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Magnesium in PDB 1aig: Photosynthetic Reaction Center From Rhodobacter Sphaeroides in the D+Qb-Charge Separated State

Protein crystallography data

The structure of Photosynthetic Reaction Center From Rhodobacter Sphaeroides in the D+Qb-Charge Separated State, PDB code: 1aig was solved by M.H.B.Stowell, T.M.Mcphillips, S.M.Soltis, D.C.Rees, E.Abresch, G.Feher, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å) 30.00 / 2.60
Space group P 43 21 2
Cell size a, b, c (Å), α, β, γ (°) 140.100, 140.100, 271.700, 90.00, 90.00, 90.00
R / Rfree (%) 21.5 / 29.9

Other elements in 1aig:

The structure of Photosynthetic Reaction Center From Rhodobacter Sphaeroides in the D+Qb-Charge Separated State also contains other interesting chemical elements:

Iron (Fe) 2 atoms

Magnesium Binding Sites:

The binding sites of Magnesium atom in the Photosynthetic Reaction Center From Rhodobacter Sphaeroides in the D+Qb-Charge Separated State (pdb code 1aig). This binding sites where shown within 5.0 Angstroms radius around Magnesium atom.
In total 8 binding sites of Magnesium where determined in the Photosynthetic Reaction Center From Rhodobacter Sphaeroides in the D+Qb-Charge Separated State, PDB code: 1aig:
Jump to Magnesium binding site number: 1; 2; 3; 4; 5; 6; 7; 8;

Magnesium binding site 1 out of 8 in 1aig

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Magnesium binding site 1 out of 8 in the Photosynthetic Reaction Center From Rhodobacter Sphaeroides in the D+Qb-Charge Separated State


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 1 of Photosynthetic Reaction Center From Rhodobacter Sphaeroides in the D+Qb-Charge Separated State within 5.0Å range:
probe atom residue distance (Å) B Occ
L:Mg282

b:43.5
occ:1.00
 MG L:BCL282 0.0 43.5 1.0
ND L:BCL282 2.0 43.3 1.0
NC L:BCL282 2.0 41.8 1.0
NB L:BCL282 2.1 44.5 1.0
NA L:BCL282 2.1 45.8 1.0
NE2 L:HIS173 2.4 37.2 1.0
C4A L:BCL282 3.0 45.0 1.0
C4C L:BCL282 3.0 43.1 1.0
C1B L:BCL282 3.0 44.0 1.0
C4D L:BCL282 3.1 45.0 1.0
C1D L:BCL282 3.1 42.5 1.0
C1C L:BCL282 3.1 40.3 1.0
CE1 L:HIS173 3.1 37.6 1.0
C4B L:BCL282 3.1 44.7 1.0
C1A L:BCL282 3.2 45.0 1.0
CHB L:BCL282 3.4 44.7 1.0
CHD L:BCL282 3.4 44.1 1.0
CHC L:BCL282 3.4 43.7 1.0
CBB M:BCL310 3.4 48.1 1.0
CD2 L:HIS173 3.5 36.6 1.0
CHA L:BCL282 3.5 45.2 1.0
CAB M:BCL310 3.5 47.3 1.0
OBB M:BCL310 3.6 47.2 1.0
C2D L:BCL282 4.2 43.4 1.0
C2B L:BCL282 4.3 43.6 1.0
C3B M:BCL310 4.3 45.0 1.0
C3B L:BCL282 4.3 43.2 1.0
ND1 L:HIS173 4.3 39.1 1.0
C3D L:BCL282 4.3 45.6 1.0
C2C L:BCL282 4.4 37.3 1.0
C3C L:BCL282 4.4 39.5 1.0
C3A L:BCL282 4.4 44.9 1.0
C2A L:BCL282 4.5 44.3 1.0
CG L:HIS173 4.5 37.6 1.0
CD2 L:PHE167 4.9 48.6 1.0
C2B M:BCL310 4.9 44.6 1.0
C4B M:BCL310 5.0 42.8 1.0
CBD L:BCL282 5.0 43.2 1.0

Magnesium binding site 2 out of 8 in 1aig

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Magnesium binding site 2 out of 8 in the Photosynthetic Reaction Center From Rhodobacter Sphaeroides in the D+Qb-Charge Separated State


