Calcium in PDB 1u94: Crystal Structure of E. Coli Reca in A Compressed Helical Filament Form 2

The structure of Crystal Structure of E. Coli Reca in A Compressed Helical Filament Form 2, PDB code: 1u94 was solved by X.Xing, C.E.Bell, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	34.65 / 1.90
Space group	P 61
Cell size a, b, c (Å), α, β, γ (°)	105.854, 105.854, 73.496, 90.00, 90.00, 120.00
R / Rfree (%)	18.7 / 22.2

The binding sites of Calcium atom in the Crystal Structure of E. Coli Reca in A Compressed Helical Filament Form 2 (pdb code 1u94). This binding sites where shown within 5.0 Angstroms radius around Calcium atom.
In total 3 binding sites of Calcium where determined in the Crystal Structure of E. Coli Reca in A Compressed Helical Filament Form 2, PDB code: 1u94:
Jump to Calcium binding site number: 1; 2; 3;

Calcium binding site 1 out of 3 in the Crystal Structure of E. Coli Reca in A Compressed Helical Filament Form 2


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of Crystal Structure of E. Coli Reca in A Compressed Helical Filament Form 2 within 5.0Å range: probe atom residue distance (Å) B Occ A:Ca701 b:25.8 occ:1.00 O A:HOH452 2.3 30.1 1.0 O A:TRP290 2.3 22.2 1.0 OE1 A:GLU285 2.4 46.5 1.0 O A:ALA287 2.4 32.9 1.0 O A:HOH437 2.5 23.9 1.0 OE2 A:GLU285 2.5 25.8 1.0 CD A:GLU285 2.8 33.2 1.0 C A:TRP290 3.4 17.6 1.0 C A:ALA287 3.6 41.2 1.0 N A:ALA287 4.0 30.9 1.0 N A:TRP290 4.0 26.3 1.0 CA A:TRP290 4.1 25.7 1.0 CG A:GLU285 4.3 37.7 1.0 CA A:ALA287 4.4 32.5 1.0 OG A:SER292 4.4 22.3 1.0 CB A:TRP290 4.5 21.4 1.0 C A:LYS286 4.5 28.3 1.0 N A:TYR291 4.5 21.3 1.0 O A:HOH654 4.5 35.1 1.0 N A:GLY288 4.6 40.9 1.0 CA A:GLY288 4.7 34.2 1.0 O A:HOH576 4.7 36.9 1.0 CA A:LYS286 4.8 26.1 1.0 CA A:TYR291 4.8 24.4 1.0 O A:GLU285 4.8 26.4 1.0 CB A:SER292 4.8 18.9 1.0 C A:TYR291 4.8 24.3 1.0 C A:GLY288 4.8 33.7 1.0 CB A:ALA287 4.9 33.8 1.0 N A:LYS286 4.9 23.9 1.0 N A:SER292 4.9 20.2 1.0 C A:GLU285 4.9 26.0 1.0 O A:HOH497 4.9 37.6 1.0 N A:ALA289 5.0 24.8 1.0

Calcium binding site 2 out of 3 in the Crystal Structure of E. Coli Reca in A Compressed Helical Filament Form 2


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 2 of Crystal Structure of E. Coli Reca in A Compressed Helical Filament Form 2 within 5.0Å range: probe atom residue distance (Å) B Occ A:Ca702 b:50.4 occ:1.00 O A:GLY136 2.2 38.0 1.0 O A:HOH530 2.4 50.0 1.0 O A:HOH650 2.4 39.0 1.0 O A:HOH478 2.5 31.8 1.0 O A:HOH455 2.8 30.4 1.0 C A:GLY136 3.2 39.7 1.0 CA A:GLY136 3.9 37.4 1.0 N A:ALA137 4.3 35.7 1.0 O A:SER185 4.3 22.0 1.0 CA A:ALA137 4.5 36.8 1.0 O A:HOH443 4.6 24.1 1.0 OD1 A:ASP139 4.8 28.2 1.0 C A:ALA137 5.0 30.6 1.0

Calcium binding site 3 out of 3 in the Crystal Structure of E. Coli Reca in A Compressed Helical Filament Form 2


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 3 of Crystal Structure of E. Coli Reca in A Compressed Helical Filament Form 2 within 5.0Å range: probe atom residue distance (Å) B Occ A:Ca703 b:57.5 occ:1.00 O A:HOH635 2.3 36.7 1.0 O A:HOH636 2.5 50.1 1.0 O A:HOH634 2.5 37.5 1.0 O A:HOH640 2.7 42.2 1.0 O A:HOH632 2.9 33.2 1.0 O A:HOH601 4.0 60.9 1.0 OE1 A:GLU241 4.5 36.7 1.0 OD2 A:ASP276 4.7 52.2 1.0 OE2 A:GLU241 4.8 38.9 1.0 O A:HOH477 4.8 31.4 1.0 O A:HOH616 4.8 52.2 1.0 CD A:GLU241 5.0 37.0 1.0 NE2 A:GLN261 5.0 26.9 1.0

X.Xing, C.E.Bell. Crystal Structures of Escherichia Coli Reca in A Compressed Helical Filament. J.Mol.Biol. V. 342 1471 2004.
ISSN: ISSN 0022-2836
PubMed: 15364575
DOI: 10.1016/J.JMB.2004.07.091