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Calcium in PDB 8aci: Structure of Arg-117 Fab in Complex with A Fragment of Complement C2, Neutral pH

Protein crystallography data

The structure of Structure of Arg-117 Fab in Complex with A Fragment of Complement C2, Neutral pH, PDB code: 8aci was solved by H.G.Olesen, G.R.Andersen, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å) 44.16 / 1.85
Space group P 21 21 21
Cell size a, b, c (Å), α, β, γ (°) 71.59, 88.76, 144.78, 90, 90, 90
R / Rfree (%) 18.7 / 19.9

Other elements in 8aci:

The structure of Structure of Arg-117 Fab in Complex with A Fragment of Complement C2, Neutral pH also contains other interesting chemical elements:

Chlorine (Cl) 1 atom

Calcium Binding Sites:

The binding sites of Calcium atom in the Structure of Arg-117 Fab in Complex with A Fragment of Complement C2, Neutral pH (pdb code 8aci). This binding sites where shown within 5.0 Angstroms radius around Calcium atom.
In total only one binding site of Calcium was determined in the Structure of Arg-117 Fab in Complex with A Fragment of Complement C2, Neutral pH, PDB code: 8aci:

Calcium binding site 1 out of 1 in 8aci

Go back to Calcium Binding Sites List in 8aci
Calcium binding site 1 out of 1 in the Structure of Arg-117 Fab in Complex with A Fragment of Complement C2, Neutral pH


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of Structure of Arg-117 Fab in Complex with A Fragment of Complement C2, Neutral pH within 5.0Å range:
probe atom residue distance (Å) B Occ
H:Ca301

b:39.6
occ:1.00
OD1 H:ASP103 2.2 37.9 1.0
OE1 H:GLU99 2.2 37.2 1.0
O H:HOH447 2.4 37.3 1.0
O A:ARG103 2.4 32.8 1.0
O H:HOH432 2.5 39.3 1.0
OH L:TYR100 2.7 41.3 1.0
HH L:TYR100 2.8 49.8 1.0
HB3 H:GLU99 3.2 45.0 1.0
CG H:ASP103 3.3 42.4 1.0
HD22 H:ASN33 3.4 49.0 1.0
CD H:GLU99 3.4 39.0 1.0
HD23 A:LEU104 3.5 42.6 1.0
C A:ARG103 3.6 34.7 1.0
OD2 H:ASP103 3.6 41.4 1.0
CZ L:TYR100 3.6 44.9 1.0
HA A:LEU104 3.7 44.9 1.0
HE2 L:TYR100 3.8 54.1 1.0
HB2 H:GLU99 3.8 45.0 1.0
HB3 A:ARG103 3.8 45.7 1.0
CB H:GLU99 3.9 37.3 1.0
CE2 L:TYR100 4.1 44.9 1.0
HA H:ASP103 4.1 42.9 1.0
HB2 H:ASN33 4.2 44.8 1.0
HG2 A:ARG103 4.2 48.6 1.0
ND2 H:ASN33 4.2 40.7 1.0
CG H:GLU99 4.2 38.0 1.0
CD2 A:LEU104 4.4 35.3 1.0
OD2 H:ASP35 4.4 41.2 1.0
OE2 H:GLU99 4.4 37.7 1.0
OD1 H:ASP35 4.4 39.1 1.0
N A:LEU104 4.5 34.7 1.0
CA A:LEU104 4.5 37.3 1.0
O H:HOH435 4.5 47.4 1.0
CB A:ARG103 4.5 38.0 1.0
H A:ARG103 4.5 43.6 1.0
HD3 A:ARG103 4.6 54.2 1.0
CA A:ARG103 4.6 36.4 1.0
CB H:ASP103 4.6 36.9 1.0
HD22 A:LEU104 4.6 42.6 1.0
HD21 H:ASN33 4.6 49.0 1.0
O H:HOH414 4.7 41.2 1.0
CE1 L:TYR100 4.7 46.4 1.0
HG3 H:GLU99 4.8 45.8 1.0
CG A:ARG103 4.8 40.4 1.0
CG H:ASP35 4.8 37.0 1.0
HD21 A:LEU104 4.8 42.6 1.0
CA H:ASP103 4.8 36.4 1.0
HE1 L:TYR100 4.8 55.9 1.0
OD2 H:ASP50 4.9 45.2 1.0
HG2 H:GLU99 4.9 45.8 1.0
N A:ARG103 4.9 36.2 1.0
CB H:ASN33 5.0 37.1 1.0
HB2 H:ASP103 5.0 43.3 1.0

Reference:

H.G.Olesen, G.R.Andersen. Structure-Function Analysis of Argx-117, A Calcium- and pH-Dependent Clinical Phase Complement C2 Blocking Antibody To Be Published.
Page generated: Thu Jul 10 03:08:03 2025

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