Calcium in PDB 2q69: Crystal Structure of Nak Channel D66N Mutant

The structure of Crystal Structure of Nak Channel D66N Mutant, PDB code: 2q69 was solved by A.Alam, N.Shi, Y.Jiang, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	50.00 / 2.40
Space group	C 2 2 21
Cell size a, b, c (Å), α, β, γ (°)	82.345, 85.710, 130.648, 90.00, 90.00, 90.00
R / Rfree (%)	24 / 26.7

The structure of Crystal Structure of Nak Channel D66N Mutant also contains other interesting chemical elements:

Sodium

(Na)

2 atoms

The binding sites of Calcium atom in the Crystal Structure of Nak Channel D66N Mutant (pdb code 2q69). This binding sites where shown within 5.0 Angstroms radius around Calcium atom.
In total only one binding site of Calcium was determined in the Crystal Structure of Nak Channel D66N Mutant, PDB code: 2q69:

Calcium binding site 1 out of 1 in the Crystal Structure of Nak Channel D66N Mutant


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of Crystal Structure of Nak Channel D66N Mutant within 5.0Å range: probe atom residue distance (Å) B Occ B:Ca115 b:56.0 occ:0.50 O A:VAL64 2.5 49.6 1.0 O B:VAL64 2.5 57.4 1.0 C A:VAL64 3.3 53.6 1.0 O B:THR63 3.4 62.9 1.0 C B:VAL64 3.4 54.7 1.0 O A:THR63 3.5 58.9 1.0 N A:GLY65 4.0 65.4 1.0 CA A:GLY65 4.1 64.8 1.0 CA B:VAL64 4.1 45.9 1.0 CA A:VAL64 4.2 39.7 1.0 NA B:NA116 4.2 88.2 0.5 NA A:NA115 4.3 80.0 0.5 N B:GLY65 4.3 58.5 1.0 C B:THR63 4.5 41.6 1.0 CA B:GLY65 4.5 52.9 1.0 C A:THR63 4.5 42.1 1.0 N B:VAL64 4.8 49.6 1.0 N A:VAL64 4.9 53.2 1.0

A.Alam, N.Shi, Y.Jiang. Structural Insight Into CA2+ Specificity in Tetrameric Cation Channels. Proc.Natl.Acad.Sci.Usa V. 104 15334 2007.
ISSN: ISSN 0027-8424
PubMed: 17878296
DOI: 10.1073/PNAS.0707324104