Sodium in PDB 3q2p: Reduced Sweetness of A Monellin (Mnei) Mutant Results From Increased Protein Flexibility and Disruption of A Distant Poly-(L-Proline) II Helix

The structure of Reduced Sweetness of A Monellin (Mnei) Mutant Results From Increased Protein Flexibility and Disruption of A Distant Poly-(L-Proline) II Helix, PDB code: 3q2p was solved by C.M.Templeton, J.R.Hobbs, S.D.Munger, G.L.Conn, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	31.40 / 2.34
Space group	P 1 21 1
Cell size a, b, c (Å), α, β, γ (°)	31.400, 144.100, 45.800, 90.00, 90.00, 90.00
R / Rfree (%)	18.4 / 24.5

The binding sites of Sodium atom in the Reduced Sweetness of A Monellin (Mnei) Mutant Results From Increased Protein Flexibility and Disruption of A Distant Poly-(L-Proline) II Helix (pdb code 3q2p). 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 Reduced Sweetness of A Monellin (Mnei) Mutant Results From Increased Protein Flexibility and Disruption of A Distant Poly-(L-Proline) II Helix, PDB code: 3q2p:

Sodium binding site 1 out of 1 in the Reduced Sweetness of A Monellin (Mnei) Mutant Results From Increased Protein Flexibility and Disruption of A Distant Poly-(L-Proline) II Helix


Mono view


Stereo pair view

A full contact list of Sodium with other atoms in the Na binding site number 1 of Reduced Sweetness of A Monellin (Mnei) Mutant Results From Increased Protein Flexibility and Disruption of A Distant Poly-(L-Proline) II Helix within 5.0Å range: probe atom residue distance (Å) B Occ A:Na97 b:47.7 occ:1.00 OD1 A:ASP68 3.9 46.3 1.0 CE A:LYS36 4.0 32.2 1.0 CG A:TYR65 4.0 23.3 1.0 CB A:TYR65 4.2 24.4 1.0 CB A:ASN35 4.2 23.9 1.0 CD2 A:TYR65 4.2 27.2 1.0 NZ A:LYS36 4.3 37.7 1.0 OD1 A:ASN35 4.3 26.1 1.0 CD1 A:TYR65 4.3 19.5 1.0 CG A:ASN35 4.4 31.6 1.0 CD A:LYS36 4.6 28.2 1.0 CE2 A:TYR65 4.7 22.5 1.0 CE1 A:TYR65 4.9 26.3 1.0 CA A:ASP68 4.9 31.0 1.0

C.M.Templeton, S.Ostovar Pour, J.R.Hobbs, E.W.Blanch, S.D.Munger, G.L.Conn. Reduced Sweetness of A Monellin (Mnei) Mutant Results From Increased Protein Flexibility and Disruption of A Distant Poly-(L-Proline) II Helix. Chem Senses V. 36 425 2011.
ISSN: ESSN 1464-3553
PubMed: 21343241
DOI: 10.1093/CHEMSE/BJR007