Chlorine in PDB 4pjo: Minimal U1 Snrnp

The structure of Minimal U1 Snrnp, PDB code: 4pjo was solved by Y.Kondo, C.Oubridge, A.M.Van Roon, K.Nagai, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	70.00 / 3.30
Space group	P 21 21 21
Cell size a, b, c (Å), α, β, γ (°)	120.359, 172.627, 256.322, 90.00, 90.00, 90.00
R / Rfree (%)	20.7 / 25.5

The structure of Minimal U1 Snrnp also contains other interesting chemical elements:

Magnesium	(Mg)	20 atoms
Potassium	(K)	6 atoms
Zinc	(Zn)	4 atoms

The binding sites of Chlorine atom in the Minimal U1 Snrnp (pdb code 4pjo). 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 Minimal U1 Snrnp, PDB code: 4pjo:

Chlorine binding site 1 out of 1 in the Minimal U1 Snrnp


Mono view


Stereo pair view

A full contact list of Chlorine with other atoms in the Cl binding site number 1 of Minimal U1 Snrnp within 5.0Å range: probe atom residue distance (Å) B Occ 4:Cl203 b:0.8 occ:1.00 N3 4:U137 2.5 0.9 1.0 N6 4:A135 2.7 0.8 1.0 C2 4:U137 2.9 0.9 1.0 C4 4:U137 2.9 0.6 1.0 O4 4:U137 3.3 0.9 1.0 O2 4:U137 3.3 84.2 1.0 C6 4:A135 3.3 0.7 1.0 ND1 n:HIS34 3.6 0.8 1.0 N n:GLN36 3.7 0.2 1.0 O n:GLN36 3.7 0.8 1.0 N1 4:U137 3.8 0.7 1.0 C5 4:U137 3.8 0.0 1.0 N n:ASN35 3.9 0.9 1.0 N1 4:A135 3.9 0.4 1.0 C5 4:A135 4.0 0.6 1.0 C n:GLN36 4.0 0.3 1.0 CG n:HIS34 4.0 0.2 1.0 CA n:HIS34 4.1 0.2 1.0 C6 4:U137 4.1 0.6 1.0 CB n:HIS34 4.1 0.5 1.0 C n:HIS34 4.2 0.1 1.0 CE1 n:HIS34 4.3 0.5 1.0 N7 4:A135 4.3 0.8 1.0 CA n:GLN36 4.3 0.2 1.0 N n:PRO37 4.5 0.9 1.0 C n:ASN35 4.6 0.5 1.0 CA n:PRO37 4.7 0.5 1.0 CA n:ASN35 4.7 0.7 1.0 CB n:GLN36 4.7 0.8 1.0 C1' 4:U137 4.8 0.7 1.0 CD2 n:HIS34 4.8 0.2 1.0 C2 4:A135 4.9 0.3 1.0 O n:HIS34 5.0 1.0 1.0 NE2 n:HIS34 5.0 0.0 1.0 C4 4:A135 5.0 0.4 1.0

Y.Kondo, C.Oubridge, A.M.Van Roon, K.Nagai. Crystal Structure of Human U1 Snrnp, A Small Nuclear Ribonucleoprotein Particle, Reveals the Mechanism of 5' Splice Site Recognition. Elife V. 4 2015.
ISSN: ESSN 2050-084X
PubMed: 25555158
DOI: 10.7554/ELIFE.04986