Chlorine in PDB 3t6l: Y54F Mutant of Core Streptavidin

The structure of Y54F Mutant of Core Streptavidin, PDB code: 3t6l was solved by L.Baugh, I.Le Trong, P.S.Stayton, R.E.Stenkamp, T.P.Lybrand, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	36.63 / 1.30
Space group	I 41 2 2
Cell size a, b, c (Å), α, β, γ (°)	57.273, 57.273, 171.715, 90.00, 90.00, 90.00
R / Rfree (%)	13.5 / 16

The binding sites of Chlorine atom in the Y54F Mutant of Core Streptavidin (pdb code 3t6l). This binding sites where shown within 5.0 Angstroms radius around Chlorine atom.
In total only one binding site of Chlorine was determined in the Y54F Mutant of Core Streptavidin, PDB code: 3t6l:

Chlorine binding site 1 out of 1 in the Y54F Mutant of Core Streptavidin


Mono view


Stereo pair view

A full contact list of Chlorine with other atoms in the Cl binding site number 1 of Y54F Mutant of Core Streptavidin within 5.0Å range: probe atom residue distance (Å) B Occ A:Cl4001 b:19.3 occ:1.00 O A:HOH6022 3.1 22.2 1.0 N A:ASP36 3.2 17.6 1.0 N A:ALA38 3.4 11.9 1.0 C A:GLY34 3.5 15.6 1.0 N A:GLY37 3.6 14.7 1.0 CB A:ALA38 3.6 15.9 1.0 CA A:GLY34 3.6 15.6 1.0 C A:ASP36 3.7 17.8 1.0 CA A:ASP36 3.7 19.4 1.0 N A:ALA35 3.7 16.8 1.0 CB A:ASP36 3.7 22.4 0.5 CB A:ASP36 3.8 21.6 0.5 O A:GLY34 4.0 16.5 1.0 CA A:ALA38 4.1 12.4 1.0 C A:ALA35 4.3 18.4 1.0 O A:ASP36 4.4 22.4 1.0 C A:GLY37 4.4 12.4 1.0 CA A:GLY37 4.5 13.8 1.0 CA A:ALA35 4.5 17.7 1.0 N A:GLY34 4.6 14.4 1.0 O A:HOH6034 4.8 26.7 1.0 CG A:ASP36 4.8 25.5 0.5 OD1 A:ASP36 5.0 34.5 0.5 O A:ALA38 5.0 15.8 1.0

L.Baugh, I.Le Trong, D.S.Cerutti, N.Mehta, S.Gulich, P.S.Stayton, R.E.Stenkamp, T.P.Lybrand. Second-Contact Shell Mutation Diminishes Streptavidin-Biotin Binding Affinity Through Transmitted Effects on Equilibrium Dynamics. Biochemistry V. 51 597 2012.
ISSN: ISSN 0006-2960
PubMed: 22145986
DOI: 10.1021/BI201221J