Calcium in PDB 4z20: Crystal Structure of Meganuclease I-Smami Bound to Uncleaveable Dna with A Ttgt Central Four

The structure of Crystal Structure of Meganuclease I-Smami Bound to Uncleaveable Dna with A Ttgt Central Four, PDB code: 4z20 was solved by J.P.Hallinan, B.L.Stoddard, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	86.13 / 3.20
Space group	P 1 21 1
Cell size a, b, c (Å), α, β, γ (°)	45.690, 172.262, 59.994, 90.00, 92.36, 90.00
R / Rfree (%)	23.3 / 29.1

The binding sites of Calcium atom in the Crystal Structure of Meganuclease I-Smami Bound to Uncleaveable Dna with A Ttgt Central Four (pdb code 4z20). This binding sites where shown within 5.0 Angstroms radius around Calcium atom.
In total 2 binding sites of Calcium where determined in the Crystal Structure of Meganuclease I-Smami Bound to Uncleaveable Dna with A Ttgt Central Four, PDB code: 4z20:
Jump to Calcium binding site number: 1; 2;

Calcium binding site 1 out of 2 in the Crystal Structure of Meganuclease I-Smami Bound to Uncleaveable Dna with A Ttgt Central Four


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 Meganuclease I-Smami Bound to Uncleaveable Dna with A Ttgt Central Four within 5.0Å range: probe atom residue distance (Å) B Occ A:Ca401 b:0.1 occ:1.00 OP2 B:DT16 1.9 0.9 1.0 O A:ALA19 2.9 0.6 1.0 OD1 A:ASP179 3.2 0.2 1.0 P B:DT16 3.2 1.0 1.0 OD2 A:ASP179 3.2 0.7 1.0 OE2 A:GLU20 3.5 0.1 1.0 CG A:ASP179 3.6 0.1 1.0 OP1 B:DT16 3.7 0.8 1.0 O5' B:DT16 3.9 0.3 1.0 OP1 C:DT14 4.1 0.4 1.0 C A:ALA19 4.1 0.5 1.0 O C:HOH201 4.4 0.1 1.0 O3' B:DA15 4.4 0.8 1.0 O3' C:DT14 4.4 0.8 1.0 CD A:GLU20 4.5 0.4 1.0 OP2 C:DC15 4.6 0.1 1.0 CA A:GLU20 4.7 0.6 1.0 N A:GLU20 4.9 0.7 1.0

Calcium binding site 2 out of 2 in the Crystal Structure of Meganuclease I-Smami Bound to Uncleaveable Dna with A Ttgt Central Four


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 2 of Crystal Structure of Meganuclease I-Smami Bound to Uncleaveable Dna with A Ttgt Central Four within 5.0Å range: probe atom residue distance (Å) B Occ D:Ca402 b:0.3 occ:1.00 O F:HOH202 2.3 0.8 1.0 OP2 E:DT16 2.3 0.3 1.0 OD1 D:ASP179 2.5 0.3 1.0 O3' F:DT14 3.1 0.3 1.0 O F:HOH201 3.1 0.2 1.0 OE2 D:GLU20 3.1 0.2 1.0 O D:HOH503 3.3 0.3 1.0 CG D:ASP179 3.3 0.6 1.0 OP2 F:DC15 3.3 0.4 1.0 OD2 D:ASP179 3.3 0.6 1.0 P E:DT16 3.5 0.4 1.0 O D:ALA19 3.6 0.4 1.0 P F:DC15 3.8 0.1 1.0 OP1 E:DT16 3.8 0.8 1.0 OP1 F:DT14 4.2 0.7 1.0 C3' F:DT14 4.2 0.9 1.0 CD D:GLU20 4.3 0.6 1.0 C4' F:DT14 4.3 0.2 1.0 O3' E:DA15 4.5 0.1 1.0 OP1 F:DC15 4.6 0.5 1.0 CB D:ASP179 4.7 0.8 1.0 O5' E:DT16 4.7 0.6 1.0 C D:ALA19 4.7 0.5 1.0 OE1 D:GLU20 4.8 0.9 1.0 C4' E:DA15 4.9 1.0 1.0 O4' F:DT14 5.0 0.3 1.0

A.R.Lambert, J.P.Hallinan, B.W.Shen, J.K.Chik, J.M.Bolduc, N.Kulshina, L.I.Robins, B.K.Kaiser, J.Jarjour, K.Havens, A.M.Scharenberg, B.L.Stoddard. Indirect Dna Sequence Recognition and Its Impact on Nuclease Cleavage Activity. Structure V. 24 862 2016.
ISSN: ISSN 0969-2126
PubMed: 27133026
DOI: 10.1016/J.STR.2016.03.024