Calcium in PDB 1sbi: Subtilisin Bpn' 8397 (E.C. 3.4.21.14) Mutant (M50F, N76D, G169A, Q206C, N218S)

All present enzymatic activity of Subtilisin Bpn' 8397 (E.C. 3.4.21.14) Mutant (M50F, N76D, G169A, Q206C, N218S):
3.4.21.62;

The structure of Subtilisin Bpn' 8397 (E.C. 3.4.21.14) Mutant (M50F, N76D, G169A, Q206C, N218S), PDB code: 1sbi was solved by R.D.Kidd, H.P.Yennawar, G.K.Farber, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	17.00 / 2.20
Space group	P 1 21 1
Cell size a, b, c (Å), α, β, γ (°)	41.510, 79.340, 37.240, 90.00, 114.32, 90.00
R / Rfree (%)	16.4 / 16.3

The binding sites of Calcium atom in the Subtilisin Bpn' 8397 (E.C. 3.4.21.14) Mutant (M50F, N76D, G169A, Q206C, N218S) (pdb code 1sbi). This binding sites where shown within 5.0 Angstroms radius around Calcium atom.
In total only one binding site of Calcium was determined in the Subtilisin Bpn' 8397 (E.C. 3.4.21.14) Mutant (M50F, N76D, G169A, Q206C, N218S), PDB code: 1sbi:

Calcium binding site 1 out of 1 in the Subtilisin Bpn' 8397 (E.C. 3.4.21.14) Mutant (M50F, N76D, G169A, Q206C, N218S)


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of Subtilisin Bpn' 8397 (E.C. 3.4.21.14) Mutant (M50F, N76D, G169A, Q206C, N218S) within 5.0Å range: probe atom residue distance (Å) B Occ A:Ca290 b:14.5 occ:1.00 O A:VAL81 2.3 19.1 1.0 O A:ILE79 2.4 19.6 1.0 O A:LEU75 2.4 12.8 1.0 OD1 A:ASN77 2.5 21.8 1.0 OD1 A:ASP41 2.5 17.1 1.0 OE1 A:GLN2 2.6 17.7 1.0 OD2 A:ASP41 2.7 16.3 1.0 CG A:ASP41 3.0 13.9 1.0 C A:VAL81 3.5 16.6 1.0 CG A:ASN77 3.6 15.8 1.0 C A:ILE79 3.6 16.0 1.0 CD A:GLN2 3.7 16.3 1.0 C A:LEU75 3.7 14.6 1.0 N A:VAL81 3.7 16.7 1.0 C A:GLY80 4.0 13.0 1.0 CG A:GLN2 4.0 20.1 1.0 N A:ASN77 4.1 18.2 1.0 ND2 A:ASN77 4.2 14.9 1.0 CA A:VAL81 4.2 15.3 1.0 CA A:GLY80 4.3 9.9 1.0 N A:GLY80 4.4 13.4 1.0 CB A:ASP41 4.4 13.3 1.0 O A:GLY80 4.5 14.7 1.0 N A:ILE79 4.5 12.9 1.0 CA A:LEU75 4.5 14.3 1.0 N A:LEU75 4.6 15.1 1.0 N A:LEU82 4.6 16.9 1.0 CG1 A:ILE79 4.6 16.7 1.0 CB A:GLN2 4.6 16.3 1.0 N A:ASP76 4.6 17.7 1.0 CA A:ILE79 4.6 14.9 1.0 CA A:ASP76 4.7 19.4 1.0 CB A:ASN77 4.7 12.0 1.0 CA A:ASN77 4.8 12.5 1.0 C A:ASN77 4.8 15.7 1.0 C A:ASP76 4.8 18.6 1.0 NE2 A:GLN2 4.8 11.9 1.0 O A:ASN77 4.9 13.4 1.0 CA A:LEU82 4.9 13.1 1.0 C A:ALA74 4.9 13.7 1.0 CB A:LEU75 5.0 9.1 1.0

R.D.Kidd, H.P.Yennawar, P.Sears, C.H.Wong, G.K.Farber. A Weak Calcium Binding Site in Subtilisin Bpn' Has A Dramatic Effect on Protein Stability. J.Am.Chem.Soc. V. 118 1645 1996.
ISSN: ISSN 0002-7863