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Calcium in PDB 9vei: Structure of Human KCNQ1-KCNE1-Cam Complex with PIP2

Calcium Binding Sites:

The binding sites of Calcium atom in the Structure of Human KCNQ1-KCNE1-Cam Complex with PIP2 (pdb code 9vei). This binding sites where shown within 5.0 Angstroms radius around Calcium atom.
In total 8 binding sites of Calcium where determined in the Structure of Human KCNQ1-KCNE1-Cam Complex with PIP2, PDB code: 9vei:
Jump to Calcium binding site number: 1; 2; 3; 4; 5; 6; 7; 8;

Calcium binding site 1 out of 8 in 9vei

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Calcium binding site 1 out of 8 in the Structure of Human KCNQ1-KCNE1-Cam Complex with PIP2


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of Structure of Human KCNQ1-KCNE1-Cam Complex with PIP2 within 5.0Å range:
probe atom residue distance (Å) B Occ
B:Ca201

b:103.2
occ:1.00
 O B:ASP21 2.4 123.7 1.0
CB B:ASP21 2.7 123.7 1.0
CB B:ASP23 2.7 123.3 1.0
C B:ASP21 2.9 123.7 1.0
N B:ASP23 3.0 123.3 1.0
CA B:ASP23 3.2 123.3 1.0
CA B:ASP21 3.3 123.7 1.0
O B:ASP23 3.5 123.3 1.0
C B:ASP23 3.6 123.3 1.0
C B:LYS22 3.8 119.6 1.0
N B:LYS22 3.9 119.6 1.0
N B:ASP21 4.0 123.7 1.0
CA B:LYS22 4.4 119.6 1.0
N B:GLY24 4.6 126.0 1.0
O B:LYS22 4.6 119.6 1.0
CB B:ASP25 4.6 124.2 1.0
N B:ASP25 4.7 124.2 1.0
CB B:THR27 4.8 110.1 1.0
O B:ASP25 4.9 124.2 1.0

Calcium binding site 2 out of 8 in 9vei

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Calcium binding site 2 out of 8 in the Structure of Human KCNQ1-KCNE1-Cam Complex with PIP2


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 2 of Structure of Human KCNQ1-KCNE1-Cam Complex with PIP2 within 5.0Å range:
probe atom residue distance (Å) B Occ
B:Ca202

b:115.0
occ:1.00
 O B:GLY60 2.3 104.1 1.0
CB B:ASP59 2.7 108.6 1.0
CG2 B:ILE64 2.8 117.3 1.0
C B:ASP59 3.0 108.6 1.0
O B:ASP59 3.2 108.6 1.0
N B:GLY60 3.3 104.1 1.0
C B:GLY60 3.4 104.1 1.0
CA B:ASP59 3.4 108.6 1.0
O B:GLY62 3.8 103.5 1.0
CA B:GLY60 3.9 104.1 1.0
CB B:ILE64 4.0 117.3 1.0
N B:ASP59 4.3 108.6 1.0
CA B:ILE64 4.4 117.3 1.0
N B:ASN61 4.6 103.2 1.0
N B:GLY62 4.7 103.5 1.0
C B:GLY62 4.8 103.5 1.0
N B:ILE64 4.8 117.3 1.0
CB B:ASN61 4.9 103.2 1.0

Calcium binding site 3 out of 8 in 9vei

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Calcium binding site 3 out of 8 in the Structure of Human KCNQ1-KCNE1-Cam Complex with PIP2


