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Crystal structure of the alpha-kinase domain of myosin-II heavy chain kinase a in complex with adenosine

Analyse Crystal structure of the alpha-kinase domain of myosin-II heavy chain kinase a… in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
4ZME
Type
protein
Length
517 residues
Chains
2
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Myosin heavy chain kinase a
EC
2.7.11.7
UniProt
P42527
Ligands
ADN, ZN, PO4
Pockets
5 · best druggability 0.76

Structure

x-ray diffraction · 2 distinct chains · 22% helix, 28% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
AMyosin heavy chain kinase a (EC 2.7.11.7)protein26222% helix, 28% strandP42527
BMyosin heavy chain kinase a (EC 2.7.11.7)protein25523% helix, 28% strandP42527

Ligands and binding sites

  • ADN · Adenosine · ligand · 2 copies · chains A, B
  • ZN · Zinc ion · metal · 2 copies · chains A, B
  • PO4 · Phosphate ion · ion · 4 copies · chains A, B
  • PGE · Triethylene glycol · additive · chains B

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

Pockets

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

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
111950.760.78111empty
22950.590.7837ADN, PO4
32310.570.7933ADN, PO4
41000.390.7618empty
5720.340.7613empty

Interfaces

1 interface between chains.

  • A–B · 1075 Ų buried · 13 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 2 modified (phosphorylation).

Compared structures

  • 4ZME · Crystal Structure of the Alpha-kinase Domain of Myosin-II Heavy Chain Kinase A in Complex… · the same entry in another collection · chain A against A, TM-score 1.00
  • P42527 · AlphaFold monomer V2.0 prediction for myosin heavy chain kinase a (P42527) · a predicted model of the same protein · chain B against A, TM-score 0.80

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