Potassium in PDB 2ann: Crystal Structure (I) of Nova-1 KH1/KH2 Domain Tandem with 25 Nt Rna Hairpin

The structure of Crystal Structure (I) of Nova-1 KH1/KH2 Domain Tandem with 25 Nt Rna Hairpin, PDB code: 2ann was solved by L.Malinina, M.Teplova, K.Musunuru, A.Teplov, J.C.Darnell, S.K.Burley, R.B.Darnell, D.J.Patel, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	20.00 / 2.30
Space group	C 1 2 1
Cell size a, b, c (Å), α, β, γ (°)	155.304, 37.147, 34.825, 90.00, 94.42, 90.00
R / Rfree (%)	19.3 / 24.9

The structure of Crystal Structure (I) of Nova-1 KH1/KH2 Domain Tandem with 25 Nt Rna Hairpin also contains other interesting chemical elements:

Magnesium

(Mg)

2 atoms

The binding sites of Potassium atom in the Crystal Structure (I) of Nova-1 KH1/KH2 Domain Tandem with 25 Nt Rna Hairpin (pdb code 2ann). 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 Crystal Structure (I) of Nova-1 KH1/KH2 Domain Tandem with 25 Nt Rna Hairpin, PDB code: 2ann:

Potassium binding site 1 out of 1 in the Crystal Structure (I) of Nova-1 KH1/KH2 Domain Tandem with 25 Nt Rna Hairpin


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of Crystal Structure (I) of Nova-1 KH1/KH2 Domain Tandem with 25 Nt Rna Hairpin within 5.0Å range: probe atom residue distance (Å) B Occ B:K301 b:20.4 occ:0.50 O B:HOH306 2.4 13.8 1.0 O6 B:G6 2.5 14.6 1.0 O B:HOH314 2.5 22.0 1.0 O B:HOH307 2.6 25.4 1.0 O6 B:G7 2.6 26.5 1.0 O B:HOH304 2.8 11.2 1.0 O B:HOH308 3.1 25.9 1.0 MG B:MG302 3.1 14.2 0.5 C6 B:G6 3.5 19.0 1.0 C6 B:G7 3.6 23.1 1.0 MG B:MG303 3.7 4.7 0.5 N7 B:G6 3.7 19.9 1.0 O B:HOH313 3.8 15.3 1.0 N1 B:G7 3.9 21.9 1.0 C5 B:G6 4.0 19.2 1.0 OP2 B:C5 4.1 24.3 1.0 OP1 B:C17 4.4 26.7 1.0 O B:HOH310 4.6 17.3 1.0 OP2 B:C18 4.6 26.6 1.0 OP2 B:C17 4.7 23.1 1.0 N1 B:G6 4.7 19.0 1.0 C5 B:C5 4.8 17.3 1.0 C5 B:G7 4.8 21.9 1.0 OP2 B:G4 5.0 24.0 1.0 P B:C17 5.0 27.5 1.0

M.Teplova, L.Malinina, J.C.Darnell, J.Song, M.Lu, R.Abagyan, K.Musunuru, A.Teplov, S.K.Burley, R.B.Darnell, D.J.Patel. Protein-Rna and Protein-Protein Recognition By Dual KH1/2 Domains of the Neuronal Splicing Factor Nova-1. Structure V. 19 930 2011.
ISSN: ISSN 0969-2126
PubMed: 21742260
DOI: 10.1016/J.STR.2011.05.002