| Standard Name | JID1 1 |
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| Systematic Name | YPR061C |
| Feature Type | ORF, Verified |
| Description | Probable Hsp40p co-chaperone, has a DnaJ-like domain and appears to be involved in ER-associated degradation of misfolded proteins containing a tightly folded cytoplasmic domain; inhibits replication of Brome mosaic virus in S. cerevisiae (1, 2 and see Summary Paragraph) |
| Name Description | DnaJ protein Involved in ER-associated Degradation 1 |
| Chromosomal Location | |
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| Note: this feature is encoded on the Crick strand. | |
| View Computational GO annotations for JID1 | |
| Molecular Function | |
| Manually curated |
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| Biological Process | |
| Manually curated |
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| Cellular Component | |
| Manually curated | |
| High-throughput |
| 134 total interaction(s) for 107 unique genes/features. | |
| Physical Interactions |
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| Genetic Interactions |
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| Localization | |
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| Phosphorylation | PhosphoGRID | PhosphoPep Database |
| Structure | |
| Homologs |
| Note: this feature is encoded on the Crick strand. | |||||||||||||
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| Last Update | Coordinates: 2011-02-03 | Sequence: 1996-07-31 | ||||||||||||
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| S288C only | |
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| S288C vs. other species | |
| S288C vs. other strains |
| External Links | All Associated Seq | Entrez Gene | Entrez RefSeq Protein | MIPS | Search all NCBI (Entrez) | UniProtKB |
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| Primary SGDID | S000006265 |
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Hsp40/DnaJ is a family of proteins, established by bacterial DnaJ, that regulates Hsp70 chaperone activity. Hsp40s stimulate the intrinsically weak ATPase activity of Hsp70 proteins and facilitate Hsp70 interaction with polypeptide substrates. Hsp70 family members often have multiple Hsp40 partners, and these specific pairings govern Hsp70 chaperone involvement in particular processes (reviewed in 3, 4, and 5). All Hsp40s contain a highly conserved 75-amino acid J domain, which interacts with the ATPase domain of Hsp70 to stimulate ATP hydrolysis. However, there are also other conserved structural domains, and based on the presence or absence of these regions, the Hsp40 family can be divided into three subtypes: type I, type II and type III (a comprehensive overview of the structural features of the different HSP40 subtypes can be found in 5). Sequence analysis of the S. cerevisiae genome has revealed 22 proteins in the Hsp40/DnaJ family: YDJ1, XDJ1, APJ1, SIS1, DJP1, ZUO1, SWA2, JJJ1, JJJ2, JJJ3, CAJ1, CWC23, MDJ1, MDJ2, PAM18, JAC1, JID1, SCJ1, HLJ1, JEM1, SEC63, and ERJ5 (5).
| 1) | Taxis C, et al. (2003) Use of modular substrates demonstrates mechanistic diversity and reveals differences in chaperone requirement of ERAD. J Biol Chem 278(38):35903-13 |
| 2) | Kushner DB, et al. (2003) Systematic, genome-wide identification of host genes affecting replication of a positive-strand RNA virus. Proc Natl Acad Sci U S A 100(26):15764-9 |
| 3) | Qiu XB, et al. (2006) The diversity of the DnaJ/Hsp40 family, the crucial partners for Hsp70 chaperones. Cell Mol Life Sci 63(22):2560-2570 |
| 4) | Cyr DM, et al. (1994) DnaJ-like proteins: molecular chaperones and specific regulators of Hsp70. Trends Biochem Sci 19(4):176-81 |
| 5) | Walsh P, et al. (2004) The J-protein family: modulating protein assembly, disassembly and translocation. EMBO Rep 5(6):567-71 |






