Chlorine in PDB 1ua3: Crystal Structure of the Pig Pancreatic A-Amylase Complexed with Malto-Oligosaccharides

All present enzymatic activity of Crystal Structure of the Pig Pancreatic A-Amylase Complexed with Malto-Oligosaccharides:
3.2.1.1;

The structure of Crystal Structure of the Pig Pancreatic A-Amylase Complexed with Malto-Oligosaccharides, PDB code: 1ua3 was solved by F.Payan, M.Qian, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	30.00 / 2.01
Space group	P 21 21 21
Cell size a, b, c (Å), α, β, γ (°)	69.781, 113.183, 116.924, 90.00, 90.00, 90.00
R / Rfree (%)	17.5 / 19.6

The structure of Crystal Structure of the Pig Pancreatic A-Amylase Complexed with Malto-Oligosaccharides also contains other interesting chemical elements:

Calcium

(Ca)

1 atom

The binding sites of Chlorine atom in the Crystal Structure of the Pig Pancreatic A-Amylase Complexed with Malto-Oligosaccharides (pdb code 1ua3). This binding sites where shown within 5.0 Angstroms radius around Chlorine atom.
In total 2 binding sites of Chlorine where determined in the Crystal Structure of the Pig Pancreatic A-Amylase Complexed with Malto-Oligosaccharides, PDB code: 1ua3:
Jump to Chlorine binding site number: 1; 2;

Chlorine binding site 1 out of 2 in the Crystal Structure of the Pig Pancreatic A-Amylase Complexed with Malto-Oligosaccharides


Mono view


Stereo pair view

A full contact list of Chlorine with other atoms in the Cl binding site number 1 of Crystal Structure of the Pig Pancreatic A-Amylase Complexed with Malto-Oligosaccharides within 5.0Å range: probe atom residue distance (Å) B Occ A:Cl498 b:15.4 occ:1.00 NE A:ARG195 3.1 13.5 1.0 NH2 A:ARG337 3.2 13.0 1.0 O A:HOH525 3.3 15.1 1.0 NH1 A:ARG195 3.3 13.9 1.0 ND2 A:ASN298 3.3 15.4 1.0 NH1 A:ARG337 3.4 12.5 1.0 CZ A:ARG195 3.7 13.8 1.0 CZ A:ARG337 3.7 13.5 1.0 CG2 A:THR254 3.9 15.4 1.0 CG A:GLU233 3.9 15.7 1.0 CZ A:PHE256 4.1 15.6 1.0 CD A:ARG195 4.3 14.1 1.0 CG A:ASN298 4.3 15.4 1.0 CB A:ASN298 4.3 14.9 1.0 CB A:GLU233 4.5 15.6 1.0 CE2 A:PHE256 4.6 15.7 1.0 O A:HOH1048 4.7 15.6 1.0 CD A:GLU233 4.8 15.9 1.0 CZ A:PHE295 4.8 14.8 1.0 CG A:ARG195 4.8 14.7 1.0 CB A:THR254 4.9 15.5 1.0 OE1 A:GLU233 4.9 15.3 1.0 NH2 A:ARG195 5.0 13.2 1.0

Chlorine binding site 2 out of 2 in the Crystal Structure of the Pig Pancreatic A-Amylase Complexed with Malto-Oligosaccharides


Mono view


Stereo pair view

A full contact list of Chlorine with other atoms in the Cl binding site number 2 of Crystal Structure of the Pig Pancreatic A-Amylase Complexed with Malto-Oligosaccharides within 5.0Å range: probe atom residue distance (Å) B Occ A:Cl499 b:33.5 occ:0.71 N A:GLY205 2.8 17.2 1.0 C6 A:BGC1997 3.3 47.1 1.0 CD A:PRO204 3.5 17.0 1.0 N A:PRO204 3.5 16.8 1.0 CA A:GLY205 3.5 17.1 1.0 CB A:TRP203 3.6 16.1 1.0 C A:PRO204 3.8 17.0 1.0 CB A:PRO204 3.9 16.9 1.0 C A:TRP203 3.9 16.4 1.0 CA A:PRO204 3.9 16.9 1.0 O6 A:BGC1997 3.9 47.2 1.0 O5 A:BGC1997 4.0 47.6 1.0 CG A:PRO204 4.1 16.8 1.0 CE3 A:TRP203 4.1 15.8 1.0 CA A:TRP203 4.1 16.4 1.0 C5 A:BGC1997 4.3 47.1 1.0 CG A:TRP203 4.5 16.4 1.0 O A:HOH789 4.5 33.4 1.0 O A:TRP203 4.6 16.4 1.0 CD2 A:TRP203 4.6 16.2 1.0 C A:GLY205 4.6 17.0 1.0 O A:HOH781 4.7 30.6 1.0 N A:ASP206 4.7 16.9 1.0 O A:HOH1082 4.7 61.9 1.0 O A:PRO204 5.0 17.1 1.0

F.Payan, M.Qian. Crystal Structure of the Pig Pancreatic Alpha-Amylase Complexed with Malto-Oligosaccharides J.Protein Chem. V. 22 275 2003.
ISSN: ISSN 0277-8033
PubMed: 12962327
DOI: 10.1023/A:1025072520607