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MolNFT v1 · #162177 · protein

Crystal structure of the SUN1-KASH4 6:6 complex

6R16 · Sun domain-containing protein 1: “Crystal structure of the SUN1-KASH4 6:6 complex”. X-ray diffraction, 2 ligands (K, ZN), 20 pockets (best druggability 0.84). MolNFT v1 #162177 on GenesisL1: 3D structure, binding sites and pockets…

PDB
6R16
Type
protein
Length
1,316 residues
Chains
12
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Sun domain-containing protein 1; Nesprin-4
UniProt
O94901, Q8N205
Ligands
K, ZN
Pockets
20 · best druggability 0.84

Structure

x-ray diffraction · 6 distinct chains · 11% helix, 37% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
A, DSun domain-containing protein 1protein19514% helix, 42% strandO94901
B, C, E, FSun domain-containing protein 1protein19413% helix, 42% strandO94901
G, HNesprin-4protein260% helix, 19% strandQ8N205
INesprin-4protein250% helix, 20% strandQ8N205
JNesprin-4protein270% helix, 19% strandQ8N205
K, LNesprin-4protein230% helix, 22% strandQ8N205

Ligands and binding sites

  • K · Potassium ion · metal · 6 copies · chains A, B, C, D, E, F
  • ZN · Zinc ion · metal · 3 copies · chains G, J, H, K, I, L
  • EDO · 1,2-ethanediol · additive · 3 copies · chains A, B, I, D, F, L, E, K

Binding sites are the residues within 4.5 Å of a ligand's heavy atoms.

Pockets

20 pockets found on a 1 Å grid, 8 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
19620.840.8585empty
210770.830.84113EDO
34400.670.7962empty
42770.620.8042empty
5750.610.9021empty

Interfaces

34 interfaces between chains.

  • C–J · 949 Ų buried · 7 hydrogen bonds · protein-protein
  • E–F · 929 Ų buried · 7 hydrogen bonds · protein-protein
  • B–C · 882 Ų buried · 8 hydrogen bonds · protein-protein
  • F–G · 853 Ų buried · 5 hydrogen bonds · protein-protein
  • A–B · 848 Ų buried · 7 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 1 disulfide (disulfide).

Compared structures

  • 6R16 · Crystal structure of the SUN1-KASH4 6:6 complex · the same entry in another collection · chain L against L, TM-score 1.00

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