9D1I: Ubiquitin

Structure of Ubiquitin bound to KLHDC3-EloB/C. Determined by X-ray diffraction at 2.0 Å resolution. Released 20 Nov 2024.

Method
X-ray diffraction
Resolution
2.0 Å
Organism
Homo sapiens
Chains
4
Atoms
5,527
Mol. weight
77.52 kDa
Released
20 Nov 2024

Explore 9D1I in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

9D1I contains 26 α-helices and 66 β-strands across 4 chains. Residue ranges use author residue numbering, as in the PDB file, from PDBe. To see them in 3D, choose the Cartoon representation with Secondary structure coloring: helices, sheets and coils get different colors.

Chain A: 11 helices, 43 β-strands

ElementResiduesLengthSheet
β-strand3-861
β-strand1512
β-strand18-2253
β-strand25-2953
β-strand3212
β-strand4314
α-helix44-452
β-strand46-5053
β-strand55-5843
α-helix59-646
α-helix70-712
α-helix741
β-strand7514
β-strand78-8585
β-strand88-9585
β-strand10115
β-strand106-10945
β-strand115-11625
β-strand121-12226
α-helix124-1274
β-strand128-12927
β-strand132-13656
β-strand139-14356
β-strand146-14727
β-strand152-15327
β-strand157-16156
β-strand166-16946
β-strand17318
α-helix176-1783
β-strand18119
β-strand184-18858
β-strand191-19558
β-strand198-20039
β-strand210-21239
β-strand217-22048
β-strand225-22628
α-helix227-2282
α-helix236-2383
β-strand240110
β-strand243-247510
β-strand250-258910
β-strand263-2721010
β-strand277-281510
β-strand28411
α-helix288-2892
β-strand291110
β-strand292111
β-strand295-29951
β-strand302-30651
β-strand309-311311
β-strand323-325311
β-strand329-33351
α-helix338-34811
α-helix358-36710
Chain B: 7 helices, 13 β-strands
ElementResiduesLengthSheet
β-strand2-9812
β-strand10113
β-strand12-19812
β-strand23114
α-helix24-3512
α-helix39-413
β-strand42-46512
β-strand49-50212
α-helix51-522
β-strand56114
α-helix64-663
β-strand68115
β-strand71115
α-helix721
β-strand73-79712
β-strand80116
β-strand85116
α-helix86-883
β-strand90113
α-helix91-933
Chain C: 4 helices, 3 β-strands
ElementResiduesLengthSheet
β-strand18-22512
β-strand28-32512
α-helix33-364
α-helix40-467
β-strand59-61312
α-helix67-8317
α-helix97-11014
Chain D: 4 helices, 7 β-strands
ElementResiduesLengthSheet
β-strand2-7617
β-strand12-16517
β-strand22118
α-helix23-3412
α-helix38-403
β-strand41-45517
β-strand48-49217
α-helix50-512
β-strand55118
α-helix57-593
β-strand66-71617

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
Kelch domain-containing protein 3Aprotein383Homo sapiensQ9BQ90 (AlphaFold model)
Elongin-BBprotein104Homo sapiensQ15370 (AlphaFold model)
Elongin-CCprotein121Homo sapiensQ15369 (AlphaFold model)
UbiquitinDprotein76Homo sapiensP0CG48 (AlphaFold model)
Sequence of entity 1 (A), FASTA
>9D1I_1 Kelch domain-containing protein 3 (chains A)
XMLRWTVHLEGGPRRVNHAAVAVGHRVYSFGGYCSGEDYETLRQIDVHIFNAVSLRWTKL
PPVKSAIRGQAPVVPYMRYGHSTVLIDDTVLLWGGRNDTEGACNVLYAFDVNTHKWFTPR
VSGTVPGARDGHSACVLGKIMYIFGGYEQQADCFSNDIHKLDTSTMTWTLICTKGSPARW
RDFHSATMLGSHMYVFGGRADRFGPFHSNNEIYCNRIRVFDTRTEAWLDCPPTPVLPEGR
RSHSAFGYNGELYIFGGYNARLNRHFHDLWKFNPVSFTWKKIEPKGKGPCPRRRQCCCIV
GDKIVLFGGTSPSPEEGLGDEFDLIDHSDLHILDFSPSLKTLCKLAVIQYNLDQSCLPHD
IRWELNAMTTNSNISRPIVSSHK
Sequence of entity 2 (B), FASTA
>9D1I_2 Elongin-B (chains B)
MDVFLMIRRHKTTIFTDAKESSTVFELKRIVEGILKRPPDEQRLYKDDQLLDDGKTLGEC
GFTSQTARPQAPATVGLAFRADDTFEALCIEPFSSPPELPDVMK
Sequence of entity 3 (C), FASTA
>9D1I_3 Elongin-C (chains C)
MSYYHHHHHHDYDIPTTENLYGQGAMYVKLISSDGHEFIVKREHALTSGTIKAMLSGPGQ
FAENETNEVNFREIPSHVLSKVCMYFTYKVRYTNSSTEIPEFPIAPEIALELLMAANFLD
C
Sequence of entity 4 (D), FASTA
>9D1I_4 Ubiquitin (chains D)
MQIFVKTLTGKTITLEVEPSDTIENVKAKIQDKEGIPPDQQRLIFAGKQLEDGRTLSDYN
IQKESTLHLVLRLRGG

Primary citation

Structural basis for C-degron selectivity across KLHDCX family E3 ubiquitin ligases. Scott, D.C., Chittori, S., Purser, N. et al. Nat Commun (2024) 15:9899-9899. DOI 10.1038/s41467-024-54126-z · PubMed

Other PDB entries of the same protein (UniProt Q9BQ90 (AlphaFold model), which also has an AlphaFold model), best resolution first:

Browse structure collections

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