Sodium in PDB 4r9i: Crystal Structure of Cysteine Proteinase Inhibitor SERPIN18 From Bombyx Mori

The structure of Crystal Structure of Cysteine Proteinase Inhibitor SERPIN18 From Bombyx Mori, PDB code: 4r9i was solved by P.C.Guo, H.W.He, P.Zhao, Q.Y.Xia, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	40.57 / 1.65
Space group	P 41 21 2
Cell size a, b, c (Å), α, β, γ (°)	109.301, 109.301, 72.545, 90.00, 90.00, 90.00
R / Rfree (%)	17.7 / 20.7

The binding sites of Sodium atom in the Crystal Structure of Cysteine Proteinase Inhibitor SERPIN18 From Bombyx Mori (pdb code 4r9i). This binding sites where shown within 5.0 Angstroms radius around Sodium atom.
In total only one binding site of Sodium was determined in the Crystal Structure of Cysteine Proteinase Inhibitor SERPIN18 From Bombyx Mori, PDB code: 4r9i:

Sodium binding site 1 out of 1 in the Crystal Structure of Cysteine Proteinase Inhibitor SERPIN18 From Bombyx Mori


Mono view


Stereo pair view

A full contact list of Sodium with other atoms in the Na binding site number 1 of Crystal Structure of Cysteine Proteinase Inhibitor SERPIN18 From Bombyx Mori within 5.0Å range: probe atom residue distance (Å) B Occ A:Na401 b:19.5 occ:1.00 O A:HOH501 2.3 18.6 1.0 O A:THR286 2.3 18.1 1.0 OB1 A:FLC402 2.4 19.3 1.0 OG2 A:FLC402 2.4 24.5 1.0 O A:THR284 2.5 16.4 1.0 CBC A:FLC402 3.3 20.2 1.0 C A:THR284 3.4 15.5 1.0 C A:THR286 3.5 16.3 1.0 CGC A:FLC402 3.6 24.4 1.0 OHB A:FLC402 3.7 19.9 1.0 NZ A:LYS232 3.8 24.7 1.0 CB A:FLC402 3.9 19.4 1.0 CA A:THR284 4.0 16.2 1.0 N A:THR286 4.1 15.8 1.0 OB2 A:FLC402 4.2 20.4 1.0 C A:GLN285 4.2 15.6 1.0 CE A:LYS232 4.3 20.8 1.0 N A:GLN285 4.3 14.5 1.0 CG A:FLC402 4.4 20.1 1.0 CA A:THR286 4.4 16.3 1.0 N A:GLU287 4.5 16.8 1.0 OG1 A:THR286 4.5 15.8 1.0 CA A:GLU287 4.6 17.5 1.0 OG1 A:FLC402 4.6 24.9 1.0 O A:LEU283 4.6 16.1 1.0 O A:GLN285 4.6 15.7 1.0 CA A:GLN285 4.6 15.2 1.0 CG A:GLU287 4.7 19.8 1.0 CB A:THR284 4.8 16.2 1.0

P.C.Guo, Z.Dong, P.Zhao, Y.Zhang, H.W.He, X.Tan, W.Zhang, Q.Y.Xia. Structural Insights Into the Unique Inhibitory Mechanism of the Silkworm Protease Inhibitor SERPIN18 Sci Rep V. 5 11863 2015.
ISSN: ESSN 2045-2322
PubMed: 26148664
DOI: 10.1038/SREP11863