Potassium in PDB 2qa4: A More Complete Structure of the the L7/L12 Stalk of the Haloarcula Marismortui 50S Large Ribosomal Subunit

The structure of A More Complete Structure of the the L7/L12 Stalk of the Haloarcula Marismortui 50S Large Ribosomal Subunit, PDB code: 2qa4 was solved by T.A.Steitz, J.M.Kavran, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	50.00 / 3.00
Space group	C 2 2 21
Cell size a, b, c (Å), α, β, γ (°)	214.490, 302.432, 578.056, 90.00, 90.00, 90.00
R / Rfree (%)	24.1 / 28.8

The structure of A More Complete Structure of the the L7/L12 Stalk of the Haloarcula Marismortui 50S Large Ribosomal Subunit also contains other interesting chemical elements:

Magnesium	(Mg)	116 atoms
Cadmium	(Cd)	5 atoms
Chlorine	(Cl)	22 atoms
Sodium	(Na)	86 atoms

The binding sites of Potassium atom in the A More Complete Structure of the the L7/L12 Stalk of the Haloarcula Marismortui 50S Large Ribosomal Subunit (pdb code 2qa4). This binding sites where shown within 5.0 Angstroms radius around Potassium atom.
In total 2 binding sites of Potassium where determined in the A More Complete Structure of the the L7/L12 Stalk of the Haloarcula Marismortui 50S Large Ribosomal Subunit, PDB code: 2qa4:
Jump to Potassium binding site number: 1; 2;

Potassium binding site 1 out of 2 in the A More Complete Structure of the the L7/L12 Stalk of the Haloarcula Marismortui 50S Large Ribosomal Subunit


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of A More Complete Structure of the the L7/L12 Stalk of the Haloarcula Marismortui 50S Large Ribosomal Subunit within 5.0Å range: probe atom residue distance (Å) B Occ 0:K3031 b:0.2 occ:1.00 O6 0:G2482 2.4 46.6 1.0 O6 0:G2102 2.5 81.9 1.0 C6 0:G2482 3.4 48.5 1.0 C6 0:G2102 3.5 82.8 1.0 N7 0:G2482 3.6 51.5 1.0 O2 0:U2535 3.7 56.3 1.0 C5 0:G2482 3.8 50.6 1.0 C2 0:U2535 4.0 56.2 1.0 N7 0:G2102 4.0 82.8 1.0 OP1 0:U2539 4.1 41.4 1.0 N6 0:A2486 4.1 61.6 1.0 C5 0:G2102 4.1 83.3 1.0 N3 0:U2535 4.3 57.1 1.0 O4' 0:C2536 4.4 57.7 1.0 O2 0:C2536 4.4 54.9 1.0 C2' 0:U2535 4.6 55.2 1.0 N1 0:U2535 4.6 56.0 1.0 N1 0:G2482 4.6 48.0 1.0 N1 0:G2102 4.7 82.9 1.0 C2 0:C2536 4.8 56.4 1.0 C1' 0:C2536 4.8 56.6 1.0 C8 0:G2482 4.9 51.1 1.0 N1 0:C2536 4.9 57.4 1.0

Potassium binding site 2 out of 2 in the A More Complete Structure of the the L7/L12 Stalk of the Haloarcula Marismortui 50S Large Ribosomal Subunit


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 2 of A More Complete Structure of the the L7/L12 Stalk of the Haloarcula Marismortui 50S Large Ribosomal Subunit within 5.0Å range: probe atom residue distance (Å) B Occ M:K196 b:0.9 occ:1.00 O4 0:U172 2.9 51.5 1.0 CD M:ARG82 2.9 0.3 1.0 NE M:ARG82 3.5 0.3 1.0 C4 0:U172 4.0 49.3 1.0 OP2 0:C162 4.0 38.1 1.0 N4 0:C171 4.1 60.5 1.0 CG M:ARG82 4.1 0.7 1.0 O4 0:U163 4.2 44.5 1.0 OP1 0:A169 4.2 42.1 1.0 OP2 0:U170 4.3 55.7 1.0 CB M:ARG82 4.4 0.6 1.0 OP2 0:A169 4.5 40.5 1.0 CZ M:ARG82 4.5 0.8 1.0 N3 0:U172 4.6 49.0 1.0 P 0:A169 4.7 41.5 1.0

J.M.Kavran, T.A.Steitz. Structure of the Base of the L7/L12 Stalk of the Haloarcula Marismortui Large Ribosomal Subunit: Analysis of L11 Movements J.Mol.Biol. V. 371 1047 2007.
ISSN: ISSN 0022-2836
PubMed: 17599351
DOI: 10.1016/J.JMB.2007.05.091