Chlorine in PDB 1dhk: Structure of Porcine Pancreatic Alpha-Amylase

All present enzymatic activity of Structure of Porcine Pancreatic Alpha-Amylase:
3.2.1.1;

The structure of Structure of Porcine Pancreatic Alpha-Amylase, PDB code: 1dhk was solved by C.Bompard-Gilles, F.Payan, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	8.00 / 1.85
Space group	C 1 2 1
Cell size a, b, c (Å), α, β, γ (°)	151.600, 79.400, 68.000, 90.00, 91.54, 90.00
R / Rfree (%)	18.3 / 22

The structure of Structure of Porcine Pancreatic Alpha-Amylase also contains other interesting chemical elements:

Calcium

(Ca)

3 atoms

The binding sites of Chlorine atom in the Structure of Porcine Pancreatic Alpha-Amylase (pdb code 1dhk). This binding sites where shown within 5.0 Angstroms radius around Chlorine atom.
In total only one binding site of Chlorine was determined in the Structure of Porcine Pancreatic Alpha-Amylase, PDB code: 1dhk:

Chlorine binding site 1 out of 1 in the Structure of Porcine Pancreatic Alpha-Amylase


Mono view


Stereo pair view

A full contact list of Chlorine with other atoms in the Cl binding site number 1 of Structure of Porcine Pancreatic Alpha-Amylase within 5.0Å range: probe atom residue distance (Å) B Occ A:Cl498 b:11.8 occ:1.00 HH22 A:ARG337 1.9 0.0 1.0 HD22 A:ASN298 2.1 0.0 1.0 HH12 A:ARG337 2.3 0.0 1.0 H2 A:HOH523 2.4 0.0 1.0 HE A:ARG195 2.5 0.0 1.0 HH21 A:ARG195 2.6 0.0 1.0 H1 A:HOH523 2.6 0.0 1.0 O A:HOH523 2.7 12.5 1.0 NH2 A:ARG337 2.7 13.6 1.0 ND2 A:ASN298 3.0 9.8 1.0 NH1 A:ARG337 3.0 12.4 1.0 CZ A:ARG337 3.3 14.5 1.0 NE A:ARG195 3.4 11.0 1.0 NH2 A:ARG195 3.5 12.2 1.0 HH21 A:ARG337 3.5 0.0 1.0 HD21 A:ASN298 3.6 0.0 1.0 CB A:ASN298 3.9 9.2 1.0 CZ A:ARG195 3.9 13.0 1.0 HH11 A:ARG337 3.9 0.0 1.0 CG A:ASN298 3.9 7.9 1.0 H1 A:HOH519 4.0 0.0 1.0 HD1 A:HIS299 4.1 0.0 1.0 HE21 A:GLN41 4.2 0.0 1.0 HH22 A:ARG195 4.3 0.0 1.0 HH B:TYR37 4.4 0.0 1.0 CG2 A:THR254 4.4 9.7 1.0 CD A:ARG195 4.5 10.7 1.0 O A:HOH519 4.5 13.1 1.0 H2 A:HOH519 4.5 0.0 1.0 CZ A:PHE256 4.5 9.4 1.0 NE A:ARG337 4.6 14.0 1.0 CE1 A:HIS299 4.6 10.9 1.0 ND1 A:HIS299 4.7 10.4 1.0 OH B:TYR37 4.8 10.4 1.0 CG A:GLU233 4.9 12.1 1.0 CZ A:PHE295 4.9 9.2 1.0 OE2 A:GLU233 5.0 14.6 1.0 H A:HIS299 5.0 0.0 1.0

C.Bompard-Gilles, P.Rousseau, P.Rouge, F.Payan. Substrate Mimicry in the Active Center of A Mammalian Alpha-Amylase: Structural Analysis of An Enzyme-Inhibitor Complex. Structure V. 4 1441 1996.
ISSN: ISSN 0969-2126
PubMed: 8994970
DOI: 10.1016/S0969-2126(96)00151-7