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Zinc in PDB 2qgf: Structure of Regulatory Chain Mutant H20A of Asparate Transcarbamoylase From E. Coli

Enzymatic activity of Structure of Regulatory Chain Mutant H20A of Asparate Transcarbamoylase From E. Coli

All present enzymatic activity of Structure of Regulatory Chain Mutant H20A of Asparate Transcarbamoylase From E. Coli:
2.1.3.2;

Protein crystallography data

The structure of Structure of Regulatory Chain Mutant H20A of Asparate Transcarbamoylase From E. Coli, PDB code: 2qgf was solved by B.Stec, M.K.Williams, K.A.Stieglitz, E.R.Kantrowitz, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å) 35.00 / 2.20
Space group P 3 2 1
Cell size a, b, c (Å), α, β, γ (°) 122.280, 122.280, 142.490, 90.00, 90.00, 120.00
R / Rfree (%) 19.7 / 22.3

Zinc Binding Sites:

The binding sites of Zinc atom in the Structure of Regulatory Chain Mutant H20A of Asparate Transcarbamoylase From E. Coli (pdb code 2qgf). This binding sites where shown within 5.0 Angstroms radius around Zinc atom.
In total 2 binding sites of Zinc where determined in the Structure of Regulatory Chain Mutant H20A of Asparate Transcarbamoylase From E. Coli, PDB code: 2qgf:
Jump to Zinc binding site number: 1; 2;

Zinc binding site 1 out of 2 in 2qgf

Go back to Zinc Binding Sites List in 2qgf
Zinc binding site 1 out of 2 in the Structure of Regulatory Chain Mutant H20A of Asparate Transcarbamoylase From E. Coli


Mono view


Stereo pair view

A full contact list of Zinc with other atoms in the Zn binding site number 1 of Structure of Regulatory Chain Mutant H20A of Asparate Transcarbamoylase From E. Coli within 5.0Å range:
probe atom residue distance (Å) B Occ
B:Zn160

b:19.9
occ:1.00
SG B:CYS114 2.3 15.3 1.0
SG B:CYS141 2.3 19.9 1.0
SG B:CYS138 2.3 14.1 1.0
SG B:CYS109 2.3 14.6 1.0
CB B:CYS138 3.1 17.3 1.0
CB B:CYS114 3.1 21.2 1.0
CB B:CYS109 3.2 15.0 1.0
CB B:CYS141 3.4 10.6 1.0
N B:CYS141 3.7 8.7 1.0
CA B:CYS141 4.1 9.4 1.0
OG B:SER116 4.4 19.4 1.0
CA B:CYS114 4.4 19.0 1.0
CB B:ASN111 4.4 16.3 1.0
CA B:CYS138 4.5 18.1 1.0
ND2 B:ASN111 4.6 13.2 1.0
CA B:CYS109 4.6 22.6 1.0
CB B:TYR140 4.7 17.9 1.0
C B:TYR140 4.8 9.9 1.0
N B:TYR140 4.9 17.0 1.0
CB B:SER116 4.9 21.2 1.0
C B:CYS141 4.9 11.4 1.0
N B:GLU142 5.0 16.8 1.0
CA B:TYR140 5.0 11.2 1.0

Zinc binding site 2 out of 2 in 2qgf

Go back to Zinc Binding Sites List in 2qgf
Zinc binding site 2 out of 2 in the Structure of Regulatory Chain Mutant H20A of Asparate Transcarbamoylase From E. Coli


Mono view


Stereo pair view

A full contact list of Zinc with other atoms in the Zn binding site number 2 of Structure of Regulatory Chain Mutant H20A of Asparate Transcarbamoylase From E. Coli within 5.0Å range:
probe atom residue distance (Å) B Occ
D:Zn160

b:21.3
occ:1.00
SG D:CYS141 2.3 12.9 1.0
SG D:CYS114 2.3 12.9 1.0
SG D:CYS138 2.3 14.3 1.0
SG D:CYS109 2.4 16.0 1.0
CB D:CYS138 3.1 9.5 1.0
CB D:CYS114 3.1 10.4 1.0
CB D:CYS109 3.2 12.7 1.0
CB D:CYS141 3.3 21.3 1.0
N D:CYS141 3.7 4.8 1.0
CA D:CYS141 4.1 8.8 1.0
CB D:ASN111 4.3 15.5 1.0
CA D:CYS114 4.4 10.4 1.0
ND2 D:ASN111 4.5 25.5 1.0
OG D:SER116 4.5 17.6 1.0
CA D:CYS138 4.6 13.7 1.0
CA D:CYS109 4.6 15.5 1.0
CB D:TYR140 4.7 12.6 1.0
C D:TYR140 4.9 6.8 1.0
CG D:ASN111 4.9 23.4 1.0
C D:CYS141 5.0 13.3 1.0

Reference:

B.Stec, M.K.Williams, K.A.Stieglitz, E.R.Kantrowitz. Comparison of Two T-State Structures of Regulatory-Chain Mutants of Escherichia Coli Aspartate Transcarbamoylase Suggests That HIS20 and ASP19 Modulate the Response to Heterotropic Effectors. Acta Crystallogr.,Sect.D V. 63 1243 2007.
ISSN: ISSN 0907-4449
PubMed: 18084072
DOI: 10.1107/S0907444907052985
Page generated: Wed Dec 16 03:50:23 2020

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