Calcium in PDB 1a2q: Subtilisin Bpn' Mutant 7186

All present enzymatic activity of Subtilisin Bpn' Mutant 7186:
3.4.21.62;

The structure of Subtilisin Bpn' Mutant 7186, PDB code: 1a2q was solved by G.L.Gilliland, M.Whitlow, A.J.Howard, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	10.00 / 1.80
Space group	P 1 21 1
Cell size a, b, c (Å), α, β, γ (°)	41.640, 79.450, 37.260, 90.00, 114.53, 90.00
R / Rfree (%)	n/a / n/a

The binding sites of Calcium atom in the Subtilisin Bpn' Mutant 7186 (pdb code 1a2q). This binding sites where shown within 5.0 Angstroms radius around Calcium atom.
In total 2 binding sites of Calcium where determined in the Subtilisin Bpn' Mutant 7186, PDB code: 1a2q:
Jump to Calcium binding site number: 1; 2;

Calcium binding site 1 out of 2 in the Subtilisin Bpn' Mutant 7186


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of Subtilisin Bpn' Mutant 7186 within 5.0Å range: probe atom residue distance (Å) B Occ A:Ca295 b:7.5 occ:1.00 O A:ILE79 2.3 9.2 1.0 O A:LEU75 2.3 8.2 1.0 OD1 A:ASP41 2.3 9.6 1.0 OD1 A:ASN77 2.4 10.7 1.0 OD2 A:ASP41 2.4 7.7 1.0 O A:VAL81 2.4 9.1 1.0 OE1 A:GLN2 2.4 11.9 1.0 CG A:ASP41 2.7 8.8 1.0 CG A:ASN77 3.4 11.9 1.0 CD A:GLN2 3.4 11.6 1.0 C A:ILE79 3.5 10.1 1.0 C A:LEU75 3.5 8.6 1.0 C A:VAL81 3.5 8.5 1.0 N A:VAL81 3.7 9.3 1.0 CG A:GLN2 3.8 12.7 1.0 ND2 A:ASN77 3.9 11.2 1.0 N A:ASN77 4.1 13.1 1.0 C A:GLY80 4.2 9.0 1.0 CB A:ASP41 4.2 8.4 1.0 CA A:VAL81 4.2 8.4 1.0 N A:GLY80 4.3 9.7 1.0 N A:LEU75 4.3 7.7 1.0 CA A:LEU75 4.4 8.2 1.0 CA A:GLY80 4.4 9.2 1.0 CG1 A:ILE79 4.4 10.6 1.0 N A:ILE79 4.5 11.4 1.0 N A:ASN76 4.5 9.7 1.0 CA A:ILE79 4.5 10.7 1.0 CA A:ASN76 4.6 11.5 1.0 NE2 A:GLN2 4.6 13.1 1.0 CB A:ASN77 4.6 12.4 1.0 N A:LEU82 4.6 8.5 1.0 CB A:GLN2 4.6 15.0 1.0 C A:ALA74 4.7 7.5 1.0 O A:ASN77 4.7 12.8 1.0 C A:ASN76 4.7 12.8 1.0 CA A:ASN77 4.8 12.6 1.0 CB A:LEU75 4.8 7.9 1.0 C A:ASN77 4.8 13.1 1.0 CA A:LEU82 4.8 7.7 1.0 O A:GLY80 4.9 8.6 1.0 CB A:ALA74 5.0 6.7 1.0

Calcium binding site 2 out of 2 in the Subtilisin Bpn' Mutant 7186


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 2 of Subtilisin Bpn' Mutant 7186 within 5.0Å range: probe atom residue distance (Å) B Occ A:Ca296 b:12.0 occ:0.60 O A:ALA169 2.2 9.0 1.0 O A:TYR171 2.2 9.5 1.0 O A:HOH340 2.3 13.6 1.0 O A:VAL174 2.3 7.7 1.0 O A:HOH372 2.7 14.6 0.8 C A:TYR171 3.2 9.5 1.0 C A:ALA169 3.4 9.6 1.0 C A:VAL174 3.5 7.2 1.0 C A:LYS170 3.8 11.2 1.0 N A:TYR171 3.9 10.4 1.0 OD2 A:ASP197 3.9 10.2 1.0 N A:PRO172 4.0 8.9 1.0 CA A:VAL174 4.0 7.6 1.0 N A:VAL174 4.0 7.1 1.0 CB A:VAL174 4.0 7.8 1.0 CB A:ALA176 4.0 7.0 1.0 CA A:PRO172 4.1 8.6 1.0 O A:LYS170 4.1 11.9 1.0 O A:GLU195 4.1 11.9 1.0 CA A:TYR171 4.1 9.9 1.0 C A:PRO172 4.2 7.9 1.0 N A:LYS170 4.2 10.1 1.0 O A:PRO172 4.2 8.2 1.0 N A:ALA176 4.3 6.4 1.0 CA A:LYS170 4.3 10.8 1.0 CA A:ALA169 4.4 8.9 1.0 N A:ILE175 4.5 6.4 1.0 NH2 A:ARG247 4.6 10.7 1.0 C A:ILE175 4.7 6.6 1.0 CG1 A:VAL174 4.8 8.5 1.0 CA A:ILE175 4.8 6.5 1.0 CB A:GLU195 4.8 11.0 1.0 O A:PRO168 4.8 8.0 1.0 CA A:ALA176 4.8 6.7 1.0 N A:SER173 4.9 8.2 1.0 CG A:ASP197 5.0 11.1 1.0

M.W.Pantoliano, M.Whitlow, J.F.Wood, S.W.Dodd, K.D.Hardman, M.L.Rollence, P.N.Bryan. Large Increases in General Stability For Subtilisin Bpn' Through Incremental Changes in the Free Energy of Unfolding. Biochemistry V. 28 7205 1989.
ISSN: ISSN 0006-2960
PubMed: 2684274
DOI: 10.1021/BI00444A012