Zinc in PDB 1r23: Crystal Structure of the Cyanobacterial Metallothionein Repressor Smtb in the ZN1-Form (One Zn(II) Per Dimer)

The structure of Crystal Structure of the Cyanobacterial Metallothionein Repressor Smtb in the ZN1-Form (One Zn(II) Per Dimer), PDB code: 1r23 was solved by C.Eicken, M.A.Pennella, X.Chen, K.M.Koshlap, M.L.Vanzile, J.C.Sacchettini, D.P.Giedroc, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	60.00 / 2.00
Space group	P 1 21 1
Cell size a, b, c (Å), α, β, γ (°)	36.996, 70.370, 42.685, 90.00, 95.50, 90.00
R / Rfree (%)	20.4 / 23.6

The binding sites of Zinc atom in the Crystal Structure of the Cyanobacterial Metallothionein Repressor Smtb in the ZN1-Form (One Zn(II) Per Dimer) (pdb code 1r23). This binding sites where shown within 5.0 Angstroms radius around Zinc atom.
In total only one binding site of Zinc was determined in the Crystal Structure of the Cyanobacterial Metallothionein Repressor Smtb in the ZN1-Form (One Zn(II) Per Dimer), PDB code: 1r23:

Zinc binding site 1 out of 1 in the Crystal Structure of the Cyanobacterial Metallothionein Repressor Smtb in the ZN1-Form (One Zn(II) Per Dimer)


Mono view


Stereo pair view

A full contact list of Zinc with other atoms in the Zn binding site number 1 of Crystal Structure of the Cyanobacterial Metallothionein Repressor Smtb in the ZN1-Form (One Zn(II) Per Dimer) within 5.0Å range: probe atom residue distance (Å) B Occ B:Zn501 b:55.3 occ:1.00 OE1 B:GLU120 1.9 59.0 1.0 OD2 A:ASP104 2.0 32.9 1.0 ND1 A:HIS106 2.5 21.4 1.0 ND1 B:HIS117 2.6 24.0 1.0 CG A:ASP104 2.6 19.2 1.0 CD B:GLU120 3.0 57.4 1.0 OD1 A:ASP104 3.0 21.1 1.0 CA B:HIS117 3.3 25.5 1.0 CG B:HIS117 3.4 23.3 1.0 CB B:HIS117 3.4 23.8 1.0 CE1 A:HIS106 3.5 21.9 1.0 CG A:HIS106 3.5 21.3 1.0 CG B:GLU120 3.6 56.1 1.0 CE1 B:HIS117 3.6 23.9 1.0 CB A:HIS106 3.7 19.4 1.0 CB A:ASP104 3.8 21.2 1.0 OE2 B:GLU120 3.9 58.4 1.0 O B:HIS117 4.1 27.4 1.0 C B:HIS117 4.2 27.3 1.0 N B:HIS117 4.3 24.4 1.0 CD2 B:HIS117 4.6 25.7 1.0 NE2 A:HIS106 4.6 22.5 1.0 CD2 A:HIS106 4.7 20.4 1.0 NE2 B:HIS117 4.7 24.0 1.0 O B:ASP116 4.8 27.0 1.0 N A:HIS106 4.9 18.0 1.0 C B:ASP116 4.9 26.4 1.0 CA A:HIS106 4.9 18.1 1.0

C.Eicken, M.A.Pennella, X.Chen, K.M.Koshlap, M.L.Vanzile, J.C.Sacchettini, D.P.Giedroc. A Metal-Ligand-Mediated Intersubunit Allosteric Switch in Related Smtb/Arsr Zinc Sensor Proteins. J.Mol.Biol. V. 333 683 2003.
ISSN: ISSN 0022-2836
PubMed: 14568530
DOI: 10.1016/J.JMB.2003.09.007