Sodium in PDB 7ddl: Crystal Structures of Na+,K+-Atpase in Complex with Bufalin

Enzymatic activity of Crystal Structures of Na+,K+-Atpase in Complex with Bufalin

All present enzymatic activity of Crystal Structures of Na+,K+-Atpase in Complex with Bufalin:
7.2.2.13;

Protein crystallography data

The structure of Crystal Structures of Na+,K+-Atpase in Complex with Bufalin, PDB code: 7ddl was solved by H.Ogawa, F.Cornelius, R.Kanai, K.Motoyama, B.Vilsen, C.Toyoshima, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å) 14.99 / 3.20
Space group P 21 21 21
Cell size a, b, c (Å), α, β, γ (°) 115.721, 117.646, 492.068, 90, 90, 90
R / Rfree (%) 24.1 / 28.1

Other elements in 7ddl:

The structure of Crystal Structures of Na+,K+-Atpase in Complex with Bufalin also contains other interesting chemical elements:

Magnesium (Mg) 4 atoms

Sodium Binding Sites:

The binding sites of Sodium atom in the Crystal Structures of Na+,K+-Atpase in Complex with Bufalin (pdb code 7ddl). This binding sites where shown within 5.0 Angstroms radius around Sodium atom.
In total 2 binding sites of Sodium where determined in the Crystal Structures of Na+,K+-Atpase in Complex with Bufalin, PDB code: 7ddl:
Jump to Sodium binding site number: 1; 2;

Sodium binding site 1 out of 2 in 7ddl

Go back to Sodium Binding Sites List in 7ddl
Sodium binding site 1 out of 2 in the Crystal Structures of Na+,K+-Atpase in Complex with Bufalin


Mono view


Stereo pair view

A full contact list of Sodium with other atoms in the Na binding site number 1 of Crystal Structures of Na+,K+-Atpase in Complex with Bufalin within 5.0Å range:
probe atom residue distance (Å) B Occ
A:Na1102

b:15.9
occ:1.00
OD2 A:ASP740 2.4 106.1 1.0
CG A:ASP740 3.2 106.6 1.0
OD1 A:ASP740 3.2 106.6 1.0
O A:LYS719 3.3 85.6 1.0
O A:GLY272 3.6 127.2 1.0
O A:ALA721 3.8 77.7 1.0
CA A:GLY272 4.0 142.7 1.0
C A:GLY272 4.3 130.2 1.0
C A:LYS719 4.3 92.6 1.0
O A:SER718 4.4 86.6 1.0
CB A:ASP740 4.6 104.2 1.0
O A:ASP722 4.7 91.6 1.0
CA A:LYS719 4.7 89.2 1.0
CD A:LYS719 5.0 115.2 1.0

Sodium binding site 2 out of 2 in 7ddl

Go back to Sodium Binding Sites List in 7ddl
Sodium binding site 2 out of 2 in the Crystal Structures of Na+,K+-Atpase in Complex with Bufalin


Mono view


Stereo pair view

A full contact list of Sodium with other atoms in the Na binding site number 2 of Crystal Structures of Na+,K+-Atpase in Complex with Bufalin within 5.0Å range:
probe atom residue distance (Å) B Occ
C:Na1102

b:15.9
occ:1.00
OD2 C:ASP740 2.4 64.7 1.0
OD1 C:ASP740 3.1 52.0 1.0
CG C:ASP740 3.1 56.1 1.0
O C:LYS719 3.2 97.8 1.0
O C:GLY272 3.7 121.1 1.0
O C:ALA721 3.8 108.9 1.0
CA C:GLY272 4.1 113.3 1.0
C C:LYS719 4.3 113.1 1.0
C C:GLY272 4.4 120.8 1.0
O C:SER718 4.5 110.3 1.0
CB C:ASP740 4.6 48.9 1.0
O C:ASP722 4.7 86.5 1.0
CA C:LYS719 4.7 111.0 1.0
O C:ALA738 5.0 71.3 1.0

Reference:

R.Kanai, F.Cornelius, H.Ogawa, K.Motoyama, B.Vilsen, C.Toyoshima. Binding of Cardiotonic Steroids to Na + ,K + -Atpase in the E2P State. Proc.Natl.Acad.Sci.Usa V. 118 2021.
ISSN: ESSN 1091-6490
PubMed: 33318128
DOI: 10.1073/PNAS.2020438118
Page generated: Wed Mar 3 15:34:14 2021

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