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 2 of Photosynthetic Reaction Center From Rhodobacter Sphaeroides in the D+Qb-Charge Separated State within 5.0Å range:
probe atom residue distance (Å) B Occ
L:Mg283

b:37.0
occ:1.00
 MG L:BCL283 0.0 37.0 1.0
NC L:BCL283 2.0 36.1 1.0
ND L:BCL283 2.0 37.6 1.0
NA L:BCL283 2.0 37.0 1.0
NB L:BCL283 2.0 36.0 1.0
NE2 L:HIS153 2.6 51.5 1.0
C4A L:BCL283 3.0 37.7 1.0
C1B L:BCL283 3.0 38.9 1.0
C4C L:BCL283 3.0 37.8 1.0
C4D L:BCL283 3.0 39.0 1.0
C1C L:BCL283 3.1 37.0 1.0
C1D L:BCL283 3.1 38.7 1.0
C4B L:BCL283 3.1 36.8 1.0
C1A L:BCL283 3.1 39.2 1.0
CHB L:BCL283 3.3 37.4 1.0
CHD L:BCL283 3.4 38.7 1.0
CHC L:BCL283 3.4 34.1 1.0
CHA L:BCL283 3.4 40.4 1.0
CE1 L:HIS153 3.5 51.6 1.0
CD2 L:HIS153 3.5 51.8 1.0
C2D L:BCL283 4.2 37.5 1.0
OBB L:BPH285 4.2 47.4 1.0
C2B L:BCL283 4.2 39.5 1.0
C3D L:BCL283 4.3 37.5 1.0
C3B L:BCL283 4.3 37.4 1.0
C3A L:BCL283 4.3 39.5 1.0
C3C L:BCL283 4.3 39.2 1.0
C2C L:BCL283 4.4 40.4 1.0
C2A L:BCL283 4.4 39.4 1.0
ND1 L:HIS153 4.6 52.0 1.0
CE2 M:TYR210 4.7 45.2 1.0
CG L:HIS153 4.7 51.7 1.0
CBA L:BCL283 4.8 43.3 1.0
CBD L:BCL283 4.9 43.1 1.0
C20 L:BPH285 5.0 37.5 1.0

Magnesium binding site 3 out of 8 in 1aig

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Magnesium binding site 3 out of 8 in the Photosynthetic Reaction Center From Rhodobacter Sphaeroides in the D+Qb-Charge Separated State


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 3 of Photosynthetic Reaction Center From Rhodobacter Sphaeroides in the D+Qb-Charge Separated State within 5.0Å range:
probe atom residue distance (Å) B Occ
M:Mg309

b:51.5
occ:1.00
 MG M:BCL309 0.0 51.5 1.0
ND M:BCL309 2.0 47.0 1.0
NC M:BCL309 2.0 49.5 1.0
NA M:BCL309 2.1 51.3 1.0
NB M:BCL309 2.1 51.4 1.0
NE2 M:HIS182 2.4 51.4 1.0
C4A M:BCL309 3.0 51.5 1.0
C4C M:BCL309 3.0 48.5 1.0
C1D M:BCL309 3.0 47.2 1.0
C4D M:BCL309 3.0 45.8 1.0
C1B M:BCL309 3.1 51.9 1.0
C1C M:BCL309 3.1 49.3 1.0
C4B M:BCL309 3.1 52.7 1.0
C1A M:BCL309 3.1 49.9 1.0
CD2 M:HIS182 3.3 50.0 1.0
CHB M:BCL309 3.4 51.3 1.0
CHD M:BCL309 3.4 47.2 1.0
CE1 M:HIS182 3.4 50.8 1.0
CHC M:BCL309 3.4 51.4 1.0
CHA M:BCL309 3.4 47.2 1.0
C2D M:BCL309 4.2 47.1 1.0
C2B M:BCL309 4.3 53.2 1.0
C3D M:BCL309 4.3 44.6 1.0
C3B M:BCL309 4.3 53.8 1.0
C3C M:BCL309 4.3 47.4 1.0
C3A M:BCL309 4.4 52.9 1.0
C2C M:BCL309 4.4 49.1 1.0
C2A M:BCL309 4.4 52.2 1.0
CG M:HIS182 4.5 49.4 1.0
ND1 M:HIS182 4.5 49.8 1.0
CBB L:BPH284 4.5 44.8 1.0
CE2 L:PHE181 4.6 36.6 1.0
CBD M:BCL309 4.9 48.1 1.0

