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Calcium in PDB 2g18: Crystal Structure of Nostoc Sp. 7120 Phycocyanobilin:Ferredoxin Oxidoreductase (Pcya) Apoprotein

Enzymatic activity of Crystal Structure of Nostoc Sp. 7120 Phycocyanobilin:Ferredoxin Oxidoreductase (Pcya) Apoprotein

All present enzymatic activity of Crystal Structure of Nostoc Sp. 7120 Phycocyanobilin:Ferredoxin Oxidoreductase (Pcya) Apoprotein:
1.3.7.5;

Protein crystallography data

The structure of Crystal Structure of Nostoc Sp. 7120 Phycocyanobilin:Ferredoxin Oxidoreductase (Pcya) Apoprotein, PDB code: 2g18 was solved by S.-L.Tu, J.C.Lagarias, A.J.Fisher, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å) 43.94 / 2.50
Space group P 1 21 1
Cell size a, b, c (Å), α, β, γ (°) 78.501, 141.332, 121.842, 90.00, 91.29, 90.00
R / Rfree (%) 21.1 / 25.7

Calcium Binding Sites:

The binding sites of Calcium atom in the Crystal Structure of Nostoc Sp. 7120 Phycocyanobilin:Ferredoxin Oxidoreductase (Pcya) Apoprotein (pdb code 2g18). 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 Crystal Structure of Nostoc Sp. 7120 Phycocyanobilin:Ferredoxin Oxidoreductase (Pcya) Apoprotein, PDB code: 2g18:

Calcium binding site 1 out of 1 in 2g18

Go back to Calcium Binding Sites List in 2g18
Calcium binding site 1 out of 1 in the Crystal Structure of Nostoc Sp. 7120 Phycocyanobilin:Ferredoxin Oxidoreductase (Pcya) Apoprotein


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 Nostoc Sp. 7120 Phycocyanobilin:Ferredoxin Oxidoreductase (Pcya) Apoprotein within 5.0Å range:
probe atom residue distance (Å) B Occ
E:Ca246

b:23.4
occ:0.50
 OE2 D:GLU47 2.1 65.0 1.0
O D:HOH273 2.1 23.0 1.0
O D:HOH272 2.2 23.0 1.0
OE2 E:GLU47 2.2 69.5 1.0
O D:HOH274 2.3 23.0 1.0
OE1 D:GLU47 2.5 69.5 1.0
O E:HOH264 2.5 23.3 1.0
CD D:GLU47 2.6 64.5 1.0
CD E:GLU47 2.9 68.4 1.0
OE1 E:GLU47 2.9 73.5 1.0
NZ E:LYS54 3.4 70.3 1.0
NZ D:LYS54 3.5 70.1 1.0
CG D:GLU47 4.1 59.0 1.0
CG E:GLU47 4.4 59.2 1.0
CE D:LYS54 4.6 67.5 1.0
CE E:LYS54 4.6 64.9 1.0
CE2 E:TYR45 4.7 55.0 1.0
OH E:TYR45 4.8 55.7 1.0
CE2 D:TYR45 4.8 55.0 1.0
CB D:GLU47 5.0 53.2 1.0

Reference:

S.L.Tu, N.C.Rockwell, J.C.Lagarias, A.J.Fisher. Insight Into the Radical Mechanism of Phycocyanobilin-Ferredoxin Oxidoreductase (Pcya) Revealed By X-Ray Crystallography and Biochemical Measurements. Biochemistry V. 46 1484 2007.
ISSN: ISSN 0006-2960
PubMed: 17279614
DOI: 10.1021/BI062038F
Page generated: Tue Jul 8 05:40:36 2025

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