› 3iqq

X-ray diffraction
2.01Å resolution

X-ray structure of bovine TRTK12-Ca(2+)-S100B

Released:
DOI: 10.2210/pdb3iqq/pdb
PDB entry 3iqq coloured by chain, front view.
PDB entry 3iqq coloured by chain, side view.
PDB entry 3iqq coloured by chain, top view.
Source organism: Bos taurus
Primary publication:
The effects of CapZ peptide (TRTK-12) binding to S100B-Ca2+ as examined by NMR and X-ray crystallography.
Charpentier TH, Thompson LE, Liriano MA, Varney KM, Wilder PT, Pozharski E, Toth EA, Weber DJ
J Mol Biol 396 1227-43 (2010)
PMID: 20053360

Function and Biology Details

Biochemical function:
Biological process:
Cellular component:
Sequence domains:

Structure analysis Details

Assembly composition:
hetero tetramer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-135974 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Protein S100-B Chain: A
Molecule details ›
Chain: A
Length: 92 amino acids
Theoretical weight: 10.68 KDa
Source organism: Bos taurus
Expression system: Escherichia coli
UniProt:
  • Canonical: P02638 (Residues: 1-92; Coverage: 100%)
Gene name: S100B
Sequence domains:
Structure domains: EF-hand
TRTK12 peptide, CapZ protein Chain: B
Molecule details ›
Chain: B
Length: 12 amino acids
Theoretical weight: 1.48 KDa
Source organism: Bos taurus
Expression system: Not provided

Ligands and Environments

1 bound ligand:
Ligand CA 2 x CA
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU MICROMAX-007
Spacegroup: C2221
Unit cell:
a: 32.951Å b: 89.772Å c: 58.86Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.223 0.221 0.266
Expression systems:
  • Escherichia coli
  • Not provided

Quick links

Citations

2 review citations

Functions of S100 proteins.
Donato et al. (2013)
1 more

9 mentions without citation

Asymmetric mode of Ca²⁺-S100A4 interaction with nonmuscle myosin IIA generates nanomolar affinity required for filament remodeling.
Elliott et al. (2012)
8 more