8IKT: E3 ubiquitin-protein ligase parkin

Ternary trans-complex of phospho-parkin with cis ACT and pUb. Determined by X-ray diffraction at 2.6 Å resolution. Released 11 Sept 2024.

Method
X-ray diffraction
Resolution
2.6 Å
Organism
Homo sapiens
Chains
3
Atoms
3,088
Mol. weight
52.31 kDa
Ligands
3CN, ZN
Released
11 Sept 2024

Explore 8IKT in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

8IKT contains 12 α-helices and 32 β-strands across 3 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: 6 helices, 18 β-strands

ElementResiduesLengthSheet
β-strand146-15051
β-strand156-15941
β-strand160-16672
β-strand174-17633
α-helix183-1875
β-strand19314
β-strand194-19633
β-strand20514
β-strand206-21272
β-strand224-23071
α-helix236-2383
β-strand248-25031
β-strand258-26031
α-helix261-27313
α-helix2771
β-strand278-28035
β-strand284-28635
α-helix301-3077
α-helix309-32618
β-strand330-33126
β-strand340-34236
β-strand349-35137
β-strand363-36537
β-strand37117
Chain B: 3 helices, 7 β-strands
ElementResiduesLengthSheet
β-strand2-766
β-strand12-1656
β-strand2218
α-helix23-3412
β-strand41-4556
β-strand48-4926
α-helix50-512
β-strand5518
α-helix57-593
β-strand66-7276
Chain C: 3 helices, 7 β-strands
ElementResiduesLengthSheet
β-strand2-769
β-strand13-1649
β-strand22110
α-helix23-3412
α-helix38-403
β-strand41-4559
β-strand48-5039
α-helix511
β-strand55110
β-strand66-7169

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
E3 ubiquitin-protein ligase parkinAprotein312Homo sapiensO60260 (AlphaFold model)
UbiquitinBprotein75Homo sapiensP62987 (AlphaFold model)
E3 ubiquitin-protein ligase parkinCprotein76Homo sapiensO60260 (AlphaFold model)
Sequence of entity 1 (A), FASTA
>8IKT_1 E3 ubiquitin-protein ligase parkin (chains A)
SGQEMNATGGDDPRNAAGGCEREPQSLTRVDLSSSVLPGDSVGLAVILHTDSRKDSPPAG
SPAGRSIYNSFYVYCKGPCQRVQPGKLRVQCSTCRQATLTLTQGPSCWDDVLIPNRMSGE
CQSPHCPGTSAEFFFKCGAHPTSDKETSVALHLIATNSRNITCITCTDVRSPVLVFQCNS
RHVICLDCFHLYCVTRLNDRQFVHDPQLGYSLPCVAGCPNSLIKELHHFRILGEEQYNRY
QQYGAEECVLQMGGVLCPRPGCGAGLLPEPDCRKVTCEGGNGLGCGFAFCRECKEAYHEG
ECSAVFENLYFQ
Sequence of entity 2 (B), FASTA
>8IKT_2 Ubiquitin (chains B)
MQIFVKTLTGKTITLEVEPSDTIENVKAKIQDKEGIPPDQQRLIFAGKQLEDGRTLSDYN
IQKESTLHLVLRLRG
Sequence of entity 3 (C), FASTA
>8IKT_3 E3 ubiquitin-protein ligase parkin (chains C)
MIVFVRFNSSHGFPVEVDSDTSIFQLKEVVAKRQGVPADQLRVIFAGKELRNDWTVQNCD
LDQQSIVHIVQRPWRK

Ligands and cofactors

IDNameFormulaCopies
3CN3-aminopropaneC3 H9 N1
ZNZinc ionZn6

Water and common crystallization additives (MPD, GOL) are not listed.

Primary citation

Additional feedforward mechanism of Parkin activation via binding of phospho-UBL and RING0 in trans. Lenka, D.R., Dahe, S.V., Antico, O. et al. Elife (2024) 13. DOI 10.7554/eLife.96699 · PubMed

Other PDB entries of the same protein (UniProt O60260 (AlphaFold model), which also has an AlphaFold model), best resolution first:

Browse structure collections

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