Chlorine in PDB 6p1a: Transcription Antitermination Factor Q21 in Complex with Q21-Binding- Element Dna

The structure of Transcription Antitermination Factor Q21 in Complex with Q21-Binding- Element Dna, PDB code: 6p1a was solved by Z.Yin, R.H.Ebright, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	47.81 / 2.84
Space group	P 21 21 2
Cell size a, b, c (Å), α, β, γ (°)	69.573, 263.224, 56.770, 90.00, 90.00, 90.00
R / Rfree (%)	23.1 / 27.5

The binding sites of Chlorine atom in the Transcription Antitermination Factor Q21 in Complex with Q21-Binding- Element Dna (pdb code 6p1a). This binding sites where shown within 5.0 Angstroms radius around Chlorine atom.
In total 2 binding sites of Chlorine where determined in the Transcription Antitermination Factor Q21 in Complex with Q21-Binding- Element Dna, PDB code: 6p1a:
Jump to Chlorine binding site number: 1; 2;

Chlorine binding site 1 out of 2 in the Transcription Antitermination Factor Q21 in Complex with Q21-Binding- Element Dna


Mono view


Stereo pair view

A full contact list of Chlorine with other atoms in the Cl binding site number 1 of Transcription Antitermination Factor Q21 in Complex with Q21-Binding- Element Dna within 5.0Å range: probe atom residue distance (Å) B Occ B:Cl202 b:59.6 occ:1.00 HA3 B:GLY18 3.1 29.9 1.0 H B:TRP19 3.8 34.6 1.0 HA B:TRP15 3.9 36.4 1.0 O B:TRP15 3.9 26.2 1.0 CA B:GLY18 4.0 24.7 1.0 N B:TRP19 4.0 28.7 1.0 C B:GLY18 4.0 24.8 1.0 HD1 B:TRP15 4.4 32.7 1.0 CD1 B:TRP19 4.5 29.1 1.0 HA B:TRP19 4.5 30.8 1.0 H B:GLY18 4.6 24.7 1.0 HA2 B:GLY18 4.6 29.9 1.0 NE1 B:TRP19 4.6 26.8 1.0 CG B:TRP19 4.6 24.2 1.0 HD1 B:TRP19 4.7 35.1 1.0 HD12 B:LEU22 4.7 16.1 1.0 O B:GLY18 4.7 34.6 1.0 CA B:TRP15 4.7 30.2 1.0 CD1 B:TRP15 4.7 27.1 1.0 C B:TRP15 4.7 29.0 1.0 CA B:TRP19 4.8 25.5 1.0 N B:GLY18 4.8 20.4 1.0 CE2 B:TRP19 4.8 15.2 1.0 CD2 B:TRP19 4.8 27.2 1.0 HE1 B:TRP19 4.8 32.3 1.0 HD11 B:LEU22 4.9 16.1 1.0

Chlorine binding site 2 out of 2 in the Transcription Antitermination Factor Q21 in Complex with Q21-Binding- Element Dna


Mono view


Stereo pair view

A full contact list of Chlorine with other atoms in the Cl binding site number 2 of Transcription Antitermination Factor Q21 in Complex with Q21-Binding- Element Dna within 5.0Å range: probe atom residue distance (Å) B Occ C:Cl201 b:61.7 occ:1.00 HA3 C:GLY18 3.6 41.5 1.0 H C:TRP19 3.7 42.2 1.0 CD1 C:TRP19 3.7 24.9 1.0 O C:TRP15 3.8 50.5 1.0 HG3 A:PRO56 3.8 35.4 1.0 NE1 C:TRP19 3.8 26.1 1.0 N C:TRP19 3.9 35.0 1.0 HD1 C:TRP15 3.9 43.5 1.0 HD1 C:TRP19 4.0 30.1 1.0 CG C:TRP19 4.0 18.9 1.0 HA C:TRP15 4.0 52.9 1.0 HE1 C:TRP19 4.1 31.6 1.0 CE2 C:TRP19 4.1 10.4 1.0 CD2 C:TRP19 4.2 9.2 1.0 CD1 C:TRP15 4.2 36.1 1.0 HA C:TRP19 4.2 21.0 1.0 C C:GLY18 4.2 23.9 1.0 CA C:GLY18 4.4 34.4 1.0 CA C:TRP19 4.5 17.3 1.0 NE1 C:TRP15 4.5 45.2 1.0 HE1 C:TRP15 4.5 54.5 1.0 HD12 C:LEU22 4.5 19.8 1.0 HD3 A:PRO56 4.6 43.2 1.0 CB C:TRP19 4.6 13.3 1.0 C C:TRP15 4.7 39.1 1.0 CG A:PRO56 4.7 29.3 1.0 HB2 C:TRP19 4.7 16.1 1.0 CA C:TRP15 4.7 43.9 1.0 CZ2 C:TRP19 4.8 26.7 1.0 CG C:TRP15 4.8 27.0 1.0 HD11 C:LEU22 4.8 19.8 1.0 H C:GLY18 4.9 38.5 1.0 O C:GLY18 4.9 26.6 1.0 CE3 C:TRP19 5.0 14.7 1.0

Z.Yin, J.T.Kaelber, R.H.Ebright. Structural Basis of Q-Dependent Antitermination. Proc.Natl.Acad.Sci.Usa V. 116 18384 2019.
ISSN: ESSN 1091-6490
PubMed: 31455742
DOI: 10.1073/PNAS.1909801116