› 3swb

X-ray diffraction
1.67Å resolution

Crystal structure of the amino-terminal domain of human cardiac troponin C in complex with cadmium at 1.7 A resolution

Released:
DOI: 10.2210/pdb3swb/pdb
PDB entry 3swb coloured by chain, front view.
PDB entry 3swb coloured by chain, side view.
PDB entry 3swb coloured by chain, top view.
Source organism: Homo sapiens
Primary publication:
The structure of cardiac troponin C regulatory domain with bound Cd2+ reveals a closed conformation and unique ion coordination.
Zhang XL, Tibbits GF, Paetzel M
Acta Crystallogr D Biol Crystallogr 69 722-34 (2013)
PMID: 23633581

Function and Biology Details

Biochemical function:
Biological process:
  • not assigned
Cellular component:
  • not assigned
Sequence domains:

Structure analysis Details

Assembly composition:
monomeric (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-159088 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Troponin C, slow skeletal and cardiac muscles Chain: A
Molecule details ›
Chain: A
Length: 89 amino acids
Theoretical weight: 10.07 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P63316 (Residues: 1-89; Coverage: 55%)
Gene names: TNNC, TNNC1
Sequence domains: EF-hand domain pair

Ligands and Environments

3 bound ligands:
Ligand CD 6 x CD
Ligand CA 3 x CA
Ligand ACT 1 x ACT
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS BEAMLINE X4A
Spacegroup: P6122
Unit cell:
a: 49.793Å b: 49.793Å c: 117.475Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.136 0.135 0.165
Expression system: Escherichia coli BL21(DE3)

Quick links

Citations

2 review citations

Structure and function of cardiac troponin C (TNNC1): Implications for heart failure, cardiomyopathies, and troponin modulating drugs.
Li et al. (2015)
1 more