Potassium in PDB 3b0g: Assimilatory Nitrite Reductase (NII3) From Tobbaco Leaf

All present enzymatic activity of Assimilatory Nitrite Reductase (NII3) From Tobbaco Leaf:
1.7.7.1;

The structure of Assimilatory Nitrite Reductase (NII3) From Tobbaco Leaf, PDB code: 3b0g was solved by S.Nakano, M.Takahashi, A.Sakamoto, H.Morikawa, K.Katayanagi, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	33.54 / 1.25
Space group	P 4 21 2
Cell size a, b, c (Å), α, β, γ (°)	134.051, 134.051, 77.801, 90.00, 90.00, 90.00
R / Rfree (%)	16 / 16.9

The structure of Assimilatory Nitrite Reductase (NII3) From Tobbaco Leaf also contains other interesting chemical elements:

Iron	(Fe)	5 atoms
Chlorine	(Cl)	2 atoms

The binding sites of Potassium atom in the Assimilatory Nitrite Reductase (NII3) From Tobbaco Leaf (pdb code 3b0g). This binding sites where shown within 5.0 Angstroms radius around Potassium atom.
In total only one binding site of Potassium was determined in the Assimilatory Nitrite Reductase (NII3) From Tobbaco Leaf, PDB code: 3b0g:

Potassium binding site 1 out of 1 in the Assimilatory Nitrite Reductase (NII3) From Tobbaco Leaf


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of Assimilatory Nitrite Reductase (NII3) From Tobbaco Leaf within 5.0Å range: probe atom residue distance (Å) B Occ A:K603 b:6.3 occ:1.00 OD1 A:ASN403 2.7 6.1 1.0 O A:ILE371 2.7 6.0 1.0 O A:HOH1013 2.7 7.1 1.0 O A:HOH1027 2.8 8.0 1.0 O A:GLU401 2.9 6.0 1.0 O A:GLN402 2.9 5.7 1.0 O A:HOH1042 3.0 7.9 1.0 CG A:ASN403 3.4 5.8 1.0 C A:GLN402 3.4 5.7 1.0 C A:ILE371 3.8 6.3 1.0 ND2 A:ASN403 3.8 6.6 1.0 O A:LEU437 3.9 7.1 1.0 CB A:GLN402 3.9 5.8 1.0 N A:GLY374 3.9 6.5 1.0 N A:VAL373 4.0 6.8 1.0 C A:GLU401 4.0 5.7 1.0 ND1 A:HIS370 4.0 8.3 1.0 N A:ASN403 4.1 5.5 1.0 CA A:GLN402 4.1 5.7 1.0 CE1 A:HIS370 4.1 5.8 1.0 N A:ILE371 4.2 6.0 1.0 CA A:VAL373 4.4 7.3 1.0 CA A:ASN403 4.4 5.8 1.0 CA A:ILE371 4.5 6.3 1.0 N A:GLN402 4.5 5.6 1.0 CB A:ASN403 4.5 6.3 1.0 C A:VAL373 4.6 6.8 1.0 C A:PRO372 4.6 6.8 1.0 CA A:GLY374 4.7 6.5 1.0 N A:PRO372 4.7 6.5 1.0 CB A:ILE371 4.7 6.2 1.0 CA A:PRO372 4.7 6.7 1.0 OE1 A:GLN402 4.8 6.3 1.0

S.Nakano, M.Takahashi, A.Sakamoto, H.Morikawa, K.Katayanagi. Structure-Function Relationship of Assimilatory Nitrite Reductases From the Leaf and Root of Tobacco Based on High Resolution Structures Protein Sci. V. 21 383 2012.
ISSN: ISSN 0961-8368
PubMed: 22238192
DOI: 10.1002/PRO.2025