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Chlorine in PDB 1xv8: Crystal Structure of Human Salivary Alpha-Amylase Dimer

Enzymatic activity of Crystal Structure of Human Salivary Alpha-Amylase Dimer

All present enzymatic activity of Crystal Structure of Human Salivary Alpha-Amylase Dimer:
3.2.1.1;

Protein crystallography data

The structure of Crystal Structure of Human Salivary Alpha-Amylase Dimer, PDB code: 1xv8 was solved by S.Z.Fisher, L.Govindasamy, C.K.Tu, D.N.Silverman, H.Rajaniemi, R.Mckenna, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å) 20.00 / 3.00
Space group C 1 2 1
Cell size a, b, c (Å), α, β, γ (°) 150.812, 72.270, 91.106, 90.00, 102.80, 90.00
R / Rfree (%) 22.8 / 27.1

Other elements in 1xv8:

The structure of Crystal Structure of Human Salivary Alpha-Amylase Dimer also contains other interesting chemical elements:

Calcium (Ca) 2 atoms

Chlorine Binding Sites:

The binding sites of Chlorine atom in the Crystal Structure of Human Salivary Alpha-Amylase Dimer (pdb code 1xv8). 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 Human Salivary Alpha-Amylase Dimer, PDB code: 1xv8:
Jump to Chlorine binding site number: 1; 2;

Chlorine binding site 1 out of 2 in 1xv8

Go back to Chlorine Binding Sites List in 1xv8
Chlorine binding site 1 out of 2 in the Crystal Structure of Human Salivary Alpha-Amylase Dimer


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 Human Salivary Alpha-Amylase Dimer within 5.0Å range:
probe atom residue distance (Å) B Occ
A:Cl498

b:16.7
occ:1.00
NH2 A:ARG337 3.2 18.2 1.0
NH1 A:ARG337 3.2 17.5 1.0
ND2 A:ASN298 3.3 18.5 1.0
NE A:ARG195 3.5 13.2 1.0
NH2 A:ARG195 3.6 7.5 1.0
CZ A:ARG337 3.6 17.8 1.0
CZ A:ARG195 4.0 11.4 1.0
CG2 A:THR254 4.1 9.5 1.0
CB A:ASN298 4.1 19.3 1.0
CG A:ASN298 4.2 19.9 1.0
CZ A:PHE256 4.3 12.9 1.0
CG A:GLU233 4.4 23.8 1.0
CD A:ARG195 4.6 13.5 1.0
CZ A:PHE295 4.8 12.1 1.0
CB A:GLU233 4.8 21.9 1.0
ND1 A:HIS299 4.8 22.3 1.0
CE1 A:HIS299 4.9 22.7 1.0
CG A:ARG195 4.9 12.1 1.0
CE1 A:PHE256 4.9 11.8 1.0
CB A:THR254 4.9 12.1 1.0
NE A:ARG337 5.0 17.2 1.0
CE1 A:PHE295 5.0 11.7 1.0

Chlorine binding site 2 out of 2 in 1xv8

Go back to Chlorine Binding Sites List in 1xv8
Chlorine binding site 2 out of 2 in the Crystal Structure of Human Salivary Alpha-Amylase Dimer


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 Human Salivary Alpha-Amylase Dimer within 5.0Å range:
probe atom residue distance (Å) B Occ
B:Cl498

b:16.7
occ:1.00
NH2 B:ARG337 3.2 18.2 1.0
NH1 B:ARG337 3.2 17.5 1.0
ND2 B:ASN298 3.3 18.5 1.0
NE B:ARG195 3.5 13.2 1.0
NH2 B:ARG195 3.6 7.5 1.0
CZ B:ARG337 3.6 17.8 1.0
CZ B:ARG195 4.0 11.4 1.0
CG2 B:THR254 4.1 9.5 1.0
CB B:ASN298 4.1 19.3 1.0
CG B:ASN298 4.2 19.9 1.0
CZ B:PHE256 4.3 12.9 1.0
CG B:GLU233 4.4 23.8 1.0
CD B:ARG195 4.6 13.5 1.0
CZ B:PHE295 4.8 12.1 1.0
CB B:GLU233 4.8 21.9 1.0
ND1 B:HIS299 4.8 22.3 1.0
CE1 B:HIS299 4.9 22.7 1.0
CG B:ARG195 4.9 12.1 1.0
CE1 B:PHE256 4.9 11.8 1.0
CB B:THR254 4.9 12.1 1.0
NE B:ARG337 5.0 17.2 1.0
CE1 B:PHE295 5.0 11.7 1.0

Reference:

S.Z.Fisher, L.Govindasamy, C.K.Tu, D.N.Silverman, H.Rajaniemi, R.Mckenna. Crystal Structure of Human Salivary Alpha-Amylase Dimer To Be Published.
Page generated: Thu Jul 10 20:29:41 2025

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