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MolNFT v1 · #18289 · protein

Crystal structure of the EF3-cam complexed with pmeapp

1PK0 · Calmodulin-sensitive adenylate cyclase: “Crystal structure of the EF3-cam complexed with pmeapp”. X-ray diffraction, 3 ligands (EMA, CA, YB), 20 pockets (best druggability 0.80). MolNFT v1 #18289 on GenesisL1: 3D structure, binding…

PDB
1PK0
Type
protein
Length
1,886 residues
Chains
6
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Calmodulin-sensitive adenylate cyclase; Calmodulin
EC
4.6.1.1
UniProt
P40136, P62158
Ligands
EMA, CA, YB
Pockets
20 · best druggability 0.80

Structure

x-ray diffraction · 4 distinct chains · 41% helix, 14% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
ACalmodulin-sensitive adenylate cyclase (EC 4.6.1.1)protein48442% helix, 15% strandP40136
BCalmodulin-sensitive adenylate cyclase (EC 4.6.1.1)protein47035% helix, 16% strandP40136
CCalmodulin-sensitive adenylate cyclase (EC 4.6.1.1)protein50341% helix, 15% strandP40136
D, E, FCalmodulinprotein14353% helix, 4% strandP62158

Ligands and binding sites

  • EMA · (adenin-9-yl-ethoxymethyl)-hydroxyphosphinyl-diphosphate · ligand · 3 copies · chains A, B, C
  • CA · Calcium ion · metal · 6 copies · chains D, E, F
  • YB · Ytterbium (III) ion · metal · 3 copies · chains A, B, C

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

Pockets

20 pockets found on a 1 Å grid, 18 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
19780.800.8281YB, EMA
29600.800.8278YB, EMA
38750.800.8284empty
48070.790.8381empty
510460.780.8078empty

Interfaces

6 interfaces between chains.

  • C–F · 2998 Ų buried · 26 hydrogen bonds · protein-protein
  • A–D · 2906 Ų buried · 22 hydrogen bonds · protein-protein
  • B–E · 2407 Ų buried · 20 hydrogen bonds · protein-protein
  • A–C · 783 Ų buried · 6 hydrogen bonds · protein-protein
  • B–C · 728 Ų buried · 8 hydrogen bonds · protein-protein

Compared structures

  • 1PK0 · Crystal Structure of the EF3-CaM complexed with PMEApp · the same entry in another collection · chain F against F, TM-score 1.00
  • P40136 · AlphaFold monomer V2.0 prediction for calmodulin-sensitive adenylate cyclase (P40136) · a predicted model of the same protein · chain A against A, TM-score 0.96

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