5QU7: Cytoplasmic protein NCK1

Crystal Structure of swapped human Nck SH3.1 domain, 1.3A, orthorhombic form III. Determined by X-ray diffraction at 1.27 Å resolution. Released 12 Feb 2020.

Method
X-ray diffraction
Resolution
1.27 Å
Organism
Homo sapiens
Chains
2
Atoms
1,119
Mol. weight
19.53 kDa
Released
12 Feb 2020

Explore 5QU7 in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

5QU7 contains 2 α-helices and 16 β-strands across 2 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.

Chains A and B: 1 helix, 8 β-strands

ElementResiduesLengthSheet
β-strand6-1051
β-strand1412
β-strand2111
β-strand2412
β-strand29-3351
β-strand39-4351
β-strand49-5351
α-helix54-563
β-strand57-5931

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
Cytoplasmic protein NCK1A, Bprotein82Homo sapiensP16333 (AlphaFold model)
Sequence of entity 1 (A, B), FASTA
>5QU7_1 Cytoplasmic protein NCK1 (chains A, B)
SGGLNDIFEAQKIEWHEGSENLYFQSEVVVVAKFDYVAQQEQELDIKKNERLWLLDDSKS
WWRVRNSMNKTGFVPSNYVERK

Primary citation

Small molecule AX-024 reduces T cell proliferation independently of CD3ε/Nck1 interaction, which is governed by a domain swap in the Nck1-SH3.1 domain. Richter, K., Rufer, A.C., Muller, M. et al. J Biol Chem (2020) 295:7849-7864. DOI 10.1074/jbc.RA120.012788 · PubMed

Other PDB entries of the same protein (UniProt P16333 (AlphaFold model), which also has an AlphaFold model), best resolution first:

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