Component of a heterodimeric Poc4p-Irc25p chaperone involved in assembly of alpha subunits into the 20S proteasome; may regulate formation of proteasome isoforms with alternative subunits under different conditions
Zygosity: Homozygous strain
fixedexpanded
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Top fitness defect scores for YLR021W deletion by condition
Download Fitness data (tab-delimited text) (excel) |
Correlation | pval | ORF | Gene | Zygosity | Description |
---|---|---|---|---|---|
0.394 | 1.32E-124 | YMR314W | PRE5 | het | Alpha 6 subunit of the 20S proteasome; protein abundance increases in response to DNA replication stress |
0.379 | 1.02E-114 | YFR050C | PRE4 | het | Beta 7 subunit of the 20S proteasome |
0.370 | 4.89E-109 | YER094C | PUP3 | het | Beta 3 subunit of the 20S proteasome involved in ubiquitin-dependent catabolism; human homolog is subunit C10 |
0.359 | 1.76E-102 | YOL038W | PRE6 | het | Alpha 4 subunit of the 20S proteasome; may replace alpha 3 subunit (Pre9p) under stress conditions to create a more active proteasomal isoform; GFP-fusion protein relocates from cytosol to the mitochondrial surface upon oxidative stress |
0.358 | 6.18E-102 | YBL041W | PRE7 | het | Beta 6 subunit of the 20S proteasome |
0.355 | 2.82E-100 | YPL144W | POC4 | hom | Component of a heterodimeric Poc4p-Irc25p chaperone involved in assembly of alpha subunits into the 20S proteasome; may regulate formation of proteasome isoforms with alternative subunits under different conditions |
0.351 | 1.19E-97 | YBR003W | COQ1 | hom | Hexaprenyl pyrophosphate synthetase, catalyzes the first step in ubiquinone (coenzyme Q) biosynthesis |
0.341 | 6.70E-92 | YML014W | TRM9 | hom | tRNA methyltransferase; catalyzes modification of wobble bases in tRNA anticodons to 2, 5-methoxycarbonylmethyluridine and 5-methoxycarbonylmethyl-2-thiouridine; may act as part of a complex with Trm112p; deletion mutation increases translational infidelity, including amino acid misincorporation and -1 frameshifting, and also confers resistance to zymocin; null mutant displays activation of stress responses |
0.340 | 1.03E-91 | YNR042W_d | YNR042W_d | hom | Dubious open reading frame unlikely to encode a protein, based on available experimental and comparative sequence data; completely overlaps verified gene COQ2 |
0.336 | 2.34E-89 | YGL011C | SCL1 | het | Alpha 1 subunit of the 20S proteasome involved in the degradation of ubiquitinated substrates; 20S proteasome is the core complex of the 26S proteasome; essential for growth; detected in the mitochondria |
0.335 | 1.79E-88 | YLR201C | COQ9 | hom | Protein required for ubiquinone (coenzyme Q) biosynthesis and respiratory growth; localizes to the matrix face of the mitochondrial inner membrane in a large complex with ubiquinone biosynthetic enzymes |
0.325 | 1.83E-83 | YDR204W | COQ4 | hom | Protein with a role in ubiquinone (Coenzyme Q) biosynthesis, possibly functioning in stabilization of Coq7p; located on the matrix face of the mitochondrial inner membrane; component of a mitochondrial ubiquinone-synthesizing complex |
0.322 | 1.96E-81 | YGL119W | COQ8 | hom | Protein required for ubiquinone biosynthesis and respiratory growth; exhibits genetic interaction with COQ9, suggesting a common function; similar to prokaryotic proteins involved in early steps of ubiquinone biosynthesis; COQ8 has a paralog, YBR230W-A, that arose from the whole genome duplication |
0.321 | 7.30E-81 | YER019C-A | SBH2 | hom | Ssh1p-Sss1p-Sbh2p complex component, involved in protein translocation into the endoplasmic reticulum; homologous to Sbh1p |
0.314 | 9.39E-78 | YNL111C | CYB5 | hom | Cytochrome b5, involved in the sterol and lipid biosynthesis pathways; acts as an electron donor to support sterol C5-6 desaturation |