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Iron in PDB 1yzi: A Novel Quaternary Structure of Human Carbonmonoxy Hemoglobin

Protein crystallography data

The structure of A Novel Quaternary Structure of Human Carbonmonoxy Hemoglobin, PDB code: 1yzi was solved by M.K.Safo, D.J.Abraham, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å) 58.00 / 2.07
Space group P 41 2 2
Cell size a, b, c (Å), α, β, γ (°) 61.464, 61.464, 174.750, 90.00, 90.00, 90.00
R / Rfree (%) 20.8 / 25.7

Iron Binding Sites:

The binding sites of Iron atom in the A Novel Quaternary Structure of Human Carbonmonoxy Hemoglobin (pdb code 1yzi). This binding sites where shown within 5.0 Angstroms radius around Iron atom.
In total 2 binding sites of Iron where determined in the A Novel Quaternary Structure of Human Carbonmonoxy Hemoglobin, PDB code: 1yzi:
Jump to Iron binding site number: 1; 2;

Iron binding site 1 out of 2 in 1yzi

Go back to Iron Binding Sites List in 1yzi
Iron binding site 1 out of 2 in the A Novel Quaternary Structure of Human Carbonmonoxy Hemoglobin


Mono view


Stereo pair view

A full contact list of Iron with other atoms in the Fe binding site number 1 of A Novel Quaternary Structure of Human Carbonmonoxy Hemoglobin within 5.0Å range:
probe atom residue distance (Å) B Occ
A:Fe143

b:38.9
occ:1.00
FE A:HEM143 0.0 38.9 1.0
C A:CMO142 1.8 27.9 1.0
NE2 A:HIS87 2.0 32.5 1.0
NA A:HEM143 2.0 37.7 1.0
NB A:HEM143 2.0 36.8 1.0
NC A:HEM143 2.0 36.4 1.0
ND A:HEM143 2.1 41.0 1.0
O A:CMO142 2.9 45.4 1.0
CE1 A:HIS87 3.0 32.2 1.0
CD2 A:HIS87 3.0 40.2 1.0
C4B A:HEM143 3.0 33.4 1.0
C1A A:HEM143 3.0 43.5 1.0
C1C A:HEM143 3.0 39.1 1.0
C4D A:HEM143 3.1 44.2 1.0
C4A A:HEM143 3.1 38.4 1.0
C4C A:HEM143 3.1 40.9 1.0
C1D A:HEM143 3.1 44.8 1.0
C1B A:HEM143 3.1 39.5 1.0
CHC A:HEM143 3.3 35.0 1.0
CHA A:HEM143 3.4 36.9 1.0
CHD A:HEM143 3.5 37.6 1.0
CHB A:HEM143 3.5 36.6 1.0
ND1 A:HIS87 4.1 31.4 1.0
CG A:HIS87 4.2 42.7 1.0
C3B A:HEM143 4.3 38.1 1.0
C3A A:HEM143 4.3 34.2 1.0
C3D A:HEM143 4.3 45.3 1.0
C2B A:HEM143 4.3 34.6 1.0
C2C A:HEM143 4.3 37.1 1.0
C2A A:HEM143 4.3 40.7 1.0
C3C A:HEM143 4.3 35.7 1.0
NE2 A:HIS58 4.4 43.8 1.0
C2D A:HEM143 4.4 41.4 1.0
CG2 A:VAL62 4.9 38.2 1.0

Iron binding site 2 out of 2 in 1yzi

Go back to Iron Binding Sites List in 1yzi
Iron binding site 2 out of 2 in the A Novel Quaternary Structure of Human Carbonmonoxy Hemoglobin


Mono view


Stereo pair view

A full contact list of Iron with other atoms in the Fe binding site number 2 of A Novel Quaternary Structure of Human Carbonmonoxy Hemoglobin within 5.0Å range:
probe atom residue distance (Å) B Occ
B:Fe148

b:56.6
occ:1.00
FE B:HEM148 0.0 56.6 1.0
C B:CMO147 1.9 52.2 1.0
NB B:HEM148 2.0 55.0 1.0
NE2 B:HIS92 2.1 55.7 1.0
NC B:HEM148 2.1 51.2 1.0
ND B:HEM148 2.1 55.1 1.0
NA B:HEM148 2.1 56.7 1.0
CE1 B:HIS92 3.0 58.7 1.0
C4B B:HEM148 3.1 53.7 1.0
C1B B:HEM148 3.1 56.5 1.0
O B:CMO147 3.1 56.8 1.0
C1C B:HEM148 3.1 52.9 1.0
C4A B:HEM148 3.1 55.2 1.0
CD2 B:HIS92 3.1 50.6 1.0
C1D B:HEM148 3.1 57.8 1.0
C4D B:HEM148 3.2 57.3 1.0
C1A B:HEM148 3.2 50.9 1.0
C4C B:HEM148 3.2 50.9 1.0
CHC B:HEM148 3.4 53.8 1.0
CHB B:HEM148 3.4 58.5 1.0
CHD B:HEM148 3.5 54.1 1.0
CHA B:HEM148 3.5 53.8 1.0
ND1 B:HIS92 4.2 61.4 1.0
CG B:HIS92 4.3 59.9 1.0
C2B B:HEM148 4.4 56.7 1.0
C3B B:HEM148 4.4 55.7 1.0
C3A B:HEM148 4.4 54.4 1.0
C3D B:HEM148 4.4 60.6 1.0
C2C B:HEM148 4.4 48.6 1.0
C2A B:HEM148 4.4 52.5 1.0
C2D B:HEM148 4.4 60.8 1.0
C3C B:HEM148 4.5 49.6 1.0
CG2 B:VAL67 4.5 59.5 1.0
CE1 B:HIS63 4.6 46.2 1.0

Reference:

M.K.Safo, D.J.Abraham. The Enigma of the Liganded Hemoglobin End State: A Novel Quaternary Structure of Human Carbonmonoxy Hemoglobin. Biochemistry V. 44 8347 2005.
ISSN: ISSN 0006-2960
PubMed: 15938624
DOI: 10.1021/BI050412Q
Page generated: Wed Jul 16 22:58:27 2025

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