Magnesium binding site 4 out of 8 in 1aig

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Magnesium binding site 4 out of 8 in the Photosynthetic Reaction Center From Rhodobacter Sphaeroides in the D+Qb-Charge Separated State


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 4 of Photosynthetic Reaction Center From Rhodobacter Sphaeroides in the D+Qb-Charge Separated State within 5.0Å range:
probe atom residue distance (Å) B Occ
M:Mg310

b:43.0
occ:1.00
 MG M:BCL310 0.0 43.0 1.0
NC M:BCL310 2.0 43.4 1.0
ND M:BCL310 2.0 42.9 1.0
NB M:BCL310 2.1 43.5 1.0
NA M:BCL310 2.1 44.6 1.0
NE2 M:HIS202 2.3 35.6 1.0
CE1 M:HIS202 3.0 37.9 1.0
C1C M:BCL310 3.0 41.5 1.0
C4D M:BCL310 3.0 41.6 1.0
C4A M:BCL310 3.0 43.9 1.0
C4C M:BCL310 3.0 42.6 1.0
C1B M:BCL310 3.0 45.0 1.0
C1D M:BCL310 3.1 44.0 1.0
C4B M:BCL310 3.1 42.8 1.0
C1A M:BCL310 3.1 43.2 1.0
CHB M:BCL310 3.4 44.7 1.0
CHC M:BCL310 3.4 42.6 1.0
CHD M:BCL310 3.4 43.7 1.0
CHA M:BCL310 3.4 41.5 1.0
CD2 M:HIS202 3.5 38.5 1.0
OBB L:BCL282 3.5 43.7 1.0
CAB L:BCL282 3.5 42.0 1.0
CBB L:BCL282 3.5 40.7 1.0
C2D M:BCL310 4.2 44.1 1.0
C2B M:BCL310 4.3 44.6 1.0
ND1 M:HIS202 4.3 37.4 1.0
C3B M:BCL310 4.3 45.0 1.0
C3B L:BCL282 4.3 43.2 1.0
C3D M:BCL310 4.3 42.4 1.0
C2C M:BCL310 4.3 41.0 1.0
C3C M:BCL310 4.3 40.9 1.0
C3A M:BCL310 4.4 43.1 1.0
C2A M:BCL310 4.4 43.4 1.0
CG M:HIS202 4.5 40.2 1.0
CBD M:BCL310 4.9 40.6 1.0
C4B L:BCL282 4.9 44.7 1.0

Magnesium binding site 5 out of 8 in 1aig

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Magnesium binding site 5 out of 8 in the Photosynthetic Reaction Center From Rhodobacter Sphaeroides in the D+Qb-Charge Separated State


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 5 of Photosynthetic Reaction Center From Rhodobacter Sphaeroides in the D+Qb-Charge Separated State within 5.0Å range:
probe atom residue distance (Å) B Occ
N:Mg282

b:45.9
occ:1.00
 MG N:BCL282 0.0 45.9 1.0
ND N:BCL282 2.0 45.1 1.0
NA N:BCL282 2.1 44.6 1.0
NC N:BCL282 2.1 43.8 1.0
NB N:BCL282 2.1 46.8 1.0
NE2 O:HIS182 2.4 39.8 1.0
C4A N:BCL282 3.0 44.7 1.0
C4D N:BCL282 3.0 45.2 1.0
C1D N:BCL282 3.1 46.2 1.0
C1C N:BCL282 3.1 42.9 1.0
C4C N:BCL282 3.1 43.3 1.0
C1B N:BCL282 3.1 45.2 1.0
C1A N:BCL282 3.1 46.4 1.0
C4B N:BCL282 3.1 45.0 1.0
CE1 O:HIS182 3.3 42.0 1.0
CD2 O:HIS182 3.3 38.7 1.0
CHC N:BCL282 3.4 44.6 1.0
CHB N:BCL282 3.4 44.7 1.0
CHD N:BCL282 3.4 44.0 1.0
CHA N:BCL282 3.4 45.6 1.0
C2D N:BCL282 4.2 47.3 1.0
C3D N:BCL282 4.3 45.8 1.0
C2B N:BCL282 4.3 45.0 1.0
C3B N:BCL282 4.3 45.6 1.0
C3A N:BCL282 4.4 45.4 1.0
C2C N:BCL282 4.4 40.4 1.0
C2A N:BCL282 4.4 46.1 1.0
CBB O:BPH310 4.4 50.7 1.0
C3C N:BCL282 4.4 40.1 1.0
ND1 O:HIS182 4.4 40.0 1.0
CG O:HIS182 4.5 40.5 1.0
CE2 N:PHE181 4.6 41.2 1.0
CBD N:BCL282 4.9 46.5 1.0

