Calcium in PDB 1bra: Relocating A Negative Charge in the Binding Pocket of Trypsin

All present enzymatic activity of Relocating A Negative Charge in the Binding Pocket of Trypsin:
3.4.21.4;

The structure of Relocating A Negative Charge in the Binding Pocket of Trypsin, PDB code: 1bra was solved by J.J.Perona, M.E.Mcgrath, R.J.Fletterick, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	6.00 / 2.20
Space group	I 2 3
Cell size a, b, c (Å), α, β, γ (°)	124.400, 124.400, 124.400, 90.00, 90.00, 90.00
R / Rfree (%)	n/a / n/a

The binding sites of Calcium atom in the Relocating A Negative Charge in the Binding Pocket of Trypsin (pdb code 1bra). 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 Relocating A Negative Charge in the Binding Pocket of Trypsin, PDB code: 1bra:

Calcium binding site 1 out of 1 in the Relocating A Negative Charge in the Binding Pocket of Trypsin


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of Relocating A Negative Charge in the Binding Pocket of Trypsin within 5.0Å range: probe atom residue distance (Å) B Occ A:Ca302 b:2.0 occ:1.00 O A:VAL75 2.0 13.5 1.0 OE2 A:GLU80 2.0 7.3 1.0 OE1 A:GLU70 2.1 9.9 1.0 O A:HOH261 2.2 9.6 1.0 OE1 A:GLU77 2.3 15.8 1.0 O A:ASN72 2.4 11.0 1.0 C A:VAL75 3.2 11.2 1.0 CD A:GLU80 3.2 4.3 1.0 CD A:GLU70 3.2 2.0 1.0 CD A:GLU77 3.2 20.4 1.0 C A:ASN72 3.5 9.2 1.0 CG A:GLU80 3.6 5.8 1.0 OE2 A:GLU70 3.7 11.3 1.0 CG A:GLU77 3.8 19.2 1.0 N A:LEU76 4.0 12.1 1.0 N A:GLU77 4.0 13.8 1.0 CA A:LEU76 4.0 14.0 1.0 N A:VAL75 4.1 11.2 1.0 OE1 A:GLU80 4.2 6.9 1.0 CA A:VAL75 4.2 10.9 1.0 N A:ASN72 4.3 6.9 1.0 OE2 A:GLU77 4.3 18.8 1.0 CA A:ASN72 4.4 8.6 1.0 N A:ILE73 4.4 9.7 1.0 C A:LEU76 4.4 13.6 1.0 CA A:ILE73 4.5 8.2 1.0 CB A:GLU77 4.5 16.4 1.0 CG A:GLU70 4.5 10.8 1.0 C A:ILE73 4.6 9.5 1.0 N A:HIS71 4.6 7.3 1.0 O A:HOH278 4.6 24.4 1.0 CA A:GLU70 4.7 8.1 1.0 CB A:ASN72 4.7 6.1 1.0 O A:ILE73 4.8 7.5 1.0 O A:HOH298 4.9 23.8 1.0 CB A:GLU70 4.9 2.4 1.0 CA A:GLU77 4.9 15.3 1.0 N A:ASN74 5.0 8.4 1.0

J.J.Perona, C.A.Tsu, M.E.Mcgrath, C.S.Craik, R.J.Fletterick. Relocating A Negative Charge in the Binding Pocket of Trypsin. J.Mol.Biol. V. 230 934 1993.
ISSN: ISSN 0022-2836
PubMed: 8478942
DOI: 10.1006/JMBI.1993.1211