5KEE: Thermonuclease

Crystal structure of Staphylococcal nuclease variant Delta+PHS L25K/I92F at cryogenic temperature. Determined by X-ray diffraction at 1.5 Å resolution. Released 22 Jun 2016.

Method
X-ray diffraction
Resolution
1.5 Å
Organism
Staphylococcus aureus
Chains
1
Atoms
1,281
Mol. weight
16.64 kDa
Ligands
CA, THP
Released
22 Jun 2016

Explore 5KEE in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

5KEE contains 5 α-helices and 11 β-strands across 1 chain. 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: 5 helices, 11 β-strands

ElementResiduesLengthSheet
β-strand10-1121
β-strand14-1742
β-strand22-2762
β-strand30-3672
β-strand39-4023
α-helix41-433
α-helix55-6814
β-strand72-7541
β-strand8212
β-strand88-9032
β-strand91-9441
β-strand97-9821
α-helix99-1057
β-strand110-11123
α-helix122-13413
α-helix138-1403

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
ThermonucleaseAprotein143Staphylococcus aureusP00644 (AlphaFold model)
Sequence of entity 1 (A), FASTA
>5KEE_1 Thermonuclease (chains A)
ATSTKKLHKEPATLIKAIDGDTVKKMYKGQPMTFRLLLVDTPEFNEKYGPEASAFTKKMV
ENAKKIEVEFDKGQRTDKYGRGLAYFYADGKMVNEALVRQGLAKVAYVYKGNNTHEQLLR
KAEAQAKKEKLNIWSEDNADSGQ

Ligands and cofactors

IDNameFormulaCopies
CACalcium ionCa1
THPThymidine-3',5'-diphosphateC10 H16 N2 O11 P21

Primary citation

Crystal structure of Staphylococcal nuclease variant Delta+PHS L25K/I92F at cryogenic temperature. Skerritt, L.A., Caro, J.A., Heroux, A. et al. To be published.

Other PDB entries of the same protein (UniProt P00644 (AlphaFold model), which also has an AlphaFold model), best resolution first:

Browse structure collections

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