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Calcium in PDB 1hny: The Structure of Human Pancreatic Alpha-Amylase at 1.8 Angstroms Resolution and Comparisons with Related Enzymes

Enzymatic activity of The Structure of Human Pancreatic Alpha-Amylase at 1.8 Angstroms Resolution and Comparisons with Related Enzymes

All present enzymatic activity of The Structure of Human Pancreatic Alpha-Amylase at 1.8 Angstroms Resolution and Comparisons with Related Enzymes:
3.2.1.1;

Protein crystallography data

The structure of The Structure of Human Pancreatic Alpha-Amylase at 1.8 Angstroms Resolution and Comparisons with Related Enzymes, PDB code: 1hny was solved by Y.Luo, G.D.Brayer, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å) 8.00 / 1.80
Space group P 21 21 21
Cell size a, b, c (Å), α, β, γ (°) 53.040, 74.800, 137.340, 90.00, 90.00, 90.00
R / Rfree (%) n/a / n/a

Other elements in 1hny:

The structure of The Structure of Human Pancreatic Alpha-Amylase at 1.8 Angstroms Resolution and Comparisons with Related Enzymes also contains other interesting chemical elements:

Chlorine (Cl) 1 atom

Calcium Binding Sites:

The binding sites of Calcium atom in the The Structure of Human Pancreatic Alpha-Amylase at 1.8 Angstroms Resolution and Comparisons with Related Enzymes (pdb code 1hny). 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 The Structure of Human Pancreatic Alpha-Amylase at 1.8 Angstroms Resolution and Comparisons with Related Enzymes, PDB code: 1hny:

Calcium binding site 1 out of 1 in 1hny

Go back to Calcium Binding Sites List in 1hny
Calcium binding site 1 out of 1 in the The Structure of Human Pancreatic Alpha-Amylase at 1.8 Angstroms Resolution and Comparisons with Related Enzymes


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of The Structure of Human Pancreatic Alpha-Amylase at 1.8 Angstroms Resolution and Comparisons with Related Enzymes within 5.0Å range:
probe atom residue distance (Å) B Occ
A:Ca497

b:20.7
occ:1.00
 OD1 A:ASN100 2.3 19.6 1.0
O A:HIS201 2.4 18.9 1.0
O A:HOH843 2.5 21.0 1.0
OD1 A:ASP167 2.5 24.1 1.0
O A:HOH806 2.5 22.7 1.0
O A:ARG158 2.5 25.3 1.0
OD2 A:ASP167 2.6 23.4 1.0
O A:HOH839 2.6 15.1 1.0
CG A:ASP167 2.9 27.7 1.0
CG A:ASN100 3.4 22.8 1.0
C A:ARG158 3.5 25.3 1.0
C A:HIS201 3.6 19.1 1.0
ND2 A:ASN100 3.9 20.6 1.0
CA A:ARG158 4.0 24.8 1.0
CB A:HIS201 4.2 21.0 1.0
O A:ASN100 4.3 20.1 1.0
CA A:HIS201 4.4 18.5 1.0
CB A:ASP167 4.4 25.2 1.0
N A:MET202 4.5 18.2 1.0
O A:HOH629 4.6 27.6 1.0
N A:ASP159 4.6 27.1 1.0
CA A:MET202 4.6 19.0 1.0
ND2 A:ASN137 4.6 23.2 1.0
O A:VAL157 4.6 25.7 1.0
CG A:MET202 4.7 23.2 1.0
O A:CYS160 4.7 28.0 1.0
CB A:ASN100 4.7 18.5 1.0
O A:LEU168 4.8 18.6 1.0
CB A:ARG158 4.8 23.2 1.0
O A:HOH611 4.8 17.1 1.0
CA A:ASP159 4.8 28.6 1.0

Reference:

G.D.Brayer, Y.Luo, S.G.Withers. The Structure of Human Pancreatic Alpha-Amylase at 1.8 A Resolution and Comparisons with Related Enzymes. Protein Sci. V. 4 1730 1995.
ISSN: ISSN 0961-8368
PubMed: 8528071
Page generated: Mon Jul 7 15:39:49 2025

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