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Calcium in PDB 1jxk: Role of Ethe Mobile Loop in the Mehanism of Human Salivary Amylase

Enzymatic activity of Role of Ethe Mobile Loop in the Mehanism of Human Salivary Amylase

All present enzymatic activity of Role of Ethe Mobile Loop in the Mehanism of Human Salivary Amylase:
3.2.1.1;

Protein crystallography data

The structure of Role of Ethe Mobile Loop in the Mehanism of Human Salivary Amylase, PDB code: 1jxk was solved by N.Ramasubbu, C.Ragunath, Z.Wang, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å) 67.42 / 1.90
Space group P 21 21 21
Cell size a, b, c (Å), α, β, γ (°) 52.900, 75.737, 134.554, 90.00, 90.00, 90.00
R / Rfree (%) 17.3 / 20

Other elements in 1jxk:

The structure of Role of Ethe Mobile Loop in the Mehanism of Human Salivary Amylase also contains other interesting chemical elements:

Chlorine (Cl) 1 atom

Calcium Binding Sites:

The binding sites of Calcium atom in the Role of Ethe Mobile Loop in the Mehanism of Human Salivary Amylase (pdb code 1jxk). 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 Role of Ethe Mobile Loop in the Mehanism of Human Salivary Amylase, PDB code: 1jxk:

Calcium binding site 1 out of 1 in 1jxk

Go back to Calcium Binding Sites List in 1jxk
Calcium binding site 1 out of 1 in the Role of Ethe Mobile Loop in the Mehanism of 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 Role of Ethe Mobile Loop in the Mehanism of Human Salivary Amylase within 5.0Å range:
probe atom residue distance (Å) B Occ
A:Ca492

b:14.6
occ:1.00
 O A:ARG158 2.4 16.9 1.0
OD1 A:ASN100 2.4 13.7 1.0
O A:HIS201 2.4 14.1 1.0
O A:HOH618 2.4 18.6 1.0
O A:HOH606 2.5 17.9 1.0
OD1 A:ASP167 2.5 16.9 1.0
OD2 A:ASP167 2.6 16.2 1.0
O A:HOH520 2.6 11.4 1.0
CG A:ASP167 2.9 17.0 1.0
CG A:ASN100 3.4 14.6 1.0
C A:ARG158 3.5 17.6 1.0
C A:HIS201 3.6 14.1 1.0
ND2 A:ASN100 3.8 13.7 1.0
CA A:ARG158 4.2 17.5 1.0
CB A:HIS201 4.2 14.6 1.0
O A:ASN100 4.3 13.3 1.0
CB A:ASP167 4.4 16.3 1.0
CA A:HIS201 4.4 14.5 1.0
ND2 A:ASN137 4.5 17.9 1.0
N A:ASP159 4.5 18.2 1.0
N A:MET202 4.5 14.2 1.0
O A:CYS160 4.5 19.5 1.0
O A:HOH624 4.6 19.1 1.0
CA A:MET202 4.6 14.5 1.0
CG A:MET202 4.7 13.5 1.0
O A:VAL157 4.7 18.8 1.0
CA A:ASP159 4.8 18.5 1.0
CB A:ASN100 4.8 13.2 1.0
O A:LEU168 4.8 15.4 1.0
C A:ASP159 5.0 18.6 1.0

Reference:

N.Ramasubbu, C.Ragunath, P.J.Mishra. Probing the Role of A Mobile Loop in Substrate Binding and Enzyme Activity of Human Salivary Amylase J.Mol.Biol. V. 325 1061 2003.
ISSN: ISSN 0022-2836
PubMed: 12527308
DOI: 10.1016/S0022-2836(02)01326-8
Page generated: Mon Jul 7 16:16:16 2025

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