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Calcium in PDB 3dhp: Probing the Role of Aromatic Residues at the Secondary Saccharide Binding Sites of Human Salivary Alpha-Amylase in Substrate Hydrolysis and Bacterial Binding

Enzymatic activity of Probing the Role of Aromatic Residues at the Secondary Saccharide Binding Sites of Human Salivary Alpha-Amylase in Substrate Hydrolysis and Bacterial Binding

All present enzymatic activity of Probing the Role of Aromatic Residues at the Secondary Saccharide Binding Sites of Human Salivary Alpha-Amylase in Substrate Hydrolysis and Bacterial Binding:
3.2.1.1;

Protein crystallography data

The structure of Probing the Role of Aromatic Residues at the Secondary Saccharide Binding Sites of Human Salivary Alpha-Amylase in Substrate Hydrolysis and Bacterial Binding, PDB code: 3dhp was solved by C.Ragunath, S.G.A.Manuel, H.M.Sait, C.Kasinathan, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å) 30.95 / 1.50
Space group P 21 21 21
Cell size a, b, c (Å), α, β, γ (°) 52.736, 73.722, 134.095, 90.00, 90.00, 90.00
R / Rfree (%) 16.9 / 18.6

Other elements in 3dhp:

The structure of Probing the Role of Aromatic Residues at the Secondary Saccharide Binding Sites of Human Salivary Alpha-Amylase in Substrate Hydrolysis and Bacterial Binding also contains other interesting chemical elements:

Chlorine (Cl) 1 atom

Calcium Binding Sites:

The binding sites of Calcium atom in the Probing the Role of Aromatic Residues at the Secondary Saccharide Binding Sites of Human Salivary Alpha-Amylase in Substrate Hydrolysis and Bacterial Binding (pdb code 3dhp). 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 Probing the Role of Aromatic Residues at the Secondary Saccharide Binding Sites of Human Salivary Alpha-Amylase in Substrate Hydrolysis and Bacterial Binding, PDB code: 3dhp:

Calcium binding site 1 out of 1 in 3dhp

Go back to Calcium Binding Sites List in 3dhp
Calcium binding site 1 out of 1 in the Probing the Role of Aromatic Residues at the Secondary Saccharide Binding Sites of Human Salivary Alpha-Amylase in Substrate Hydrolysis and Bacterial Binding


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of Probing the Role of Aromatic Residues at the Secondary Saccharide Binding Sites of Human Salivary Alpha-Amylase in Substrate Hydrolysis and Bacterial Binding within 5.0Å range:
probe atom residue distance (Å) B Occ
A:Ca497

b:19.1
occ:1.00
 O A:HIS201 2.4 18.2 1.0
O A:HOH536 2.4 20.5 1.0
O A:ARG158 2.4 20.7 1.0
OD1 A:ASN100 2.5 18.4 1.0
O A:HOH529 2.5 20.6 1.0
O A:HOH562 2.5 24.4 1.0
OD2 A:ASP167 2.5 19.4 1.0
OD1 A:ASP167 2.6 19.9 1.0
CG A:ASP167 2.9 18.6 1.0
C A:ARG158 3.5 21.3 1.0
CG A:ASN100 3.5 17.9 1.0
C A:HIS201 3.6 17.4 1.0
ND2 A:ASN100 4.0 17.8 1.0
CA A:ARG158 4.1 20.6 1.0
CB A:HIS201 4.2 17.0 1.0
CA A:HIS201 4.4 18.1 1.0
O A:ASN100 4.4 18.2 1.0
CB A:ASP167 4.4 19.3 1.0
N A:MET202 4.6 18.8 1.0
N A:ASP159 4.6 21.9 1.0
ND2 A:ASN137 4.6 25.1 1.0
O A:VAL157 4.7 20.0 1.0
O A:CYS160 4.7 21.6 1.0
O A:HOH818 4.7 38.0 1.0
CG A:MET202 4.7 22.2 1.0
O A:LEU168 4.7 20.3 1.0
CA A:MET202 4.7 19.7 1.0
CB A:ASN100 4.8 17.7 1.0
CA A:ASP159 4.9 22.8 1.0

Reference:

C.Ragunath, S.G.A Manuel, H.M.Sait, C.Kasinathan, N.Ramasubbu. Probing the Role of Aromatic Residues To Be Published.
Page generated: Tue Jul 8 11:39:00 2025

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