Iron in PDB 6unl: CYP3A4 Bound to An Inhibitor

All present enzymatic activity of CYP3A4 Bound to An Inhibitor:
1.14.14.1; 1.14.14.55; 1.14.14.56; 1.14.14.73;

The structure of CYP3A4 Bound to An Inhibitor, PDB code: 6unl was solved by I.Sevrioukova, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	40.23 / 2.55
Space group	I 2 2 2
Cell size a, b, c (Å), α, β, γ (°)	76.729, 101.810, 126.859, 90.00, 90.00, 90.00
R / Rfree (%)	20.7 / 27.6

The binding sites of Iron atom in the CYP3A4 Bound to An Inhibitor (pdb code 6unl). 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 CYP3A4 Bound to An Inhibitor, PDB code: 6unl:

Iron binding site 1 out of 1 in the CYP3A4 Bound to An Inhibitor


Mono view


Stereo pair view

A full contact list of Iron with other atoms in the Fe binding site number 1 of CYP3A4 Bound to An Inhibitor within 5.0Å range: probe atom residue distance (Å) B Occ A:Fe601 b:55.5 occ:1.00 FE A:HEM601 0.0 55.5 1.0 ND A:HEM601 2.0 50.2 1.0 NA A:HEM601 2.0 50.3 1.0 NC A:HEM601 2.0 51.2 1.0 NB A:HEM601 2.1 52.3 1.0 SG A:CYS442 2.4 58.7 1.0 N30 A:QDJ602 2.4 64.1 1.0 C29 A:QDJ602 2.9 58.9 1.0 C4D A:HEM601 3.0 44.2 1.0 C1C A:HEM601 3.0 48.3 1.0 C1A A:HEM601 3.0 50.6 1.0 C1D A:HEM601 3.1 49.7 1.0 C4A A:HEM601 3.1 53.1 1.0 C4B A:HEM601 3.1 48.5 1.0 C4C A:HEM601 3.1 54.7 1.0 C1B A:HEM601 3.2 51.6 1.0 CB A:CYS442 3.3 59.7 1.0 CHA A:HEM601 3.4 44.9 1.0 CHC A:HEM601 3.4 40.1 1.0 CHD A:HEM601 3.5 42.1 1.0 CHB A:HEM601 3.5 49.0 1.0 C31 A:QDJ602 3.6 74.0 1.0 CA A:CYS442 4.0 55.9 1.0 C3D A:HEM601 4.2 57.3 1.0 C2C A:HEM601 4.2 52.7 1.0 C2A A:HEM601 4.3 51.1 1.0 C2D A:HEM601 4.3 59.5 1.0 C3A A:HEM601 4.3 52.8 1.0 C3C A:HEM601 4.3 56.4 1.0 C28 A:QDJ602 4.3 59.0 1.0 C3B A:HEM601 4.3 52.5 1.0 C2B A:HEM601 4.4 55.6 1.0 C A:CYS442 4.7 54.9 1.0 C32 A:QDJ602 4.8 65.5 1.0 N A:GLY444 4.9 51.3 1.0

E.R.Samuels, I.F.Sevrioukova. An Increase in Side-Group Hydrophobicity Largely Improves the Potency of Ritonavir-Like Inhibitors of CYP3A4 Bioorg.Med.Chem. 2020.
ISSN: ESSN 1464-3391