Calcium in PDB 1mbq: Anionic Trypsin From Pacific Chum Salmon

All present enzymatic activity of Anionic Trypsin From Pacific Chum Salmon:
3.4.21.4;

The structure of Anionic Trypsin From Pacific Chum Salmon, PDB code: 1mbq was solved by E.Toyota, K.K.S.Ng, S.Kuninaga, H.Sekizaki, K.Itoh, K.Tanizawa, M.N.G.James, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	20.00 / 1.80
Space group	P 21 21 21
Cell size a, b, c (Å), α, β, γ (°)	44.930, 48.010, 82.960, 90.00, 90.00, 90.00
R / Rfree (%)	16.6 / 19.5

The binding sites of Calcium atom in the Anionic Trypsin From Pacific Chum Salmon (pdb code 1mbq). 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 Anionic Trypsin From Pacific Chum Salmon, PDB code: 1mbq:

Calcium binding site 1 out of 1 in the Anionic Trypsin From Pacific Chum Salmon


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of Anionic Trypsin From Pacific Chum Salmon within 5.0Å range: probe atom residue distance (Å) B Occ A:Ca1 b:12.3 occ:1.00 OE1 A:GLU70 2.2 11.2 1.0 OE2 A:GLU80 2.2 10.7 1.0 O A:VAL75 2.2 12.2 1.0 O A:HOH1248 2.3 12.4 1.0 OE1 A:GLU77 2.3 12.6 1.0 O A:ASN72 2.4 11.1 1.0 CD A:GLU70 3.2 11.7 1.0 CD A:GLU80 3.3 12.1 1.0 CD A:GLU77 3.4 14.4 1.0 C A:VAL75 3.4 15.6 1.0 C A:ASN72 3.5 10.2 1.0 OE2 A:GLU70 3.6 12.7 1.0 CG A:GLU80 3.7 12.0 1.0 CG A:GLU77 3.9 14.2 1.0 N A:GLU77 4.0 12.6 1.0 CA A:THR76 4.2 15.3 1.0 N A:VAL75 4.2 16.2 1.0 N A:THR76 4.2 14.6 1.0 CA A:ILE73 4.3 11.4 1.0 N A:ASN72 4.3 10.6 1.0 N A:ILE73 4.3 10.9 1.0 OE2 A:GLU77 4.3 18.4 1.0 CA A:VAL75 4.4 15.9 1.0 CB A:GLU77 4.4 11.2 1.0 OE1 A:GLU80 4.4 11.6 1.0 CA A:ASN72 4.4 10.7 1.0 C A:THR76 4.5 14.3 1.0 CG A:GLU70 4.5 11.9 1.0 C A:ILE73 4.5 12.2 1.0 N A:HIS71 4.6 10.6 1.0 CB A:ASN72 4.7 10.9 1.0 CA A:GLU70 4.8 10.1 1.0 CB A:GLU70 4.8 11.1 1.0 N A:LYS74 4.8 13.5 1.0 CA A:GLU77 4.9 12.3 1.0 O A:ILE73 5.0 12.2 1.0

E.Toyota, K.K.S.Ng, S.Kuninaga, H.Sekizaki, K.Itoh, K.Tanizawa, M.N.G.James. Crystal Structure and Nucleotide Sequence of An Anionic Trypsin From Chum Salmon (Oncorhynchus Keta) in Comparison with Atlantic Salmon (Salmo Salar) and Bovine Trypsin J.Mol.Biol. V. 324 391 2002.
ISSN: ISSN 0022-2836
PubMed: 12445776
DOI: 10.1016/S0022-2836(02)01097-5