Iron in PDB 3ark: Cl- Binding Hemoglobin Component V Form Propsilocerus Akamusi Under 1 M Nacl at pH 4.6

The structure of Cl- Binding Hemoglobin Component V Form Propsilocerus Akamusi Under 1 M Nacl at pH 4.6, PDB code: 3ark was solved by T.Kuwada, T.Hasegawa, T.Takagi, F.Shishikura, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	33.53 / 1.81
Space group	P 21 21 2
Cell size a, b, c (Å), α, β, γ (°)	65.200, 75.250, 33.530, 90.00, 90.00, 90.00
R / Rfree (%)	19.3 / 23.1

The structure of Cl- Binding Hemoglobin Component V Form Propsilocerus Akamusi Under 1 M Nacl at pH 4.6 also contains other interesting chemical elements:

Chlorine

(Cl)

5 atoms

The binding sites of Iron atom in the Cl- Binding Hemoglobin Component V Form Propsilocerus Akamusi Under 1 M Nacl at pH 4.6 (pdb code 3ark). 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 Cl- Binding Hemoglobin Component V Form Propsilocerus Akamusi Under 1 M Nacl at pH 4.6, PDB code: 3ark:

Iron binding site 1 out of 1 in the Cl- Binding Hemoglobin Component V Form Propsilocerus Akamusi Under 1 M Nacl at pH 4.6


Mono view


Stereo pair view

A full contact list of Iron with other atoms in the Fe binding site number 1 of Cl- Binding Hemoglobin Component V Form Propsilocerus Akamusi Under 1 M Nacl at pH 4.6 within 5.0Å range: probe atom residue distance (Å) B Occ A:Fe153 b:14.8 occ:1.00 FE A:HEM153 0.0 14.8 1.0 NC A:HEM153 2.1 13.0 1.0 ND A:HEM153 2.1 16.9 1.0 NA A:HEM153 2.1 14.1 1.0 NB A:HEM153 2.1 12.8 1.0 NE2 A:HIS98 2.2 16.8 1.0 CL A:CL154 2.4 21.6 1.0 C4C A:HEM153 3.1 13.8 1.0 C1B A:HEM153 3.1 12.9 1.0 C4D A:HEM153 3.1 20.1 1.0 C4A A:HEM153 3.1 15.1 1.0 CE1 A:HIS98 3.1 9.2 1.0 C1C A:HEM153 3.1 12.6 1.0 C1A A:HEM153 3.1 17.3 1.0 C4B A:HEM153 3.1 12.2 1.0 C1D A:HEM153 3.1 18.2 1.0 CD2 A:HIS98 3.2 11.4 1.0 CHD A:HEM153 3.4 16.2 1.0 CHB A:HEM153 3.4 12.5 1.0 CHA A:HEM153 3.4 18.9 1.0 CHC A:HEM153 3.5 12.4 1.0 C2D A:HEM153 4.3 20.7 1.0 ND1 A:HIS98 4.3 14.7 1.0 C3C A:HEM153 4.3 11.4 1.0 C2C A:HEM153 4.3 10.8 1.0 C3D A:HEM153 4.3 22.4 1.0 C2B A:HEM153 4.3 12.3 1.0 C3B A:HEM153 4.3 12.1 1.0 C3A A:HEM153 4.3 16.1 1.0 C2A A:HEM153 4.3 19.2 1.0 CG A:HIS98 4.4 11.9 1.0 NE A:ARG69 4.6 22.9 1.0 NH2 A:ARG69 4.6 23.8 1.0 CG1 A:ILE70 4.8 14.2 1.0

T.Kuwada, T.Hasegawa, T.Takagi, T.Sakae, I.Sato, F.Shishikura. Involvement of the Distal Arg Residue in Cl- Binding of Midge Larval Haemoglobin Acta Crystallogr.,Sect.D V. 67 488 2011.
ISSN: ISSN 0907-4449
PubMed: 21543852
DOI: 10.1107/S0907444911010808