Magnesium binding site 6 out of 8 in 1aig

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Magnesium binding site 6 out of 8 in the Photosynthetic Reaction Center From Rhodobacter Sphaeroides in the D+Qb-Charge Separated State


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 6 of Photosynthetic Reaction Center From Rhodobacter Sphaeroides in the D+Qb-Charge Separated State within 5.0Å range:
probe atom residue distance (Å) B Occ
N:Mg283

b:54.4
occ:1.00
 MG N:BCL283 0.0 54.4 1.0
ND N:BCL283 2.0 54.4 1.0
NC N:BCL283 2.1 52.5 1.0
NB N:BCL283 2.1 52.1 1.0
NA N:BCL283 2.1 55.5 1.0
NE2 N:HIS173 2.2 39.1 1.0
C4A N:BCL283 3.0 53.9 1.0
CE1 N:HIS173 3.0 38.9 1.0
C4C N:BCL283 3.0 52.5 1.0
C1B N:BCL283 3.1 52.3 1.0
C1C N:BCL283 3.1 50.1 1.0
C4D N:BCL283 3.1 55.0 1.0
C1D N:BCL283 3.1 55.6 1.0
OBB O:BCL309 3.1 60.1 1.0
C4B N:BCL283 3.1 51.0 1.0
C1A N:BCL283 3.2 54.6 1.0
CD2 N:HIS173 3.3 41.1 1.0
CHB N:BCL283 3.4 52.8 1.0
CHD N:BCL283 3.4 55.4 1.0
CAB O:BCL309 3.4 55.3 1.0
CHC N:BCL283 3.4 50.0 1.0
CHA N:BCL283 3.5 55.1 1.0
CBB O:BCL309 3.6 53.9 1.0
ND1 N:HIS173 4.2 41.1 1.0
C2D N:BCL283 4.3 56.2 1.0
C2B N:BCL283 4.3 51.7 1.0
C3B N:BCL283 4.3 50.5 1.0
C3D N:BCL283 4.3 56.1 1.0
C3B O:BCL309 4.3 53.2 1.0
CG N:HIS173 4.4 41.0 1.0
C3A N:BCL283 4.4 53.3 1.0
C3C N:BCL283 4.4 51.1 1.0
C2C N:BCL283 4.4 50.2 1.0
C2A N:BCL283 4.4 53.3 1.0
CD2 N:PHE167 4.8 54.3 1.0
CBD N:BCL283 5.0 53.3 1.0

Magnesium binding site 7 out of 8 in 1aig

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Magnesium binding site 7 out of 8 in the Photosynthetic Reaction Center From Rhodobacter Sphaeroides in the D+Qb-Charge Separated State


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 7 of Photosynthetic Reaction Center From Rhodobacter Sphaeroides in the D+Qb-Charge Separated State within 5.0Å range:
probe atom residue distance (Å) B Occ
N:Mg284

