Zinc in PDB 3mkg: Low pH As-Isolated Tomato Chloroplast Superoxide Dismutase

All present enzymatic activity of Low pH As-Isolated Tomato Chloroplast Superoxide Dismutase:
1.15.1.1;

The structure of Low pH As-Isolated Tomato Chloroplast Superoxide Dismutase, PDB code: 3mkg was solved by A.Galaleldeen, A.B.Taylor, P.J.Hart, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	31.45 / 2.20
Space group	P 21 21 2
Cell size a, b, c (Å), α, β, γ (°)	64.993, 104.798, 35.939, 90.00, 90.00, 90.00
R / Rfree (%)	21.4 / 26

The binding sites of Zinc atom in the Low pH As-Isolated Tomato Chloroplast Superoxide Dismutase (pdb code 3mkg). This binding sites where shown within 5.0 Angstroms radius around Zinc atom.
In total 2 binding sites of Zinc where determined in the Low pH As-Isolated Tomato Chloroplast Superoxide Dismutase, PDB code: 3mkg:
Jump to Zinc binding site number: 1; 2;

Zinc binding site 1 out of 2 in the Low pH As-Isolated Tomato Chloroplast Superoxide Dismutase


Mono view


Stereo pair view

A full contact list of Zinc with other atoms in the Zn binding site number 1 of Low pH As-Isolated Tomato Chloroplast Superoxide Dismutase within 5.0Å range: probe atom residue distance (Å) B Occ A:Zn155 b:29.9 occ:1.00 NE2 A:HIS48 2.1 26.6 1.0 NE2 A:HIS120 2.1 25.8 1.0 ND1 A:HIS46 2.2 28.9 1.0 O A:HOH188 2.3 26.1 1.0 CD2 A:HIS120 3.0 24.6 1.0 CE1 A:HIS48 3.0 28.1 1.0 CD2 A:HIS48 3.1 24.0 1.0 CG A:HIS46 3.2 30.6 1.0 CE1 A:HIS120 3.2 28.0 1.0 CE1 A:HIS46 3.2 30.1 1.0 CB A:HIS46 3.4 28.0 1.0 CG A:HIS120 4.2 28.5 1.0 ND1 A:HIS48 4.2 27.6 1.0 ND1 A:HIS120 4.2 30.1 1.0 CG A:HIS48 4.3 25.4 1.0 NE2 A:HIS46 4.3 31.8 1.0 CB A:HIS63 4.3 36.2 1.0 CD2 A:HIS46 4.3 30.7 1.0 CG1 A:VAL118 4.8 20.2 1.0 CA A:HIS46 4.9 27.7 1.0 CB A:VAL118 4.9 20.4 1.0 CA A:HIS63 4.9 34.3 1.0

Zinc binding site 2 out of 2 in the Low pH As-Isolated Tomato Chloroplast Superoxide Dismutase


Mono view


Stereo pair view

A full contact list of Zinc with other atoms in the Zn binding site number 2 of Low pH As-Isolated Tomato Chloroplast Superoxide Dismutase within 5.0Å range: probe atom residue distance (Å) B Occ B:Zn155 b:29.4 occ:1.00 NE2 B:HIS120 2.1 25.1 1.0 NE2 B:HIS48 2.2 23.2 1.0 ND1 B:HIS46 2.2 26.2 1.0 O B:HOH157 2.4 20.0 1.0 CD2 B:HIS120 3.0 24.2 1.0 CE1 B:HIS48 3.1 24.8 1.0 CE1 B:HIS120 3.1 28.6 1.0 CE1 B:HIS46 3.2 30.2 1.0 CD2 B:HIS48 3.2 25.0 1.0 CG B:HIS46 3.2 30.3 1.0 CB B:HIS46 3.5 29.1 1.0 CG B:HIS120 4.2 31.5 1.0 ND1 B:HIS120 4.2 28.8 1.0 ND1 B:HIS48 4.2 28.0 1.0 NE2 B:HIS46 4.3 32.8 1.0 CG B:HIS48 4.3 26.1 1.0 CD2 B:HIS46 4.4 33.8 1.0 ND1 B:HIS63 4.4 46.2 1.0 CB B:HIS63 4.7 34.3 1.0 CG B:HIS63 4.8 41.5 1.0 CG1 B:VAL118 4.8 22.2 1.0 CB B:VAL118 4.9 18.5 1.0 CA B:HIS63 4.9 32.9 1.0 CA B:HIS46 5.0 27.9 1.0

A.Galaleldeen, A.B.Taylor, P.J.Hart. Biophysical Properties of Tomato Chloroplast Sod To Be Published.