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Sodium in the structure of Alpha-Amylase B in Complex With Acarbose (pdb 3bc9)

The binding sites of Sodium atom in the structure of Alpha-Amylase B in Complex With Acarbose (pdb code 3bc9). This binding sites where shown with 5.0 Angstroms radius around Sodium atom.
The 3bc9 structure was solved by T.-C.TAN, B.N.MIJTS, K.SWAMINATHAN, B.K.C.PATEL, C.DIVNE, with X-Ray Crystallography technique, brief refinement statistics is given in the table below:
Resolution (A)30.0-1.4
Space groupC121
a (A)227.850
b (A)77.240
c (A)50.380
alpha (°)90.00
beta (°)98.63
gamma (°)90.00
Rfactor (%)15.1
Rfree (%)17.8

Sodium Binding Sites:

Sodium binding site 1 out of 1 in 3bc9

Sodium binding site 1 out of 1 in 3bc9
Click to enlarge
stereopicture of Sodium binding site 1 out of 1 in 3bc9
Click to enlarge
Mono- and Stereo- picture of 5.0 Angstrom coordination sphere 1 of Sodium in the PDB 3bc9. Coordination sphere was calculated for all residues within 5.0 Angstroms distance from the central Sodium atom, shown by VdW sphere
Residues shown as a stick model or VDW spheres: A: Asp283, A: Trp304, A: Asp305, A: Asp313, A: Asp319, A: Val320, A: Asp321, A: Tyr322, A: Ca701, A: Ca702, A: Hoh1023, A: Hoh1029,

conact list:

AtomAtomDistance (A)
NaN A:Asp2834.86
NaCB A:Asp2833.79
NaOD2 A:Asp2832.32
NaOD1 A:Asp2834.46
NaCG A:Asp2833.31
NaCA A:Asp2834.95
NaCE3 A:Trp3044.67
NaN A:Asp3054.27
NaCB A:Asp3054.00
NaOD2 A:Asp3052.61
NaOD1 A:Asp3053.92
NaCG A:Asp3053.22
NaCA A:Asp3054.79
NaCB A:Asp3134.45
NaOD2 A:Asp3132.30
NaOD1 A:Asp3133.06
NaCG A:Asp3133.00
NaO A:Asp3194.36
NaCB A:Asp3194.49
NaOD2 A:Asp3192.27
NaC A:Asp3194.46
NaOD1 A:Asp3194.16
NaCG A:Asp3193.42
NaO A:Val3202.38
NaN A:Val3204.48
NaC A:Val3203.45
NaCA A:Val3204.60
NaN A:Asp3214.07
NaCB A:Asp3214.91
NaC A:Asp3214.71
NaOD1 A:Asp3214.99
NaCA A:Asp3213.91
NaN A:Tyr3224.42
NaCA A:Ca7014.47
NaCA A:Ca7024.26
NaO A:Hoh10233.51
NaO A:Hoh10293.77

interactive model:

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