Arsenic in PDB 5ic5: Bacteriophytochrome Response Regulator Rtbrr

The structure of Bacteriophytochrome Response Regulator Rtbrr, PDB code: 5ic5 was solved by A.W.Baker, K.A.Satyshur, K.T.Forest, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	38.30 / 1.90
Space group	P 41 2 2
Cell size a, b, c (Å), α, β, γ (°)	47.714, 47.714, 193.488, 90.00, 90.00, 90.00
R / Rfree (%)	17.5 / 21.3

The structure of Bacteriophytochrome Response Regulator Rtbrr also contains other interesting chemical elements:

Magnesium	(Mg)	1 atom
Zinc	(Zn)	3 atoms

The binding sites of Arsenic atom in the Bacteriophytochrome Response Regulator Rtbrr (pdb code 5ic5). This binding sites where shown within 5.0 Angstroms radius around Arsenic atom.
In total only one binding site of Arsenic was determined in the Bacteriophytochrome Response Regulator Rtbrr, PDB code: 5ic5:

Arsenic binding site 1 out of 1 in the Bacteriophytochrome Response Regulator Rtbrr


Mono view


Stereo pair view

A full contact list of Arsenic with other atoms in the As binding site number 1 of Bacteriophytochrome Response Regulator Rtbrr within 5.0Å range: probe atom residue distance (Å) B Occ A:As205 b:40.2 occ:0.43 AS A:CAC205 0.0 40.2 0.4 O2 A:CAC205 1.7 47.9 0.4 O1 A:CAC205 1.7 33.8 0.4 C1 A:CAC205 2.0 37.7 0.4 C2 A:CAC205 2.0 38.9 0.4 ZN A:ZN201 3.4 33.5 1.0 NE2 A:HIS165 4.1 43.1 1.0 CD2 A:HIS165 4.5 40.4 1.0 NE2 A:HIS162 4.7 44.7 1.0 CE1 A:HIS165 4.9 55.2 1.0

A.W.Baker, K.A.Satyshur, N.Moreno Morales, K.T.Forest. Arm-in-Arm Response Regulator Dimers Promote Intermolecular Signal Transduction. J.Bacteriol. V. 198 1218 2016.
ISSN: ESSN 1098-5530
PubMed: 26833410
DOI: 10.1128/JB.00872-15