Sodium in PDB 7uqa: Crystal Structure of the Small Ultra-Red Fluorescent Protein (Smurfp)

The structure of Crystal Structure of the Small Ultra-Red Fluorescent Protein (Smurfp), PDB code: 7uqa was solved by A.Maiti, C.Z.Buffalo, S.Saurabh, F.Montecinos-Franjola, J.S.Hachey, W.J.Conlon, G.N.Tran, M.Drobizhev, W.E.Moerner, P.Ghosh, H.Matsuo, R.Y.Tsien, J.Y.Lin, E.A.Rodriguez, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	44.57 / 2.80
Space group	C 2 2 21
Cell size a, b, c (Å), α, β, γ (°)	81.087, 141.802, 171.942, 90, 90, 90
R / Rfree (%)	23.9 / 26.3

The structure of Crystal Structure of the Small Ultra-Red Fluorescent Protein (Smurfp) also contains other interesting chemical elements:

Chlorine

(Cl)

14 atoms

The binding sites of Sodium atom in the Crystal Structure of the Small Ultra-Red Fluorescent Protein (Smurfp) (pdb code 7uqa). 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 the Small Ultra-Red Fluorescent Protein (Smurfp), PDB code: 7uqa:

Sodium binding site 1 out of 1 in the Crystal Structure of the Small Ultra-Red Fluorescent Protein (Smurfp)


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 the Small Ultra-Red Fluorescent Protein (Smurfp) within 5.0Å range: probe atom residue distance (Å) B Occ C:Na204 b:86.7 occ:1.00 OE1 C:GLN46 2.4 95.0 1.0 OE1 D:GLN46 2.6 106.9 1.0 OE1 F:GLN46 2.8 97.8 1.0 OE1 A:GLN46 2.8 108.8 1.0 NE2 B:GLN46 2.9 94.4 1.0 OE1 E:GLN46 2.9 86.8 1.0 CD C:GLN46 3.3 101.4 1.0 NE2 C:GLN46 3.4 109.2 1.0 NE2 A:GLN46 3.4 107.1 1.0 CD A:GLN46 3.5 102.9 1.0 CD D:GLN46 3.6 106.1 1.0 CD F:GLN46 3.6 94.4 1.0 CD B:GLN46 3.7 96.6 1.0 CD E:GLN46 3.7 90.4 1.0 OE1 B:GLN46 3.7 105.5 1.0 NE2 F:GLN46 3.8 94.0 1.0 NE2 D:GLN46 3.8 108.8 1.0 NE2 E:GLN46 3.9 98.6 1.0 CG C:GLN46 4.7 94.0 1.0 CG D:GLN46 5.0 97.0 1.0 CG A:GLN46 5.0 91.7 1.0 CG F:GLN46 5.0 85.8 1.0

A.Maiti, C.Z.Buffalo, S.Saurabh, F.Montecinos-Franjola, J.S.Hachey, W.J.Conlon, G.N.Tran, B.Hassan, K.J.Walters, M.Drobizhev, W.E.Moerner, P.Ghosh, H.Matsuo, R.Y.Tsien, J.Y.Lin, E.A.Rodriguez. Structural and Photophysical Characterization of the Small Ultra-Red Fluorescent Protein. Nat Commun V. 14 4155 2023.
ISSN: ESSN 2041-1723
PubMed: 37438348
DOI: 10.1038/S41467-023-39776-9