Calcium in PDB 3o77: The Structure of CA2+ Sensor (Case-16)

All present enzymatic activity of The Structure of CA2+ Sensor (Case-16):
2.7.11.18;

The structure of The Structure of CA2+ Sensor (Case-16), PDB code: 3o77 was solved by L.Leder, W.Stark, F.Freuler, M.Marsh, M.Meyerhofer, T.Stettler, L.M.Mayr, O.V.Britanova, L.A.Strukova, D.M.Chudakov, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	70.01 / 2.35
Space group	P 21 21 2
Cell size a, b, c (Å), α, β, γ (°)	92.499, 106.941, 43.265, 90.00, 90.00, 90.00
R / Rfree (%)	19.8 / 27.4

The structure of The Structure of CA2+ Sensor (Case-16) also contains other interesting chemical elements:

Chlorine

(Cl)

1 atom

The binding sites of Calcium atom in the The Structure of CA2+ Sensor (Case-16) (pdb code 3o77). This binding sites where shown within 5.0 Angstroms radius around Calcium atom.
In total 2 binding sites of Calcium where determined in the The Structure of CA2+ Sensor (Case-16), PDB code: 3o77:
Jump to Calcium binding site number: 1; 2;

Calcium binding site 1 out of 2 in the The Structure of CA2+ Sensor (Case-16)


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of The Structure of CA2+ Sensor (Case-16) within 5.0Å range: probe atom residue distance (Å) B Occ A:Ca418 b:51.3 occ:1.00 OD1 A:ASP362 2.0 37.8 1.0 O A:HOH566 2.1 47.9 1.0 O A:TYR368 2.4 37.4 1.0 OE1 A:GLU373 2.4 35.1 1.0 OE2 A:GLU373 2.5 40.1 1.0 OD1 A:ASN366 2.5 42.2 1.0 OD1 A:ASP364 2.6 43.3 1.0 CD A:GLU373 2.8 36.9 1.0 CG A:ASP362 3.2 38.3 1.0 CG A:ASP364 3.4 46.6 1.0 CG A:ASN366 3.5 41.2 1.0 C A:TYR368 3.6 34.3 1.0 OD2 A:ASP364 3.7 47.8 1.0 OD2 A:ASP362 4.0 38.8 1.0 CB A:ASP362 4.1 35.2 1.0 ND2 A:ASN366 4.1 40.4 1.0 CA A:ASP362 4.2 35.6 1.0 N A:TYR368 4.2 36.3 1.0 N A:ASN366 4.3 43.2 1.0 CG A:GLU373 4.3 34.8 1.0 CA A:TYR368 4.4 35.6 1.0 N A:ASP364 4.4 44.6 1.0 C A:ASP362 4.4 38.1 1.0 N A:ILE369 4.6 30.9 1.0 CA A:ILE369 4.6 28.5 1.0 CB A:ASN366 4.6 43.7 1.0 CB A:ASP364 4.6 48.4 1.0 N A:GLY365 4.7 44.1 1.0 N A:LYS363 4.7 40.3 1.0 CB A:TYR368 4.8 37.4 1.0 N A:SER370 4.8 29.8 1.0 O A:ASP362 4.8 39.2 1.0 CA A:ASP364 4.8 47.3 1.0 CA A:ASN366 4.9 43.2 1.0 N A:GLY367 4.9 38.4 1.0 C A:ASP364 4.9 46.5 1.0

Calcium binding site 2 out of 2 in the The Structure of CA2+ Sensor (Case-16)


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 2 of The Structure of CA2+ Sensor (Case-16) within 5.0Å range: probe atom residue distance (Å) B Occ A:Ca419 b:51.7 occ:1.00 OD1 A:ASP400 2.2 41.3 1.0 OD1 A:ASP398 2.2 35.1 1.0 O A:HOH547 2.3 47.0 1.0 O A:GLN404 2.3 35.4 1.0 OD1 A:ASP402 2.4 36.0 1.0 OE2 A:GLU409 2.5 34.3 1.0 OE1 A:GLU409 2.5 29.6 1.0 CD A:GLU409 2.9 27.8 1.0 CG A:ASP400 3.0 43.5 1.0 CG A:ASP402 3.1 40.6 1.0 OD2 A:ASP400 3.2 48.9 1.0 CG A:ASP398 3.4 37.9 1.0 C A:GLN404 3.5 33.5 1.0 OD2 A:ASP402 3.5 41.2 1.0 N A:GLN404 4.1 37.1 1.0 OD2 A:ASP398 4.2 43.0 1.0 N A:ASP402 4.2 42.1 1.0 CB A:ASP398 4.3 34.3 1.0 CA A:ASP398 4.3 34.8 1.0 N A:ASP400 4.3 41.9 1.0 CB A:ASP402 4.3 43.0 1.0 N A:VAL405 4.3 31.2 1.0 CA A:GLN404 4.4 35.5 1.0 CB A:ASP400 4.4 44.8 1.0 CG A:GLU409 4.4 29.9 1.0 CA A:VAL405 4.5 29.3 1.0 N A:ASN406 4.5 31.4 1.0 N A:GLY401 4.5 43.0 1.0 C A:ASP398 4.7 37.2 1.0 N A:ILE399 4.7 37.0 1.0 CA A:ASP400 4.7 44.7 1.0 CA A:ASP402 4.7 43.4 1.0 CG A:GLN404 4.8 41.6 1.0 N A:GLY403 4.8 40.3 1.0 C A:ASP400 4.9 45.1 1.0 ND2 A:ASN406 5.0 34.3 1.0 C A:ASP402 5.0 41.8 1.0 C A:VAL405 5.0 30.2 1.0

L.Leder, W.Stark, F.Freuler, M.Marsh, M.Meyerhofer, T.Stettler, L.M.Mayr, O.V.Britanova, L.A.Strukova, D.M.Chudakov, E.A.Souslova. The Structure of CA2+ Sensor CASE16 Reveals the Mechanism of Reaction to Low CA2+ Concentrations Sensors (Basel) V. 10 8143 2010.
ISSN: ESSN 1424-8220
PubMed: 22163646
DOI: 10.3390/S100908143