b:39.1
occ:1.00
 MG N:BCL284 0.0 39.1 1.0
NC N:BCL284 2.0 37.2 1.0
ND N:BCL284 2.0 41.2 1.0
NA N:BCL284 2.0 39.2 1.0
NB N:BCL284 2.1 38.2 1.0
NE2 N:HIS153 2.7 53.0 1.0
C4A N:BCL284 3.0 41.8 1.0
C4C N:BCL284 3.0 38.4 1.0
C1C N:BCL284 3.0 38.4 1.0
C4D N:BCL284 3.0 44.1 1.0
C1B N:BCL284 3.1 37.8 1.0
C1D N:BCL284 3.1 40.9 1.0
C4B N:BCL284 3.1 39.0 1.0
C1A N:BCL284 3.1 42.0 1.0
CHB N:BCL284 3.3 39.9 1.0
CHC N:BCL284 3.4 39.4 1.0
CHD N:BCL284 3.4 38.6 1.0
CD2 N:HIS153 3.4 52.8 1.0
CHA N:BCL284 3.4 44.2 1.0
CE1 N:HIS153 3.7 51.9 1.0
C2D N:BCL284 4.2 42.0 1.0
C2B N:BCL284 4.3 37.7 1.0
C3C N:BCL284 4.3 39.9 1.0
C2C N:BCL284 4.3 38.7 1.0
C3D N:BCL284 4.3 44.1 1.0
C3B N:BCL284 4.3 38.6 1.0
C3A N:BCL284 4.3 43.9 1.0
C2A N:BCL284 4.4 42.7 1.0
CE2 O:TYR210 4.6 44.2 1.0
OBB N:BPH285 4.6 55.2 1.0
CG N:HIS153 4.7 52.9 1.0
ND1 N:HIS153 4.8 51.4 1.0
CBA N:BCL284 4.8 52.5 1.0
C19 N:BPH285 4.8 38.4 1.0
CBC N:BCL284 4.8 39.6 1.0
CBD N:BCL284 4.9 45.8 1.0

Magnesium binding site 8 out of 8 in 1aig

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Magnesium binding site 8 out of 8 in the Photosynthetic Reaction Center From Rhodobacter Sphaeroides in the D+Qb-Charge Separated State


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 8 of Photosynthetic Reaction Center From Rhodobacter Sphaeroides in the D+Qb-Charge Separated State within 5.0Å range:
probe atom residue distance (Å) B Occ
O:Mg309

b:51.2
occ:1.00
 MG O:BCL309 0.0 51.2 1.0
ND O:BCL309 2.0 50.5 1.0
NB O:BCL309 2.1 52.3 1.0
NC O:BCL309 2.1 51.8 1.0
NA O:BCL309 2.1 50.3 1.0
NE2 O:HIS202 2.2 42.1 1.0
C4D O:BCL309 3.0 50.9 1.0
C4A O:BCL309 3.1 49.7 1.0
C1D O:BCL309 3.1 51.2 1.0
C1B O:BCL309 3.1 51.0 1.0
C1C O:BCL309 3.1 49.8 1.0
C4C O:BCL309 3.1 50.6 1.0
C4B O:BCL309 3.1 53.0 1.0
C1A O:BCL309 3.1 49.4 1.0
CE1 O:HIS202 3.1 41.9 1.0
CD2 O:HIS202 3.2 43.5 1.0
CHB O:BCL309 3.4 50.0 1.0
CHC O:BCL309 3.4 52.0 1.0
CHD O:BCL309 3.4 51.0 1.0
CHA O:BCL309 3.4 50.3 1.0
CBB N:BCL283 3.5 44.4 1.0
OBB N:BCL283 3.5 47.2 1.0
CAB N:BCL283 3.5 48.6 1.0
C2D O:BCL309 4.2 51.5 1.0
C3B N:BCL283 4.3 50.5 1.0
C2B O:BCL309 4.3 51.9 1.0
C3B O:BCL309 4.3 53.2 1.0
C3D O:BCL309 4.3 51.9 1.0
ND1 O:HIS202 4.3 43.4 1.0
CG O:HIS202 4.4 44.0 1.0
C3A O:BCL309 4.4 49.2 1.0
C2C O:BCL309 4.4 48.3 1.0
C3C O:BCL309 4.4 48.6 1.0
C2A O:BCL309 4.4 48.4 1.0
CBD O:BCL309 4.9 50.8 1.0
C4B N:BCL283 5.0 51.0 1.0
C2B N:BCL283 5.0 51.7 1.0

Reference:

M.H.Stowell, T.M.Mcphillips, D.C.Rees, S.M.Soltis, E.Abresch, G.Feher. Light-Induced Structural Changes in Photosynthetic Reaction Center: Implications For Mechanism of Electron-Proton Transfer. Science V. 276 812 1997.
ISSN: ISSN 0036-8075
PubMed: 9115209
DOI: 10.1126/SCIENCE.276.5313.812
Page generated: Sat Aug 9 20:05:21 2025

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