phosphatase to the vacuole via the alternate pathway |
| 0.102 | 3.45E-9 | YOR215C | AIM41 | hom | Putative protein of unknown function; the authentic protein is detected in highly purified mitochondria in high-throughput studies; null mutant displays reduced frequency of mitochondrial genome loss |
| 0.101 | 4.13E-9 | YHL023C | NPR3 | hom | Subunit of SEA (Seh1-associated), Npr2/3, and Iml1p complexes; Npr2/3 complex mediates downregulation of TORC1 activity upon amino acid limitation; SEA complex is a coatomer-related complex that associates dynamically with the vacuole; Iml1p complex (Iml1p-Npr2p-Npr3p) is required for non-nitrogen-starvation (NNS)-induced autophagy; required for Npr2p phosphorylation and Iml1p-Npr2p interaction; null mutant shows delayed meiotic DNA replication and double-strand break repair |
| 0.098 | 1.16E-8 | YHL002W | HSE1 | hom | Subunit of the endosomal Vps27p-Hse1p complex required for sorting of ubiquitinated membrane proteins into intralumenal vesicles prior to vacuolar degradation, as well as for recycling of Golgi proteins and formation of lumenal membranes |