Caesium in PDB 5k6u: Sidekick-1 Immunoglobulin Domains 1-4, Crystal Form 1

The structure of Sidekick-1 Immunoglobulin Domains 1-4, Crystal Form 1, PDB code: 5k6u was solved by X.Jin, K.M.Goodman, S.Mannepalli, B.Honig, L.Shapiro, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	38.19 / 2.20
Space group	C 1 2 1
Cell size a, b, c (Å), α, β, γ (°)	163.072, 49.260, 60.728, 90.00, 110.50, 90.00
R / Rfree (%)	19.1 / 22.8

The structure of Sidekick-1 Immunoglobulin Domains 1-4, Crystal Form 1 also contains other interesting chemical elements:

Iodine

(I)

6 atoms

The binding sites of Caesium atom in the Sidekick-1 Immunoglobulin Domains 1-4, Crystal Form 1 (pdb code 5k6u). This binding sites where shown within 5.0 Angstroms radius around Caesium atom.
In total only one binding site of Caesium was determined in the Sidekick-1 Immunoglobulin Domains 1-4, Crystal Form 1, PDB code: 5k6u:

Caesium binding site 1 out of 1 in the Sidekick-1 Immunoglobulin Domains 1-4, Crystal Form 1


Mono view


Stereo pair view

A full contact list of Caesium with other atoms in the Cs binding site number 1 of Sidekick-1 Immunoglobulin Domains 1-4, Crystal Form 1 within 5.0Å range: probe atom residue distance (Å) B Occ A:Cs411 b:60.1 occ:0.42 O A:PRO294 2.9 38.4 1.0 O A:HIS372 3.1 28.4 1.0 OG1 A:THR371 3.3 34.5 1.0 O A:HOH636 3.4 52.5 1.0 O A:HOH623 3.6 55.0 1.0 OE1 A:GLU293 3.9 59.0 1.0 C A:PRO294 4.1 38.1 1.0 N A:SER296 4.2 44.7 1.0 C A:GLU295 4.2 41.3 1.0 CA A:SER296 4.2 44.2 1.0 O A:GLU295 4.2 26.8 1.0 C A:HIS372 4.2 28.8 1.0 N A:HIS372 4.3 35.6 1.0 CG A:PRO294 4.6 31.3 1.0 CD A:PRO294 4.6 36.2 1.0 CB A:GLU293 4.7 48.2 1.0 CB A:SER296 4.7 51.6 1.0 CB A:THR371 4.7 37.8 1.0 N A:PRO294 4.8 42.5 1.0 CA A:GLU295 4.8 42.8 1.0 N A:GLU295 4.9 40.7 1.0 CA A:HIS372 4.9 34.5 1.0 CA A:PRO294 5.0 36.4 1.0

K.M.Goodman, M.Yamagata, X.Jin, S.Mannepalli, P.S.Katsamba, G.Ahlsen, A.P.Sergeeva, B.Honig, J.R.Sanes, L.Shapiro. Molecular Basis of Sidekick-Mediated Cell-Cell Adhesion and Specificity. Elife V. 5 2016.
ISSN: ESSN 2050-084X
PubMed: 27644106
DOI: 10.7554/ELIFE.19058