Cobalt in PDB 1rrk: Crystal Structure Analysis of the Bb Segment of Factor B

All present enzymatic activity of Crystal Structure Analysis of the Bb Segment of Factor B:
3.4.21.47;

The structure of Crystal Structure Analysis of the Bb Segment of Factor B, PDB code: 1rrk was solved by K.Ponnuraj, Y.Xu, K.Macon, D.Moore, J.E.Volanakis, S.V.Narayana, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	19.67 / 2.00
Space group	P 61
Cell size a, b, c (Å), α, β, γ (°)	98.980, 98.980, 126.428, 90.00, 90.00, 120.00
R / Rfree (%)	22 / 24.5

The structure of Crystal Structure Analysis of the Bb Segment of Factor B also contains other interesting chemical elements:

Iodine	(I)	2 atoms
Sodium	(Na)	7 atoms

The binding sites of Cobalt atom in the Crystal Structure Analysis of the Bb Segment of Factor B (pdb code 1rrk). This binding sites where shown within 5.0 Angstroms radius around Cobalt atom.
In total only one binding site of Cobalt was determined in the Crystal Structure Analysis of the Bb Segment of Factor B, PDB code: 1rrk:

Cobalt binding site 1 out of 1 in the Crystal Structure Analysis of the Bb Segment of Factor B


Mono view


Stereo pair view

A full contact list of Cobalt with other atoms in the Co binding site number 1 of Crystal Structure Analysis of the Bb Segment of Factor B within 5.0Å range: probe atom residue distance (Å) B Occ A:Co749 b:38.7 occ:1.00 O A:HOH1007 2.3 37.3 1.0 OG A:SER253 2.3 29.8 1.0 O A:HOH1008 2.4 28.7 1.0 O A:HOH1009 2.4 35.0 1.0 OG A:SER255 2.4 27.8 1.0 OG1 A:THR328 2.4 27.9 1.0 CB A:SER253 3.2 27.7 1.0 CB A:SER255 3.6 31.2 1.0 CB A:THR328 3.6 29.2 1.0 CG2 A:THR328 3.9 28.7 1.0 N A:SER255 4.0 30.5 1.0 O A:LEU366 4.2 36.4 1.0 OD1 A:ASP364 4.3 31.2 1.0 CA A:SER255 4.4 31.1 1.0 OD1 A:ASP251 4.4 27.4 1.0 OD2 A:ASP364 4.4 28.7 1.0 OD2 A:ASP251 4.5 27.4 1.0 CA A:SER253 4.5 28.6 1.0 C A:SER253 4.7 31.0 1.0 N A:ASP254 4.7 31.8 1.0 ND2 A:ASN368 4.7 44.6 1.0 CG A:ASP364 4.8 29.1 1.0 CB A:LEU366 4.8 32.1 1.0 CA A:THR328 4.9 29.4 1.0 CG A:ASP251 4.9 29.6 1.0

K.Ponnuraj, Y.Xu, K.Macon, D.Moore, J.E.Volanakis, S.V.Narayana. Structural Analysis of Engineered Bb Fragment of Complement Factor B: Insights Into the Activation Mechanism of the Alternative Pathway C3-Convertase. Mol.Cell V. 14 17 2004.
ISSN: ISSN 1097-2765
PubMed: 15068800
DOI: 10.1016/S1097-2765(04)00160-1