Iodine in PDB 1alw: Inhibitor and Calcium Bound Domain VI of Porcine Calpain

The structure of Inhibitor and Calcium Bound Domain VI of Porcine Calpain, PDB code: 1alw was solved by S.V.L.Narayana, G.Lin, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	8.00 / 2.03
Space group	P 1 21 1
Cell size a, b, c (Å), α, β, γ (°)	49.870, 80.460, 57.080, 90.00, 91.20, 90.00
R / Rfree (%)	21 / 27

The structure of Inhibitor and Calcium Bound Domain VI of Porcine Calpain also contains other interesting chemical elements:

Calcium

(Ca)

8 atoms

The binding sites of Iodine atom in the Inhibitor and Calcium Bound Domain VI of Porcine Calpain (pdb code 1alw). This binding sites where shown within 5.0 Angstroms radius around Iodine atom.
In total 2 binding sites of Iodine where determined in the Inhibitor and Calcium Bound Domain VI of Porcine Calpain, PDB code: 1alw:
Jump to Iodine binding site number: 1; 2;

Iodine binding site 1 out of 2 in the Inhibitor and Calcium Bound Domain VI of Porcine Calpain


Mono view


Stereo pair view

A full contact list of Iodine with other atoms in the I binding site number 1 of Inhibitor and Calcium Bound Domain VI of Porcine Calpain within 5.0Å range: probe atom residue distance (Å) B Occ A:I11 b:44.6 occ:1.00 I A:ISA11 0.0 44.6 1.0 CZ A:ISA11 2.0 43.5 1.0 CE1 A:ISA11 2.9 43.2 1.0 CE2 A:ISA11 2.9 42.9 1.0 CE2 A:PHE224 3.8 10.5 1.0 CD1 A:ISA11 4.1 43.4 1.0 CD2 A:ISA11 4.2 43.0 1.0 CG2 A:ILE169 4.2 17.3 1.0 CZ A:PHE224 4.4 10.6 1.0 O A:LEU122 4.4 19.8 1.0 N A:VAL126 4.4 28.0 1.0 CD1 A:LEU122 4.4 19.8 1.0 CB A:VAL126 4.4 28.3 1.0 CB A:VAL125 4.5 26.4 1.0 CG A:LEU122 4.5 19.4 1.0 CG1 A:VAL125 4.5 25.9 1.0 CA A:VAL126 4.6 29.1 1.0 CG2 A:VAL126 4.7 28.6 1.0 CG A:ISA11 4.7 44.0 1.0 CD2 A:PHE224 4.8 11.6 1.0 CE2 A:PHE137 4.8 16.5 1.0 CA A:LEU122 4.9 20.4 1.0

Iodine binding site 2 out of 2 in the Inhibitor and Calcium Bound Domain VI of Porcine Calpain


Mono view


Stereo pair view

A full contact list of Iodine with other atoms in the I binding site number 2 of Inhibitor and Calcium Bound Domain VI of Porcine Calpain within 5.0Å range: probe atom residue distance (Å) B Occ B:I12 b:32.6 occ:1.00 I B:ISA12 0.0 32.6 1.0 CZ B:ISA12 2.0 32.5 1.0 CE2 B:ISA12 2.9 32.2 1.0 CE1 B:ISA12 2.9 32.2 1.0 CE2 B:PHE224 3.7 9.0 1.0 CG1 B:VAL126 3.8 18.4 1.0 CZ B:PHE224 4.1 9.2 1.0 CG1 B:VAL125 4.1 14.3 1.0 CD2 B:ISA12 4.2 34.2 1.0 CD1 B:ISA12 4.2 33.6 1.0 CB B:VAL125 4.3 14.2 1.0 CG2 B:ILE169 4.4 12.8 1.0 O B:LEU122 4.4 11.6 1.0 CD1 B:LEU122 4.4 11.1 1.0 N B:VAL126 4.5 15.1 1.0 CG B:ISA12 4.8 34.7 1.0 CG B:LEU122 4.8 10.4 1.0 CD2 B:PHE224 4.9 9.8 1.0 CA B:VAL126 4.9 17.2 1.0 CB B:VAL126 5.0 17.4 1.0

G.D.Lin, D.Chattopadhyay, M.Maki, K.K.Wang, M.Carson, L.Jin, P.W.Yuen, E.Takano, M.Hatanaka, L.J.Delucas, S.V.Narayana. Crystal Structure of Calcium Bound Domain VI of Calpain at 1.9 A Resolution and Its Role in Enzyme Assembly, Regulation, and Inhibitor Binding. Nat.Struct.Biol. V. 4 539 1997.
ISSN: ISSN 1072-8368
PubMed: 9228946
DOI: 10.1038/NSB0797-539