6R2I: SUN1-KASH5 6:6 complex

Crystal structure of the SUN1-KASH5 6:6 complex. Determined by X-ray diffraction at 1.54 Å resolution. Released 15 Jul 2020.

Method: X-ray diffraction
Resolution: 1.54 Å
Organism: Homo sapiens
Chains: 2
Atoms: 2,127
Mol. weight: 25.91 kDa
Released: 15 Jul 2020

Explore 6R2I in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

6R2I contains 10 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: 9 helices, 14 β-strands

Element	Residues	Length	Sheet
α-helix	616-618	3
α-helix	619-634	16
α-helix	646-648	3
β-strand	651-652	2	1
α-helix	654-656	3
α-helix	658-659	2
β-strand	660	1	2
α-helix	661	1
β-strand	666-670	5	3
β-strand	673-678	6	3
α-helix	682-686	5
β-strand	696-699	4	2
β-strand	703-721	19	1
α-helix	725-727	3
β-strand	737	1	4
β-strand	739-744	6	1
β-strand	754-760	7	1
β-strand	768-772	5	1
α-helix	773-775	3
β-strand	782-789	8	1
β-strand	792	1	4
β-strand	798-801	4	2
β-strand	803-810	8	1

Chain B: 1 helix, 1 β-strand

Element	Residues	Length	Sheet
β-strand	548	1	3
α-helix	559-561	3

Molecules and chains

Molecule	Chains	Type	Length	Organism	UniProt
SUN domain-containing protein 1	A	protein	203	Homo sapiens	O94901 (AlphaFold model)
KASH5	B	protein	33	Homo sapiens	Q8N6L0 (AlphaFold model)

Sequence of entity 1 (A), FASTA

>6R2I_1 SUN domain-containing protein 1 (chains A)
GSGGSGGITEAQARAIVNSALKLYSQDKTGMVDFALESGGGSILSTRCSETYETKTALMS
LFGIPLWYFSQSPRVVIQPDIYPGNCWAFKGSQGYLVVRLSMMIHPAAFTLEHIPKTLSP
TGNISSAPKDFAVYGLENEYQEEGQLLGQFTYDQDGESLQMFQALKRPDDTAFQIVELRI
FSNWGHPEYTCLYRFRVHGEPVK

Sequence of entity 2 (B), FASTA

>6R2I_2 KASH5 (chains B)
GSMTSGTSGTSGGPSPPPTWPHLQLCYLQPPPV

Primary citation

A molecular mechanism for LINC complex branching by structurally diverse SUN-KASH 6:6 assemblies. Gurusaran, M., Davies, O.R. Elife (2021) 10. DOI 10.7554/eLife.60175 · PubMed

Other PDB entries of the same protein (UniProt O94901 (AlphaFold model), which also has an AlphaFold model), best resolution first:

8B46 1.67 Å, Crystal structure of the SUN1-KASH6 9:9 complex
6R15 1.82 Å, Crystal structure of the SUN1-KASH1 6:6 complex
8B5X 1.98 Å, Crystal structure of the SUN1-KASH6 9:6 complex
8AU0 2.07 Å, Crystal structure of the a1 luminal coiled-coil domain of SUN1
7Z8Y 2.29 Å, Crystal structure of the SUN1-KASH6 9:6 complex
6R16 2.75 Å, Crystal structure of the SUN1-KASH4 6:6 complex
7E34 3.19 Å, Crystal structure of SUN1-Speedy A-CDK2

Browse structure collections

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