Potassium in PDB 6ylo: MTURQUOISE2 - Directionality of Optical Properties of Fluorescent Proteins

The structure of MTURQUOISE2 - Directionality of Optical Properties of Fluorescent Proteins, PDB code: 6ylo was solved by J.Myskova, O.Rybakova, J.Brynda, J.Lazar, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	58.92 / 1.70
Space group	C 2 2 21
Cell size a, b, c (Å), α, β, γ (°)	60.820, 90.550, 117.850, 90.00, 90.00, 90.00
R / Rfree (%)	17.9 / 20.5

The binding sites of Potassium atom in the MTURQUOISE2 - Directionality of Optical Properties of Fluorescent Proteins (pdb code 6ylo). 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 MTURQUOISE2 - Directionality of Optical Properties of Fluorescent Proteins, PDB code: 6ylo:

Potassium binding site 1 out of 1 in the MTURQUOISE2 - Directionality of Optical Properties of Fluorescent Proteins


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of MTURQUOISE2 - Directionality of Optical Properties of Fluorescent Proteins within 5.0Å range: probe atom residue distance (Å) B Occ A:K301 b:50.1 occ:1.00 O A:HOH515 1.7 28.9 1.0 O A:HOH420 1.9 30.1 1.0 O A:HOH539 2.0 42.1 1.0 O A:HOH526 3.2 27.2 1.0 O A:LEU141 3.4 30.3 1.0 CB A:PRO56 3.7 20.6 1.0 CA A:PRO56 4.1 21.8 1.0 CG A:PRO56 4.2 21.0 1.0 ND1 A:HIS139 4.2 30.2 1.0 O A:HIS139 4.3 29.2 1.0 N A:LEU141 4.3 26.8 1.0 C A:LEU141 4.3 27.7 1.0 C A:HIS139 4.3 31.4 1.0 CA A:HIS139 4.4 28.2 1.0 CB A:HIS139 4.4 29.7 1.0 O A:HOH508 4.5 28.9 1.0 CB A:LEU141 4.5 25.5 1.0 CA A:LEU141 4.6 26.5 1.0 CD A:PRO58 4.7 21.0 1.0 CG A:HIS139 4.8 29.8 1.0 N A:LYS140 4.9 28.0 1.0

J.Myskova, O.Rybakova, J.Brynda, P.Khoroshyy, A.Bondar, J.Lazar. Directionality of Light Absorption and Emission in Representative Fluorescent Proteins. Proc.Natl.Acad.Sci.Usa 2020.
ISSN: ESSN 1091-6490
PubMed: 33273123
DOI: 10.1073/PNAS.2017379117