YDR057W
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| Systematic name | YDR057W |
| Gene name | YOS9 |
| Aliases | |
| Feature type | ORF, Verified |
| Coordinates | Chr IV:565927..567555 |
| Primary SGDID | S000002464 |
Description of YDR057W: ER quality-control lectin; integral subunit of the HRD ligase; binds to glycans with terminal alpha-1,6 linked mannose on misfolded N-glycosylated proteins and participates in targeting proteins to ERAD; member of the OS-9 protein family[1][2][3][4][5][6]
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Protein Details
Protein Function/Process
The ER lumenal protein Yos9p is required for both release of DHFR and degradation of multiple ERAD substrates. Yos9p forms a complex with substrates and has a sugar binding pocket that is essential for its ERAD function. Nonetheless, substrate recognition persists even when the sugar binding site is mutated or CPY* is unglycosylated. These and other considerations suggest that Yos9p plays a critical role in the bipartite recognition of terminally misfolded glycoproteins. [1] [7]
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References
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- ↑ 1.0 1.1 Bhamidipati A, et al. (2005) Exploration of the Topological Requirements of ERAD Identifies Yos9p as a Lectin Sensor of Misfolded Glycoproteins in the ER Lumen. Mol Cell 19(6):741-51 SGD PMID 16168370
- ↑ Buschhorn BA, et al. (2004) A genome-wide screen identifies Yos9p as essential for ER-associated degradation of glycoproteins. FEBS Lett 577(3):422-6 SGD PMID 15556621
- ↑ Gauss R, et al. (2006) A complex of Yos9p and the HRD ligase integrates endoplasmic reticulum quality control into the degradation machinery. Nat Cell Biol 8(8):849-54 SGD PMID 16845381
- ↑ Kim W, et al. (2005) Yos9p detects and targets misfolded glycoproteins for ER-associated degradation. Mol Cell 19(6):753-64 SGD PMID 16168371
- ↑ Quan EM, et al. (2008) Defining the glycan destruction signal for endoplasmic reticulum-associated degradation. Mol Cell 32(6):870-7 SGD PMID 19111666
- ↑ Szathmary R, et al. (2005) Yos9 protein is essential for degradation of misfolded glycoproteins and may function as lectin in ERAD. Mol Cell 19(6):765-75 SGD PMID 16168372
- ↑ submitted by Maya Schuldiner on 2005-12-09
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