Sodium in PDB 4no2: Crystal Structure of RQA_V Phosphopeptide Bound to Hla-A2

The structure of Crystal Structure of RQA_V Phosphopeptide Bound to Hla-A2, PDB code: 4no2 was solved by F.Mohammed, D.H.Stones, B.E.Willcox, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	19.86 / 2.00
Space group	C 1 2 1
Cell size a, b, c (Å), α, β, γ (°)	119.200, 54.700, 75.200, 90.00, 104.80, 90.00
R / Rfree (%)	20.8 / 24.9

The binding sites of Sodium atom in the Crystal Structure of RQA_V Phosphopeptide Bound to Hla-A2 (pdb code 4no2). 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 RQA_V Phosphopeptide Bound to Hla-A2, PDB code: 4no2:

Sodium binding site 1 out of 1 in the Crystal Structure of RQA_V Phosphopeptide Bound to Hla-A2


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 RQA_V Phosphopeptide Bound to Hla-A2 within 5.0Å range: probe atom residue distance (Å) B Occ C:Na102 b:31.6 occ:1.00 OG C:SEP4 2.7 37.3 1.0 O C:GLN2 2.8 24.5 1.0 NE C:ARG1 3.0 22.5 1.0 O A:HOH533 3.5 34.9 1.0 NZ A:LYS66 3.6 18.9 1.0 CB C:SEP4 3.6 35.5 1.0 O1P C:SEP4 3.6 40.6 1.0 P C:SEP4 3.6 40.8 1.0 N C:SEP4 3.7 33.1 1.0 CG2 A:THR163 3.8 20.2 1.0 CD C:ARG1 3.8 22.0 1.0 CZ C:ARG1 4.0 23.0 1.0 C C:GLN2 4.0 24.7 1.0 O3P C:SEP4 4.0 40.6 1.0 NH2 C:ARG1 4.0 23.4 1.0 O C:HOH209 4.1 36.4 1.0 C C:ALA3 4.1 31.4 1.0 CG C:ARG1 4.1 21.5 1.0 O C:HOH207 4.2 39.6 1.0 CA C:SEP4 4.2 35.2 1.0 CA C:ALA3 4.3 29.2 1.0 CD1 A:TYR159 4.6 20.8 1.0 N C:ALA3 4.6 26.7 1.0 CE1 A:TYR159 4.6 20.1 1.0 CB A:THR163 4.7 20.8 1.0 OG1 A:THR163 4.8 23.3 1.0 O C:ALA3 4.9 31.7 1.0 CE A:LYS66 4.9 19.9 1.0

F.Mohammed, D.H.Stones, B.E.Willcox. Phosphorylation-Induced Conformational Changes Radically Alter the Antigenic Identity of Human Mhc Class I Phosphopeptides To Be Published.