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MolNFT v1 · #84639 · protein

NMEPHEB25 insulin analogue crystal structure

3ZQR · Insulin a chain: “NMEPHEB25 insulin analogue crystal structure”. X-ray diffraction, 3 ligands (IPH, ZN, CL), 9 pockets (best druggability 0.81). MolNFT v1 #84639 on GenesisL1: 3D structure, binding sites and pockets in GL1X.

PDB
3ZQR
Type
protein
Length
294 residues
Chains
12
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Insulin a chain; Insulin B chain
UniProt
P01308
Ligands
IPH, ZN, CL
Pockets
9 · best druggability 0.81

Structure

x-ray diffraction · 5 distinct chains · 69% helix, 9% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
A, C, E, G, I, KInsulin a chainprotein2148% helix, 5% strandP01308
BInsulin B chainprotein2972% helix, 7% strandP01308
D, FInsulin B chainprotein2875% helix, 11% strandP01308
HInsulin B chainprotein2774% helix, 11% strandP01308
J, LInsulin B chainprotein2871% helix, 11% strandP01308

Ligands and binding sites

  • IPH · Phenol · ligand · 6 copies · chains A, B, F, H, C, D, J, L, E, G, I, K
  • ZN · Zinc ion · metal · 2 copies · chains B, F, J, D, H, L
  • CL · Chloride ion · ion · 2 copies · chains B, F, J, D, H, L

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

Pockets

9 pockets found on a 1 Å grid, 3 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
11810.810.9533IPH
21790.800.9531IPH
33060.750.8750IPH
41080.460.7919empty
5810.430.8020ZN, CL

Interfaces

39 interfaces between chains.

  • J–L · 753 Ų buried · 8 hydrogen bonds · protein-protein
  • B–D · 658 Ų buried · 9 hydrogen bonds · protein-protein
  • F–H · 647 Ų buried · 10 hydrogen bonds · protein-protein
  • K–L · 616 Ų buried · 1 hydrogen bond · protein-protein
  • G–H · 605 Ų buried · 4 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 18 disulfide, 6 modified (disulfide, nonstandard).

Compared structures

  • 3ZQR · NMePheB25 insulin analogue crystal structure · the same entry in another collection · chain A against A, TM-score 1.00

Analyse

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