Iron in PDB 1rqk: Structure of the Reaction Centre From Rhodobacter Sphaeroides Carotenoidless Strain R-26.1 Reconstituted with 3,4- Dihydrospheroidene

The structure of Structure of the Reaction Centre From Rhodobacter Sphaeroides Carotenoidless Strain R-26.1 Reconstituted with 3,4- Dihydrospheroidene, PDB code: 1rqk was solved by A.W.Roszak, H.Hashimoto, A.T.Gardiner, R.J.Cogdell, N.W.Isaacs, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	15.29 / 2.70
Space group	P 31 2 1
Cell size a, b, c (Å), α, β, γ (°)	141.718, 141.718, 187.179, 90.00, 90.00, 120.00
R / Rfree (%)	16.2 / 19.4

The structure of Structure of the Reaction Centre From Rhodobacter Sphaeroides Carotenoidless Strain R-26.1 Reconstituted with 3,4- Dihydrospheroidene also contains other interesting chemical elements:

Magnesium

(Mg)

4 atoms

The binding sites of Iron atom in the Structure of the Reaction Centre From Rhodobacter Sphaeroides Carotenoidless Strain R-26.1 Reconstituted with 3,4- Dihydrospheroidene (pdb code 1rqk). This binding sites where shown within 5.0 Angstroms radius around Iron atom.
In total only one binding site of Iron was determined in the Structure of the Reaction Centre From Rhodobacter Sphaeroides Carotenoidless Strain R-26.1 Reconstituted with 3,4- Dihydrospheroidene, PDB code: 1rqk:

Iron binding site 1 out of 1 in the Structure of the Reaction Centre From Rhodobacter Sphaeroides Carotenoidless Strain R-26.1 Reconstituted with 3,4- Dihydrospheroidene


Mono view


Stereo pair view

A full contact list of Iron with other atoms in the Fe binding site number 1 of Structure of the Reaction Centre From Rhodobacter Sphaeroides Carotenoidless Strain R-26.1 Reconstituted with 3,4- Dihydrospheroidene within 5.0Å range: probe atom residue distance (Å) B Occ M:Fe500 b:49.7 occ:1.00 NE2 L:HIS190 2.1 45.6 1.0 OE2 M:GLU234 2.1 48.1 1.0 NE2 M:HIS266 2.2 44.2 1.0 NE2 M:HIS219 2.3 46.4 1.0 NE2 L:HIS230 2.4 45.4 1.0 OE1 M:GLU234 2.4 47.9 1.0 CD M:GLU234 2.6 46.9 1.0 CE1 L:HIS190 3.0 46.8 1.0 CD2 L:HIS190 3.1 46.8 1.0 CE1 M:HIS266 3.1 47.1 1.0 CE1 M:HIS219 3.2 45.6 1.0 CD2 M:HIS266 3.3 45.5 1.0 CE1 L:HIS230 3.3 46.7 1.0 CD2 L:HIS230 3.4 47.5 1.0 CD2 M:HIS219 3.4 45.0 1.0 CG M:GLU234 4.1 47.4 1.0 ND1 L:HIS190 4.1 45.1 1.0 CG L:HIS190 4.2 44.3 1.0 ND1 M:HIS266 4.3 46.1 1.0 ND1 M:HIS219 4.3 43.8 1.0 CG M:HIS266 4.4 44.8 1.0 ND1 L:HIS230 4.5 45.1 1.0 CG M:HIS219 4.5 44.3 1.0 CG L:HIS230 4.5 46.4 1.0 CG2 L:VAL194 4.6 43.3 1.0 CG1 M:ILE223 4.6 44.5 1.0 O M:HOH908 4.9 49.0 1.0 CB M:GLU234 5.0 46.1 1.0

A.W.Roszak, K.Mckendrick, A.T.Gardiner, I.A.Mitchell, N.W.Isaacs, R.J.Cogdell, H.Hashimoto, H.A.Frank. Protein Regulation of Carotenoid Binding: Gatekeeper and Locking Amino Acid Residues in Reaction Centers of Rhodobacter Sphaeroides Structure V. 12 765 2004.
ISSN: ISSN 0969-2126
PubMed: 15130469
DOI: 10.1016/J.STR.2004.02.037