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 3 of Structure of Human KCNQ1-KCNE1-Cam Complex with PIP2 within 5.0Å range:
probe atom residue distance (Å) B Occ
E:Ca201

b:103.2
occ:1.00
 O E:ASP21 2.4 123.7 1.0
CB E:ASP21 2.7 123.7 1.0
CB E:ASP23 2.7 123.3 1.0
C E:ASP21 2.9 123.7 1.0
N E:ASP23 3.0 123.3 1.0
CA E:ASP23 3.2 123.3 1.0
CA E:ASP21 3.3 123.7 1.0
O E:ASP23 3.5 123.3 1.0
C E:ASP23 3.6 123.3 1.0
C E:LYS22 3.8 119.6 1.0
N E:LYS22 3.9 119.6 1.0
N E:ASP21 4.0 123.7 1.0
CA E:LYS22 4.4 119.6 1.0
N E:GLY24 4.6 126.0 1.0
O E:LYS22 4.6 119.6 1.0
CB E:ASP25 4.6 124.2 1.0
N E:ASP25 4.7 124.2 1.0
CB E:THR27 4.8 110.1 1.0
O E:ASP25 4.9 124.2 1.0

Calcium binding site 4 out of 8 in 9vei

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Calcium binding site 4 out of 8 in the Structure of Human KCNQ1-KCNE1-Cam Complex with PIP2


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 4 of Structure of Human KCNQ1-KCNE1-Cam Complex with PIP2 within 5.0Å range:
probe atom residue distance (Å) B Occ
E:Ca202

b:115.0
occ:1.00
 O E:GLY60 2.3 104.1 1.0
CB E:ASP59 2.7 108.6 1.0
CG2 E:ILE64 2.8 117.3 1.0
C E:ASP59 3.0 108.6 1.0
O E:ASP59 3.2 108.6 1.0
N E:GLY60 3.3 104.1 1.0
C E:GLY60 3.4 104.1 1.0
CA E:ASP59 3.4 108.6 1.0
O E:GLY62 3.8 103.5 1.0
CA E:GLY60 3.9 104.1 1.0
CB E:ILE64 4.0 117.3 1.0
N E:ASP59 4.3 108.6 1.0
CA E:ILE64 4.4 117.3 1.0
N E:ASN61 4.6 103.2 1.0
N E:GLY62 4.7 103.5 1.0
C E:GLY62 4.8 103.5 1.0
N E:ILE64 4.8 117.3 1.0
CB E:ASN61 4.9 103.2 1.0

Calcium binding site 5 out of 8 in 9vei

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Calcium binding site 5 out of 8 in the Structure of Human KCNQ1-KCNE1-Cam Complex with PIP2


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 5 of Structure of Human KCNQ1-KCNE1-Cam Complex with PIP2 within 5.0Å range:
probe atom residue distance (Å) B Occ
H:Ca201

b:103.2
occ:1.00
 O H:ASP21 2.4 123.7 1.0
CB H:ASP21 2.7 123.7 1.0
CB H:ASP23 2.7 123.3 1.0
C H:ASP21 2.9 123.7 1.0
N H:ASP23 3.0 123.3 1.0
CA H:ASP23 3.2 123.3 1.0
CA H:ASP21 3.3 123.7 1.0
O H:ASP23 3.5 123.3 1.0
C H:ASP23 3.6 123.3 1.0
C H:LYS22 3.8 119.6 1.0
N H:LYS22 3.9 119.6 1.0
N H:ASP21 4.0 123.7 1.0
CA H:LYS22 4.4 119.6 1.0
N H:GLY24 4.6 126.0 1.0
O H:LYS22 4.6 119.6 1.0
CB H:ASP25 4.6 124.2 1.0
N H:ASP25 4.7 124.2 1.0
CB H:THR27 4.8 110.1 1.0
O H:ASP25 4.9 124.2 1.0

Calcium binding site 6 out of 8 in 9vei

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Calcium binding site 6 out of 8 in the Structure of Human KCNQ1-KCNE1-Cam Complex with PIP2


