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Calcium in PDB 1wo2: Crystal Structure of the Pig Pancreatic Alpha-Amylase Complexed with Malto-Oligosaacharides Under the Effect of the Chloride Ion

Enzymatic activity of Crystal Structure of the Pig Pancreatic Alpha-Amylase Complexed with Malto-Oligosaacharides Under the Effect of the Chloride Ion

All present enzymatic activity of Crystal Structure of the Pig Pancreatic Alpha-Amylase Complexed with Malto-Oligosaacharides Under the Effect of the Chloride Ion:
3.2.1.1;

Protein crystallography data

The structure of Crystal Structure of the Pig Pancreatic Alpha-Amylase Complexed with Malto-Oligosaacharides Under the Effect of the Chloride Ion, PDB code: 1wo2 was solved by M.Qian, F.Payan, V.Nahoum, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å) 20.00 / 2.01
Space group P 21 21 21
Cell size a, b, c (Å), α, β, γ (°) 70.090, 113.298, 117.221, 90.00, 90.00, 90.00
R / Rfree (%) 15.9 / 18.4

Other elements in 1wo2:

The structure of Crystal Structure of the Pig Pancreatic Alpha-Amylase Complexed with Malto-Oligosaacharides Under the Effect of the Chloride Ion also contains other interesting chemical elements:

Chlorine (Cl) 1 atom

Calcium Binding Sites:

The binding sites of Calcium atom in the Crystal Structure of the Pig Pancreatic Alpha-Amylase Complexed with Malto-Oligosaacharides Under the Effect of the Chloride Ion (pdb code 1wo2). 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 Crystal Structure of the Pig Pancreatic Alpha-Amylase Complexed with Malto-Oligosaacharides Under the Effect of the Chloride Ion, PDB code: 1wo2:

Calcium binding site 1 out of 1 in 1wo2

Go back to Calcium Binding Sites List in 1wo2
Calcium binding site 1 out of 1 in the Crystal Structure of the Pig Pancreatic Alpha-Amylase Complexed with Malto-Oligosaacharides Under the Effect of the Chloride Ion


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of Crystal Structure of the Pig Pancreatic Alpha-Amylase Complexed with Malto-Oligosaacharides Under the Effect of the Chloride Ion within 5.0Å range:
probe atom residue distance (Å) B Occ
A:Ca500

b:11.2
occ:1.00
 O A:ARG158 2.4 9.3 1.0
O A:HIS201 2.4 11.9 1.0
OD1 A:ASN100 2.4 11.2 1.0
O A:HOH527 2.4 8.2 1.0
OD2 A:ASP167 2.5 13.0 1.0
OD1 A:ASP167 2.5 11.3 1.0
O A:HOH539 2.6 10.7 1.0
O A:HOH520 2.6 9.2 1.0
CG A:ASP167 2.8 12.3 1.0
C A:ARG158 3.4 12.0 1.0
CG A:ASN100 3.5 10.9 1.0
C A:HIS201 3.6 10.6 1.0
ND2 A:ASN100 3.9 8.7 1.0
CA A:ARG158 4.1 12.5 1.0
CB A:HIS201 4.3 8.3 1.0
O A:ASN100 4.3 10.6 1.0
CB A:ASP167 4.4 10.6 1.0
O A:HOH556 4.4 11.6 1.0
OD1 A:ASN137 4.4 17.2 1.0
N A:ASP159 4.5 12.1 1.0
CA A:HIS201 4.5 9.7 1.0
N A:MET202 4.5 10.4 1.0
CG A:MET202 4.5 10.1 1.0
O A:CYS160 4.6 12.2 1.0
CA A:MET202 4.6 10.6 1.0
O A:VAL157 4.7 10.8 1.0
CA A:ASP159 4.7 13.8 1.0
CB A:ASN100 4.8 8.9 1.0
O A:LEU168 4.8 11.0 1.0

Reference:

M.Qian, E.H.Ajandouz, F.Payan, V.Nahoum. Molecular Basis of the Effects of Chloride Ion on the Acid-Base Catalyst in the Mechanism of Pancreatic Alpha-Amylase Biochemistry V. 44 3194 2005.
ISSN: ISSN 0006-2960
PubMed: 15736930
DOI: 10.1021/BI048201T
Page generated: Fri Jul 12 07:14:14 2024

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