Calcium in PDB 1p54: Effect of Sequence on the Conformational Geometry of Dna Holliday Junctions

The structure of Effect of Sequence on the Conformational Geometry of Dna Holliday Junctions, PDB code: 1p54 was solved by F.A.Hays, J.M.Vargason, P.S.Ho, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	19.18 / 1.90
Space group	C 1 2 1
Cell size a, b, c (Å), α, β, γ (°)	64.840, 22.580, 38.070, 90.00, 106.78, 90.00
R / Rfree (%)	21.5 / 24.2

The structure of Effect of Sequence on the Conformational Geometry of Dna Holliday Junctions also contains other interesting chemical elements:

Bromine	(Br)	2 atoms
Sodium	(Na)	1 atom

The binding sites of Calcium atom in the Effect of Sequence on the Conformational Geometry of Dna Holliday Junctions (pdb code 1p54). 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 Effect of Sequence on the Conformational Geometry of Dna Holliday Junctions, PDB code: 1p54:

Calcium binding site 1 out of 1 in the Effect of Sequence on the Conformational Geometry of Dna Holliday Junctions


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of Effect of Sequence on the Conformational Geometry of Dna Holliday Junctions within 5.0Å range: probe atom residue distance (Å) B Occ A:Ca67 b:14.6 occ:1.00 O A:HOH81 2.2 6.9 1.0 O A:HOH80 2.3 14.2 1.0 O A:HOH27 2.3 10.4 1.0 O A:HOH82 2.9 17.4 1.0 O4' A:DG10 4.1 3.5 1.0 C4' A:DG10 4.1 6.7 1.0 C5' A:DG10 4.2 1.0 1.0 N2 A:DG9 4.3 1.8 1.0 N3 A:DG9 4.6 5.1 1.0 C2 A:DG9 4.9 5.9 1.0

F.A.Hays, J.M.Vargason, P.S.Ho. Effect of Sequence on the Conformation of Dna Holliday Junctions Biochemistry V. 42 9586 2003.
ISSN: ISSN 0006-2960
PubMed: 12911300
DOI: 10.1021/BI0346603