Magnesium in PDB 3ar3: Calcium Pump Crystal Structure with Bound Adp and Tg

All present enzymatic activity of Calcium Pump Crystal Structure with Bound Adp and Tg:
3.6.3.8;

The structure of Calcium Pump Crystal Structure with Bound Adp and Tg, PDB code: 3ar3 was solved by C.Toyoshima, S.Yonekura, J.Tsueda, S.Iwasawa, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	14.96 / 2.30
Space group	P 41 21 2
Cell size a, b, c (Å), α, β, γ (°)	71.309, 71.309, 590.026, 90.00, 90.00, 90.00
R / Rfree (%)	23.9 / 28.3

The structure of Calcium Pump Crystal Structure with Bound Adp and Tg also contains other interesting chemical elements:

Sodium

(Na)

1 atom

The binding sites of Magnesium atom in the Calcium Pump Crystal Structure with Bound Adp and Tg (pdb code 3ar3). This binding sites where shown within 5.0 Angstroms radius around Magnesium atom.
In total 2 binding sites of Magnesium where determined in the Calcium Pump Crystal Structure with Bound Adp and Tg, PDB code: 3ar3:
Jump to Magnesium binding site number: 1; 2;

Magnesium binding site 1 out of 2 in the Calcium Pump Crystal Structure with Bound Adp and Tg


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 1 of Calcium Pump Crystal Structure with Bound Adp and Tg within 5.0Å range: probe atom residue distance (Å) B Occ A:Mg997 b:90.0 occ:1.00 O1B A:ADP1002 2.1 93.6 1.0 O1A A:ADP1002 2.6 92.0 1.0 PB A:ADP1002 3.1 94.1 1.0 O3B A:ADP1002 3.2 94.3 1.0 OE2 A:GLU439 3.5 86.6 1.0 O3A A:ADP1002 3.7 93.4 1.0 PA A:ADP1002 3.7 91.9 1.0 NH2 A:ARG560 4.3 59.3 1.0 O2B A:ADP1002 4.5 96.5 1.0 O2A A:ADP1002 4.7 92.2 1.0 CD A:GLU439 4.7 85.7 1.0 O5' A:ADP1002 4.8 90.2 1.0 O A:HOH2641 4.9 69.3 1.0

Magnesium binding site 2 out of 2 in the Calcium Pump Crystal Structure with Bound Adp and Tg


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 2 of Calcium Pump Crystal Structure with Bound Adp and Tg within 5.0Å range: probe atom residue distance (Å) B Occ A:Mg1001 b:78.7 occ:1.00 OD1 A:ASP703 2.1 65.5 1.0 CG A:ASP703 3.0 64.2 1.0 O A:HOH2302 3.1 52.9 1.0 OD2 A:ASP703 3.3 67.1 1.0 OD2 A:ASP707 3.3 58.3 1.0 N A:GLY704 4.0 54.3 1.0 CA A:GLY182 4.1 79.6 1.0 CB A:ASP703 4.4 61.9 1.0 N A:ASP703 4.4 56.2 1.0 CG A:ASP707 4.4 54.7 1.0 ND2 A:ASN706 4.6 53.1 1.0 CA A:ASP703 4.7 59.4 1.0 CA A:GLY704 4.7 52.2 1.0 C A:ASP703 4.7 58.0 1.0 OD1 A:ASN706 4.7 55.5 1.0 N A:GLY182 4.8 75.5 1.0 O A:HOH2301 4.8 58.2 1.0 OD1 A:ASP707 4.9 49.6 1.0

C.Toyoshima, S.Yonekura, J.Tsueda, S.Iwasawa. Trinitrophenyl Derivatives Bind Differently From Parent Adenine Nucleotides to CA2+-Atpase in the Absence of CA2+ Proc.Natl.Acad.Sci.Usa V. 108 1833 2011.
ISSN: ISSN 0027-8424
PubMed: 21239683
DOI: 10.1073/PNAS.1017659108