Calcium in PDB 8iwr: HSPCA1 in the CAE1-Atp State

All present enzymatic activity of HSPCA1 in the CAE1-Atp State:
7.2.2.10;

The structure of HSPCA1 in the CAE1-Atp State also contains other interesting chemical elements:

Magnesium

(Mg)

1 atom

The binding sites of Calcium atom in the HSPCA1 in the CAE1-Atp State (pdb code 8iwr). This binding sites where shown within 5.0 Angstroms radius around Calcium atom.
In total only one binding site of Calcium was determined in the HSPCA1 in the CAE1-Atp State, PDB code: 8iwr:

Calcium binding site 1 out of 1 in the HSPCA1 in the CAE1-Atp State


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of HSPCA1 in the CAE1-Atp State within 5.0Å range: probe atom residue distance (Å) B Occ A:Ca1001 b:30.8 occ:1.00 OE1 A:GLU308 2.4 39.9 1.0 OD1 A:ASN738 2.5 33.0 1.0 O A:ALA304 2.6 35.7 1.0 O A:ILE306 2.6 37.9 1.0 O A:VAL303 2.7 41.7 1.0 OD2 A:ASP742 2.8 33.6 1.0 C A:ALA304 3.2 35.7 1.0 CD A:GLU308 3.4 39.9 1.0 CA A:ALA304 3.5 35.7 1.0 CG A:ASP742 3.6 33.6 1.0 OD1 A:ASP742 3.7 33.6 1.0 CG A:ASN738 3.7 33.0 1.0 C A:ILE306 3.7 37.9 1.0 C A:VAL303 3.8 41.7 1.0 OE2 A:GLU308 3.8 39.9 1.0 N A:ILE306 4.0 37.9 1.0 N A:ALA304 4.1 35.7 1.0 N A:ALA305 4.3 36.0 1.0 CA A:ILE306 4.3 37.9 1.0 ND2 A:ASN738 4.5 33.0 1.0 C A:ALA305 4.5 36.0 1.0 CB A:ILE306 4.7 37.9 1.0 SD A:MET741 4.7 32.6 1.0 CB A:ASN738 4.7 33.0 1.0 CG A:GLU308 4.7 39.9 1.0 NE2 A:GLN706 4.7 30.5 1.0 N A:PRO307 4.8 38.9 1.0 N A:GLU308 4.8 39.9 1.0 CB A:ALA304 4.8 35.7 1.0 CA A:ALA305 4.9 36.0 1.0 CG A:MET741 4.9 32.6 1.0 CA A:PRO307 5.0 38.9 1.0

M.Wu, C.Wu, T.Song, K.Pan, Y.Wang, Z.Liu. Structure and Transport Mechanism of the Human Calcium Pump SPCA1. Cell Res. V. 33 533 2023.
ISSN: ISSN 1001-0602
PubMed: 37258749
DOI: 10.1038/S41422-023-00827-X