Calcium in PDB 1d56: Alternative Structures For Alternating Poly(Da-Dt) Tracts: the Structure of the B-Dna Decamer C-G-A-T-A-T-A-T-C-G

The structure of Alternative Structures For Alternating Poly(Da-Dt) Tracts: the Structure of the B-Dna Decamer C-G-A-T-A-T-A-T-C-G, PDB code: 1d56 was solved by H.Yuan, J.Quintana, R.E.Dickerson, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	8.00 / 1.70
Space group	P 21 21 21
Cell size a, b, c (Å), α, β, γ (°)	38.760, 40.060, 33.730, 90.00, 90.00, 90.00
R / Rfree (%)	n/a / n/a

The binding sites of Calcium atom in the Alternative Structures For Alternating Poly(Da-Dt) Tracts: the Structure of the B-Dna Decamer C-G-A-T-A-T-A-T-C-G (pdb code 1d56). 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 Alternative Structures For Alternating Poly(Da-Dt) Tracts: the Structure of the B-Dna Decamer C-G-A-T-A-T-A-T-C-G, PDB code: 1d56:

Calcium binding site 1 out of 1 in the Alternative Structures For Alternating Poly(Da-Dt) Tracts: the Structure of the B-Dna Decamer C-G-A-T-A-T-A-T-C-G


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of Alternative Structures For Alternating Poly(Da-Dt) Tracts: the Structure of the B-Dna Decamer C-G-A-T-A-T-A-T-C-G within 5.0Å range: probe atom residue distance (Å) B Occ A:Ca21 b:16.8 occ:1.00 O A:HOH110 2.4 14.9 1.0 O A:HOH115 2.4 24.3 1.0 O A:HOH111 2.4 21.0 1.0 O B:HOH114 2.4 14.5 1.0 O A:HOH109 2.4 22.6 1.0 O A:HOH113 2.4 25.0 1.0 O A:HOH112 2.4 16.4 1.0 O A:HOH101 4.3 40.9 1.0 O4' A:DT6 4.4 17.0 1.0 O A:HOH52 4.4 30.7 1.0 O A:HOH33 4.5 14.0 1.0 C4' A:DT6 4.5 12.7 1.0 C5' A:DT6 4.5 16.2 1.0 O4' B:DT18 4.6 9.6 1.0 C4' B:DT18 4.9 10.6 1.0 N3 A:DA5 4.9 10.0 1.0 O A:HOH80 4.9 28.0 1.0

H.Yuan, J.Quintana, R.E.Dickerson. Alternative Structures For Alternating Poly(Da-Dt) Tracts: the Structure of the B-Dna Decamer C-G-A-T-A-T-A-T-C-G. Biochemistry V. 31 8009 1992.
ISSN: ISSN 0006-2960
PubMed: 1510987
DOI: 10.1021/BI00149A035