Calcium in PDB 7ljb: Human Traak K+ Channel Mutant G158D in A K+ Bound Conductive Conformation

Protein crystallography data

The structure of Human Traak K+ Channel Mutant G158D in A K+ Bound Conductive Conformation, PDB code: 7ljb was solved by R.A.Rietmeijer, S.G.Brohawn, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å) 48.03 / 2.97
Space group P 1 21 1
Cell size a, b, c (Å), α, β, γ (°) 80.14, 137.31, 96.3, 90, 94.72, 90
R / Rfree (%) 19.6 / 24

Other elements in 7ljb:

The structure of Human Traak K+ Channel Mutant G158D in A K+ Bound Conductive Conformation also contains other interesting chemical elements:

Potassium (K) 6 atoms

Calcium Binding Sites:

The binding sites of Calcium atom in the Human Traak K+ Channel Mutant G158D in A K+ Bound Conductive Conformation (pdb code 7ljb). This binding sites where shown within 5.0 Angstroms radius around Calcium atom.
In total 3 binding sites of Calcium where determined in the Human Traak K+ Channel Mutant G158D in A K+ Bound Conductive Conformation, PDB code: 7ljb:
Jump to Calcium binding site number: 1; 2; 3;

Calcium binding site 1 out of 3 in 7ljb

Go back to Calcium Binding Sites List in 7ljb
Calcium binding site 1 out of 3 in the Human Traak K+ Channel Mutant G158D in A K+ Bound Conductive Conformation


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of Human Traak K+ Channel Mutant G158D in A K+ Bound Conductive Conformation within 5.0Å range:
probe atom residue distance (Å) B Occ
A:Ca304

b:99.1
occ:1.00
OD2 A:ASP249 1.9 201.1 1.0
O A:SER112 2.3 106.3 1.0
OD1 A:ASP115 2.4 123.3 1.0
CG A:ASP115 2.8 122.6 1.0
OD2 A:ASP115 2.8 127.3 1.0
OG A:SER118 2.8 93.3 1.0
O A:SER110 3.0 183.0 1.0
CG A:ASP249 3.1 198.9 1.0
C A:SER112 3.6 114.0 1.0
CD A:PRO250 3.6 223.3 1.0
OD1 A:ASP249 3.8 194.2 1.0
CB A:SER118 3.9 93.1 1.0
CB A:ASP115 4.1 120.5 1.0
CB A:ASP249 4.1 194.7 1.0
CA A:ASP249 4.2 199.4 1.0
C A:SER110 4.2 184.1 1.0
N A:SER112 4.4 145.3 1.0
CA A:SER112 4.4 130.1 1.0
N A:ALA113 4.5 104.5 1.0
N A:PRO250 4.5 222.1 1.0
CG A:PRO250 4.6 227.6 1.0
CA A:ALA113 4.6 98.9 1.0
N A:SER110 4.7 188.2 1.0
N A:SER118 4.7 99.1 1.0
C A:HIS111 4.7 158.3 1.0
C A:ASP249 4.8 209.2 1.0
CB A:SER112 4.8 136.9 1.0
CA A:SER118 4.9 95.0 1.0
O A:HIS111 5.0 141.3 1.0
N A:ASP115 5.0 108.2 1.0

Calcium binding site 2 out of 3 in 7ljb

Go back to Calcium Binding Sites List in 7ljb
Calcium binding site 2 out of 3 in the Human Traak K+ Channel Mutant G158D in A K+ Bound Conductive Conformation


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 2 of Human Traak K+ Channel Mutant G158D in A K+ Bound Conductive Conformation within 5.0Å range:
probe atom residue distance (Å) B Occ
A:Ca305

b:113.7
occ:1.00
O A:HOH401 2.3 87.8 1.0
O A:GLY98 2.5 93.1 1.0
O B:HOH411 2.9 70.5 1.0
OE2 B:GLU58 3.0 98.5 1.0
OD2 A:ASP100 3.4 155.6 1.0
CD B:GLU58 3.5 93.1 1.0
O A:HIS111 3.6 141.3 1.0
CG A:ASP100 3.6 136.3 1.0
CG B:GLU58 3.6 87.7 1.0
C A:GLY98 3.6 91.2 1.0
N A:ASP100 4.0 98.7 1.0
C A:ALA99 4.1 93.4 1.0
OD1 A:ASP100 4.1 138.2 1.0
CB A:ASP100 4.1 119.2 1.0
OE1 B:GLN62 4.2 74.0 1.0
CA A:ALA99 4.2 93.0 1.0
N A:ALA99 4.3 90.9 1.0
OE1 B:GLU58 4.4 96.0 1.0
C A:HIS111 4.4 158.3 1.0
N A:ALA113 4.5 104.5 1.0
O B:HOH421 4.6 87.0 1.0
CB A:ALA113 4.6 96.4 1.0
CA A:ASP100 4.6 104.5 1.0
O A:ALA99 4.7 95.1 1.0
CA A:GLY98 4.7 88.8 1.0
CA A:SER112 4.8 130.1 1.0
CB A:HIS111 4.9 158.7 1.0
N A:SER112 5.0 145.3 1.0

Calcium binding site 3 out of 3 in 7ljb

Go back to Calcium Binding Sites List in 7ljb
Calcium binding site 3 out of 3 in the Human Traak K+ Channel Mutant G158D in A K+ Bound Conductive Conformation


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 3 of Human Traak K+ Channel Mutant G158D in A K+ Bound Conductive Conformation within 5.0Å range:
probe atom residue distance (Å) B Occ
G:Ca301

b:100.1
occ:1.00
OE2 G:GLU10 2.2 98.8 1.0
O G:LYS19 2.8 71.4 1.0
CD G:GLU10 3.0 100.5 1.0
OE1 G:GLU10 3.2 99.7 1.0
C G:LYS19 4.0 76.2 1.0
CG G:GLU10 4.4 94.5 1.0
N G:LYS19 4.4 81.3 1.0
CA G:LYS19 4.7 80.3 1.0
CB G:LYS19 4.9 86.9 1.0
CB G:GLU10 5.0 91.9 1.0

Reference:

R.A.Rietmeijer, B.Sorum, B.Li, S.G.Brohawn. Physical Basis For Distinct Basal and Mechanically-Gated Activity of the Human K + Channel Traak Biorxiv 2021.
DOI: 10.1101/2021.06.04.447000
Page generated: Sat Jul 10 11:32:13 2021

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