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Calcium in PDB 1c8q: Structure Solution and Refinement of the Recombinant Human Salivary Amylase

Enzymatic activity of Structure Solution and Refinement of the Recombinant Human Salivary Amylase

All present enzymatic activity of Structure Solution and Refinement of the Recombinant Human Salivary Amylase:
3.2.1.1;

Protein crystallography data

The structure of Structure Solution and Refinement of the Recombinant Human Salivary Amylase, PDB code: 1c8q was solved by N.Ramasubbu, K.Sekar, D.Velmurugan, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å) 9.99 / 2.30
Space group P 21 21 21
Cell size a, b, c (Å), α, β, γ (°) 52.707, 74.768, 133.337, 90.00, 90.00, 90.00
R / Rfree (%) 17.3 / 21.6

Other elements in 1c8q:

The structure of Structure Solution and Refinement of the Recombinant Human Salivary Amylase also contains other interesting chemical elements:

Chlorine (Cl) 1 atom

Calcium Binding Sites:

The binding sites of Calcium atom in the Structure Solution and Refinement of the Recombinant Human Salivary Amylase (pdb code 1c8q). 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 Solution and Refinement of the Recombinant Human Salivary Amylase, PDB code: 1c8q:

Calcium binding site 1 out of 1 in 1c8q

Go back to Calcium Binding Sites List in 1c8q
Calcium binding site 1 out of 1 in the Structure Solution and Refinement of the Recombinant Human Salivary Amylase


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of Structure Solution and Refinement of the Recombinant Human Salivary Amylase within 5.0Å range:
probe atom residue distance (Å) B Occ
A:Ca497

b:22.7
occ:1.00
 O A:HIS201 2.3 19.9 1.0
O A:ARG158 2.4 18.7 1.0
OD1 A:ASP167 2.4 19.8 1.0
OD1 A:ASN100 2.4 18.3 1.0
OD2 A:ASP167 2.4 23.7 1.0
O A:HOH536 2.4 27.4 1.0
O A:HOH519 2.6 23.0 1.0
O A:HOH554 2.6 23.7 1.0
CG A:ASP167 2.7 21.6 1.0
CG A:ASN100 3.4 18.4 1.0
C A:ARG158 3.5 20.1 1.0
C A:HIS201 3.5 20.5 1.0
ND2 A:ASN100 3.7 16.1 1.0
CA A:ARG158 4.1 20.0 1.0
CB A:HIS201 4.1 21.8 1.0
CB A:ASP167 4.3 20.8 1.0
O A:ASN100 4.3 17.7 1.0
CA A:HIS201 4.4 21.1 1.0
N A:ASP159 4.5 21.6 1.0
N A:MET202 4.5 20.2 1.0
O A:CYS160 4.5 22.1 1.0
ND2 A:ASN137 4.6 30.7 1.0
O A:HOH571 4.6 31.9 1.0
CA A:MET202 4.6 19.3 1.0
CG A:MET202 4.7 17.6 1.0
O A:VAL157 4.7 22.6 1.0
CA A:ASP159 4.7 21.3 1.0
CB A:ASN100 4.8 17.8 1.0
O A:LEU168 4.9 20.0 1.0
O A:HOH547 5.0 24.8 1.0

Reference:

N.Ramasubbu, K.Sekar, D.Velmurugan. Structure Solution and Refinment of Recombinant Human Salivary Amylase To Be Published.
Page generated: Mon Jul 7 13:54:52 2025

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