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 6 of Structure of Human KCNQ1-KCNE1-Cam Complex with PIP2 within 5.0Å range:
probe atom residue distance (Å) B Occ
H:Ca202

b:115.0
occ:1.00
 O H:GLY60 2.3 104.1 1.0
CB H:ASP59 2.7 108.6 1.0
CG2 H:ILE64 2.8 117.3 1.0
C H:ASP59 3.0 108.6 1.0
O H:ASP59 3.2 108.6 1.0
N H:GLY60 3.3 104.1 1.0
C H:GLY60 3.4 104.1 1.0
CA H:ASP59 3.4 108.6 1.0
O H:GLY62 3.8 103.5 1.0
CA H:GLY60 3.9 104.1 1.0
CB H:ILE64 4.0 117.3 1.0
N H:ASP59 4.3 108.6 1.0
CA H:ILE64 4.4 117.3 1.0
N H:ASN61 4.6 103.2 1.0
N H:GLY62 4.7 103.5 1.0
C H:GLY62 4.8 103.5 1.0
N H:ILE64 4.8 117.3 1.0
CB H:ASN61 4.9 103.2 1.0

Calcium binding site 7 out of 8 in 9vei

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Calcium binding site 7 out of 8 in the Structure of Human KCNQ1-KCNE1-Cam Complex with PIP2


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 7 of Structure of Human KCNQ1-KCNE1-Cam Complex with PIP2 within 5.0Å range:
probe atom residue distance (Å) B Occ
K:Ca201

b:103.2
occ:1.00
 O K:ASP21 2.4 123.7 1.0
CB K:ASP21 2.7 123.7 1.0
CB K:ASP23 2.7 123.3 1.0
C K:ASP21 2.9 123.7 1.0
N K:ASP23 3.0 123.3 1.0
CA K:ASP23 3.2 123.3 1.0
CA K:ASP21 3.3 123.7 1.0
O K:ASP23 3.5 123.3 1.0
C K:ASP23 3.6 123.3 1.0
C K:LYS22 3.8 119.6 1.0
N K:LYS22 3.9 119.6 1.0
N K:ASP21 4.0 123.7 1.0
CA K:LYS22 4.4 119.6 1.0
N K:GLY24 4.6 126.0 1.0
O K:LYS22 4.6 119.6 1.0
CB K:ASP25 4.6 124.2 1.0
N K:ASP25 4.7 124.2 1.0
CB K:THR27 4.8 110.1 1.0
O K:ASP25 4.9 124.2 1.0

Calcium binding site 8 out of 8 in 9vei

Go back to Calcium Binding Sites List in 9vei
Calcium binding site 8 out of 8 in the Structure of Human KCNQ1-KCNE1-Cam Complex with PIP2


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 8 of Structure of Human KCNQ1-KCNE1-Cam Complex with PIP2 within 5.0Å range:
probe atom residue distance (Å) B Occ
K:Ca202

b:115.0
occ:1.00
 O K:GLY60 2.3 104.1 1.0
CB K:ASP59 2.7 108.6 1.0
CG2 K:ILE64 2.8 117.3 1.0
C K:ASP59 3.0 108.6 1.0
O K:ASP59 3.2 108.6 1.0
N K:GLY60 3.3 104.1 1.0
C K:GLY60 3.4 104.1 1.0
CA K:ASP59 3.4 108.6 1.0
O K:GLY62 3.8 103.5 1.0
CA K:GLY60 3.9 104.1 1.0
CB K:ILE64 4.0 117.3 1.0
N K:ASP59 4.3 108.6 1.0
CA K:ILE64 4.4 117.3 1.0
N K:ASN61 4.6 103.2 1.0
N K:GLY62 4.7 103.5 1.0
C K:GLY62 4.8 103.5 1.0
N K:ILE64 4.8 117.3 1.0
CB K:ASN61 4.9 103.2 1.0

Reference:

C.Cui, L.Zhao, A.A.Kermani, S.Du, T.Pipatpolkai, M.Jiang, S.Chittori, Y.Z.Tan, J.Shi, L.Delemotte, J.Cui, J.Sun. Mechanisms of KCNQ1 Gating Modulation By KCNE1/3 For Cell-Specific Function. Cell Res. 2025.
ISSN: ISSN 1001-0602
PubMed: 40745202
DOI: 10.1038/S41422-025-01152-1
Page generated: Tue Aug 26 19:37:35 2025

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