Sodium in PDB 2guo: Human Class I Mhc Hla-A2 in Complex with the Native Nonameric Melan- A/Mart-1(27-35) Peptide

The structure of Human Class I Mhc Hla-A2 in Complex with the Native Nonameric Melan- A/Mart-1(27-35) Peptide, PDB code: 2guo was solved by O.Y.Borbulevych, B.M.Baker, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	20.00 / 1.90
Space group	P 1 21 1
Cell size a, b, c (Å), α, β, γ (°)	83.957, 58.369, 89.425, 90.00, 109.66, 90.00
R / Rfree (%)	18.7 / 24.4

The binding sites of Sodium atom in the Human Class I Mhc Hla-A2 in Complex with the Native Nonameric Melan- A/Mart-1(27-35) Peptide (pdb code 2guo). 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 Human Class I Mhc Hla-A2 in Complex with the Native Nonameric Melan- A/Mart-1(27-35) Peptide, PDB code: 2guo:

Sodium binding site 1 out of 1 in the Human Class I Mhc Hla-A2 in Complex with the Native Nonameric Melan- A/Mart-1(27-35) Peptide


Mono view


Stereo pair view

A full contact list of Sodium with other atoms in the Na binding site number 1 of Human Class I Mhc Hla-A2 in Complex with the Native Nonameric Melan- A/Mart-1(27-35) Peptide within 5.0Å range: probe atom residue distance (Å) B Occ E:Na605 b:25.4 occ:1.00 O E:HOH665 2.2 29.4 1.0 O E:LEU87 2.4 15.8 1.0 O E:HOH681 2.5 25.4 1.0 O E:HOH668 2.5 27.1 1.0 O E:HIS84 2.6 9.0 1.0 OD1 E:ASN83 2.8 13.6 1.0 CG E:ASN83 3.6 14.6 1.0 C E:LEU87 3.6 15.4 1.0 C E:HIS84 3.6 10.5 1.0 ND2 E:ASN83 3.8 19.8 1.0 N E:HIS84 4.0 10.3 1.0 O E:HOH673 4.1 35.6 1.0 CA E:VAL85 4.2 11.5 1.0 O E:VAL85 4.2 11.3 1.0 N E:VAL85 4.3 11.0 1.0 N E:LEU87 4.3 13.8 1.0 C E:VAL85 4.4 11.3 1.0 CA E:LEU87 4.4 13.6 1.0 CA E:HIS84 4.5 10.5 1.0 CB E:LEU87 4.5 13.0 1.0 N E:SER88 4.6 15.9 1.0 CA E:SER88 4.6 17.2 1.0 C E:SER88 4.6 17.4 1.0 CB E:ASN83 4.8 12.1 1.0 N E:GLN89 4.8 17.2 1.0 O E:SER88 5.0 17.8 1.0 C E:ASN83 5.0 10.8 1.0

O.Y.Borbulevych, F.K.Insaidoo, T.K.Baxter, D.J.Powell, L.A.Johnson, N.P.Restifo, B.M.Baker. Structures of Mart-1(26/27-35) Peptide/Hla-A2 Complexes Reveal A Remarkable Disconnect Between Antigen Structural Homology and T Cell Recognition J.Mol.Biol. V. 372 1123 2007.
ISSN: ISSN 0022-2836
PubMed: 17719062
DOI: 10.1016/J.JMB.2007.07.025