5YPC
p62/SQSTM1 ZZ domain with Phe-peptide
Summary for 5YPC
| Entry DOI | 10.2210/pdb5ypc/pdb |
| Descriptor | 78 kDa glucose-regulated protein,Sequestosome-1, ZINC ION (3 entities in total) |
| Functional Keywords | complex, p62/sqstm1, zz domain, autophagy, n-end rule, signaling protein |
| Biological source | Homo sapiens (Human) More |
| Total number of polymer chains | 4 |
| Total formula weight | 26536.45 |
| Authors | Kwon, D.H.,Kim, L.,Song, H.K. (deposition date: 2017-11-01, release date: 2018-08-29, Last modification date: 2024-03-27) |
| Primary citation | Kwon, D.H.,Park, O.H.,Kim, L.,Jung, Y.O.,Park, Y.,Jeong, H.,Hyun, J.,Kim, Y.K.,Song, H.K. Insights into degradation mechanism of N-end rule substrates by p62/SQSTM1 autophagy adapter. Nat Commun, 9:3291-3291, 2018 Cited by PubMed Abstract: p62/SQSTM1 is the key autophagy adapter protein and the hub of multi-cellular signaling. It was recently reported that autophagy and N-end rule pathways are linked via p62. However, the exact recognition mode of degrading substrates and regulation of p62 in the autophagic pathway remain unknown. Here, we present the complex structures between the ZZ-domain of p62 and various type-1 and type-2 N-degrons. The binding mode employed in the interaction of the ZZ-domain with N-degrons differs from that employed by classic N-recognins. It was also determined that oligomerization via the PB1 domain can control functional affinity to the R-BiP substrate. Unexpectedly, we found that self-oligomerization and disassembly of p62 are pH-dependent. These findings broaden our understanding of the functional repertoire of the N-end rule pathway and provide an insight into the regulation of p62 during the autophagic pathway. PubMed: 30120248DOI: 10.1038/s41467-018-05825-x PDB entries with the same primary citation |
| Experimental method | X-RAY DIFFRACTION (1.962 Å) |
Structure validation
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