4DXR: Human SUN2-KASH1 complex

Human SUN2-KASH1 complex. Determined by X-ray diffraction at 2.32 Å resolution. Released 6 Jun 2012.

Method
X-ray diffraction
Resolution
2.32 Å
Organism
Homo sapiens
Chains
2
Atoms
1,919
Mol. weight
26.66 kDa
Ligands
DMU
Released
6 Jun 2012

Explore 4DXR in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

4DXR contains 9 α-helices and 15 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.

Chain A: 7 helices, 14 β-strands

ElementResiduesLengthSheet
α-helix525-54016
α-helix552-5543
β-strand557-56041
β-strand56612
β-strand572-57653
β-strand579-58463
α-helix588-5925
β-strand602-60542
β-strand609-627191
α-helix631-6333
α-helix635-6373
β-strand64314
β-strand645-65171
α-helix658-6592
β-strand660-66671
β-strand674-67851
α-helix6791
β-strand687-69481
β-strand69714
β-strand703-70642
β-strand708-71581
Chain B: 2 helices, 1 β-strand
ElementResiduesLengthSheet
α-helix8780-87823
β-strand8787-879043
α-helix8794-87963

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
SUN domain-containing protein 2Aprotein202Homo sapiensQ9UH99 (AlphaFold model)
Nesprin-1Bprotein35Homo sapiensQ8NF91 (AlphaFold model)
Sequence of entity 1 (A), FASTA
>4DXR_1 SUN domain-containing protein 2 (chains A)
GPGGSGGVTEEQVHHIVKQALQRYSEDRIGLADYALESGGASVISTRCSETYETKTALLS
LFGIPLWYHSQSPRVILQPDVHPGNCWAFQGPQGFAVVRLSARIRPTAVTLEHVPKALSP
NSTISSAPKDFAIFGFDEDLQQEGTLLGKFTYDQDGEPIQTFHFQAPTMATYQVVELRIL
TNWGHPEYTCIYRFRVHGEPAH
Sequence of entity 2 (B), FASTA
>4DXR_2 Nesprin-1 (chains B)
GPGGSGEEDYSCALSNNFARSFHPMLRYTNGPPPL

Ligands and cofactors

IDNameFormulaCopies
DMUDecyl-beta-D-maltopyranosideC22 H42 O111

Water and common crystallization additives (K) are not listed.

Primary citation

LINC Complexes Form by Binding of Three KASH Peptides to Domain Interfaces of Trimeric SUN Proteins. Sosa, B.A., Rothballer, A., Kutay, U. et al. Cell (2012) 149:1035-1047. DOI 10.1016/j.cell.2012.03.046 · PubMed

Other PDB entries of the same protein (UniProt Q9UH99 (AlphaFold model), which also has an AlphaFold model), best resolution first:

Browse structure collections

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