Chlorine in PDB 8or6: Crystal Structure of Drosophila Melanogaster Alpha-Amylase

All present enzymatic activity of Crystal Structure of Drosophila Melanogaster Alpha-Amylase:
3.2.1.1;

The structure of Crystal Structure of Drosophila Melanogaster Alpha-Amylase, PDB code: 8or6 was solved by N.Aghajari, R.Haser, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	44.78 / 2.50
Space group	P 1 21 1
Cell size a, b, c (Å), α, β, γ (°)	80.44, 73.09, 99.29, 90, 98.27, 90
R / Rfree (%)	20.8 / 26.6

The structure of Crystal Structure of Drosophila Melanogaster Alpha-Amylase also contains other interesting chemical elements:

Strontium

(Sr)

4 atoms

The binding sites of Chlorine atom in the Crystal Structure of Drosophila Melanogaster Alpha-Amylase (pdb code 8or6). 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 Drosophila Melanogaster Alpha-Amylase, PDB code: 8or6:
Jump to Chlorine binding site number: 1; 2;

Chlorine binding site 1 out of 2 in the Crystal Structure of Drosophila Melanogaster Alpha-Amylase


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 Drosophila Melanogaster Alpha-Amylase within 5.0Å range: probe atom residue distance (Å) B Occ A:Cl501 b:25.7 occ:1.00 NH2 A:ARG325 3.1 14.9 1.0 NE A:ARG184 3.3 21.2 1.0 NH1 A:ARG325 3.4 19.3 1.0 NH2 A:ARG184 3.4 22.2 1.0 CZ A:ARG325 3.7 18.6 1.0 ND2 A:ASN286 3.8 21.1 1.0 CG2 A:THR244 3.8 10.9 1.0 CZ A:ARG184 3.8 23.7 1.0 CG A:GLU223 3.9 22.9 1.0 CD A:ARG184 4.4 14.0 1.0 CZ A:PHE246 4.5 16.6 1.0 CE1 A:HIS287 4.6 25.3 1.0 CB A:ASN286 4.6 13.6 1.0 CG A:ASN286 4.6 21.0 1.0 CB A:THR244 4.6 20.4 1.0 CG A:ARG184 4.7 17.3 1.0 CZ A:PHE283 4.8 16.0 1.0 OE2 A:GLU223 4.8 24.9 1.0 CB A:GLU223 4.8 18.7 1.0 CE1 A:PHE283 4.8 17.4 1.0 CD A:GLU223 4.9 24.2 1.0 NE2 A:GLN41 5.0 18.1 1.0

Chlorine binding site 2 out of 2 in the Crystal Structure of Drosophila Melanogaster Alpha-Amylase


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 Drosophila Melanogaster Alpha-Amylase within 5.0Å range: probe atom residue distance (Å) B Occ B:Cl501 b:19.9 occ:1.00 NH2 B:ARG325 3.1 23.4 1.0 NE B:ARG184 3.1 24.8 1.0 O B:HOH720 3.1 15.6 1.0 NH2 B:ARG184 3.3 20.9 1.0 CZ B:ARG184 3.6 26.6 1.0 ND2 B:ASN286 3.7 15.6 1.0 CG2 B:THR244 3.8 9.0 1.0 CG B:GLU223 3.9 24.6 1.0 CZ B:ARG325 4.1 20.8 1.0 CD B:ARG184 4.2 13.3 1.0 NH1 B:ARG325 4.2 18.6 1.0 CZ B:PHE246 4.4 18.2 1.0 CG B:ARG184 4.5 12.5 1.0 CG B:ASN286 4.6 18.4 1.0 CB B:ASN286 4.6 14.5 1.0 CB B:GLU223 4.6 16.0 1.0 O B:HOH639 4.7 23.2 1.0 CB B:THR244 4.7 18.6 1.0 OE2 B:GLU223 4.8 27.6 1.0 CE2 B:PHE246 4.8 14.6 1.0 CD B:GLU223 4.8 23.8 1.0 NH1 B:ARG184 4.9 20.5 1.0 CZ B:PHE283 5.0 21.3 1.0

M.Rhimi, J.L.Da Lage, R.Haser, G.Feller, N.Aghajari. Structural and Functional Characterization of Drosophila Melanogaster Alpha-Amylase. Molecules V. 28 2023.
ISSN: ESSN 1420-3049
PubMed: 37513201
DOI: 10.3390/MOLECULES28145327