Calcium in PDB 1zfa: Gga Duplex A-Dna

The structure of Gga Duplex A-Dna, PDB code: 1zfa was solved by F.A.Hays, A.T.Teegarden, Z.J.R.Jones, M.Harms, D.Raup, J.Watson, E.Cavaliere, P.S.Ho, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	19.23 / 1.56
Space group	P 21 21 21
Cell size a, b, c (Å), α, β, γ (°)	23.930, 44.620, 46.780, 90.00, 90.00, 90.00
R / Rfree (%)	24.1 / 30

The structure of Gga Duplex A-Dna also contains other interesting chemical elements:

Sodium

(Na)

3 atoms

The binding sites of Calcium atom in the Gga Duplex A-Dna (pdb code 1zfa). 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 Gga Duplex A-Dna, PDB code: 1zfa:

Calcium binding site 1 out of 1 in the Gga Duplex A-Dna


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of Gga Duplex A-Dna within 5.0Å range: probe atom residue distance (Å) B Occ B:Ca22 b:9.7 occ:1.00 O B:HOH27 2.2 4.7 1.0 O B:HOH38 2.3 1.1 1.0 O B:HOH40 2.4 7.1 1.0 O B:HOH55 2.5 13.3 1.0 O B:HOH127 2.7 14.9 1.0 O B:HOH65 2.9 16.8 1.0 O B:HOH154 4.2 13.3 1.0 O B:HOH81 4.2 11.0 1.0 O B:HOH94 4.4 5.1 1.0 O6 B:DG17 4.4 1.4 1.0 O A:HOH67 4.5 11.1 1.0 O B:HOH46 4.5 9.5 1.0 N7 B:DG16 4.5 3.9 1.0 N7 B:DG17 4.6 4.0 1.0 O6 B:DG16 4.7 1.0 1.0

F.A.Hays, A.Teegarden, Z.J.Jones, M.Harms, D.Raup, J.Watson, E.Cavaliere, P.S.Ho. How Sequence Defines Structure: A Crystallographic Map of Dna Structure and Conformation. Proc.Natl.Acad.Sci.Usa V. 102 7157 2005.
ISSN: ISSN 0027-8424
PubMed: 15870206
DOI: 10.1073/PNAS.0409455102