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Potassium in PDB 6dp4: Crystal Structure of Bacillus Halodurans Ribonuclease H1 in Complex with An Rna/Dna Hybrid: Reaction in 20 Mm MG2+ and 75 Mm K+ For 40 S at 21 C

Enzymatic activity of Crystal Structure of Bacillus Halodurans Ribonuclease H1 in Complex with An Rna/Dna Hybrid: Reaction in 20 Mm MG2+ and 75 Mm K+ For 40 S at 21 C

All present enzymatic activity of Crystal Structure of Bacillus Halodurans Ribonuclease H1 in Complex with An Rna/Dna Hybrid: Reaction in 20 Mm MG2+ and 75 Mm K+ For 40 S at 21 C:
3.1.26.4;

Protein crystallography data

The structure of Crystal Structure of Bacillus Halodurans Ribonuclease H1 in Complex with An Rna/Dna Hybrid: Reaction in 20 Mm MG2+ and 75 Mm K+ For 40 S at 21 C, PDB code: 6dp4 was solved by N.L.Samara, W.Yang, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å) 19.92 / 1.37
Space group C 1 2 1
Cell size a, b, c (Å), α, β, γ (°) 81.525, 37.674, 62.050, 90.00, 96.52, 90.00
R / Rfree (%) 15.7 / 17.6

Other elements in 6dp4:

The structure of Crystal Structure of Bacillus Halodurans Ribonuclease H1 in Complex with An Rna/Dna Hybrid: Reaction in 20 Mm MG2+ and 75 Mm K+ For 40 S at 21 C also contains other interesting chemical elements:

Magnesium (Mg) 2 atoms
Iodine (I) 3 atoms

Potassium Binding Sites:

The binding sites of Potassium atom in the Crystal Structure of Bacillus Halodurans Ribonuclease H1 in Complex with An Rna/Dna Hybrid: Reaction in 20 Mm MG2+ and 75 Mm K+ For 40 S at 21 C (pdb code 6dp4). This binding sites where shown within 5.0 Angstroms radius around Potassium atom.
In total 3 binding sites of Potassium where determined in the Crystal Structure of Bacillus Halodurans Ribonuclease H1 in Complex with An Rna/Dna Hybrid: Reaction in 20 Mm MG2+ and 75 Mm K+ For 40 S at 21 C, PDB code: 6dp4:
Jump to Potassium binding site number: 1; 2; 3;

Potassium binding site 1 out of 3 in 6dp4

Go back to Potassium Binding Sites List in 6dp4
Potassium binding site 1 out of 3 in the Crystal Structure of Bacillus Halodurans Ribonuclease H1 in Complex with An Rna/Dna Hybrid: Reaction in 20 Mm MG2+ and 75 Mm K+ For 40 S at 21 C


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of Crystal Structure of Bacillus Halodurans Ribonuclease H1 in Complex with An Rna/Dna Hybrid: Reaction in 20 Mm MG2+ and 75 Mm K+ For 40 S at 21 C within 5.0Å range:
probe atom residue distance (Å) B Occ
A:K203

b:27.2
occ:0.10
O b:HOH101 0.6 29.2 0.9
H A:ARG195 2.2 41.7 0.9
O A:HOH336 2.6 33.0 1.0
OD1 A:ASP192 2.8 24.0 1.0
OP2 b:G6 2.9 27.1 1.0
N A:ARG195 3.0 34.8 0.9
H A:GLY194 3.0 34.0 1.0
O A:HOH301 3.1 26.2 0.2
HB2 A:ARG195 3.1 44.6 0.9
H A:TYR193 3.2 29.6 1.0
OD2 A:ASP192 3.3 25.6 1.0
N A:GLY194 3.3 28.3 1.0
O A:HOH310 3.4 24.6 1.0
HB2 A:TYR193 3.4 34.3 1.0
CG A:ASP192 3.4 24.0 1.0
N A:LYS196 3.5 44.0 0.8
NZ A:LYS196 3.5 31.8 0.8
CG A:LYS196 3.6 35.5 0.8
OP3 b:C5 3.7 26.5 0.8
CA A:ARG195 3.8 37.2 0.9
N A:TYR193 3.8 24.7 1.0
CB A:ARG195 3.8 37.1 0.9
C A:TYR193 3.9 32.2 1.0
C A:GLY194 3.9 34.3 1.0
MG A:MG201 3.9 21.4 1.0
CA A:GLY194 4.0 29.4 1.0
P b:G6 4.0 24.2 1.0
C A:ARG195 4.0 42.8 0.9
HG3 A:ARG195 4.0 44.9 0.9
HA2 A:GLY194 4.1 35.2 1.0
CA A:TYR193 4.1 27.1 1.0
CB A:TYR193 4.1 28.6 1.0
CB A:LYS196 4.2 38.0 0.8
O5' b:G6 4.3 27.3 1.0
CD A:LYS196 4.3 37.5 0.8
OP1 b:G6 4.4 24.4 1.0
HB3 A:TYR193 4.4 34.3 1.0
CE A:LYS196 4.5 36.3 0.8
CA A:LYS196 4.5 43.8 0.8
CG A:ARG195 4.5 37.4 0.9
HD2 A:ARG195 4.6 51.4 0.9
HB3 A:ARG195 4.6 44.6 0.9
HA A:ARG195 4.7 44.7 0.9
O A:TYR193 4.7 35.7 1.0
C A:ASP192 4.8 24.9 1.0
CB A:ASP192 4.8 23.6 1.0
HA3 A:GLY194 4.9 35.2 1.0
HA A:ASP192 4.9 27.7 1.0
O A:GLY194 5.0 39.1 1.0

Potassium binding site 2 out of 3 in 6dp4

Go back to Potassium Binding Sites List in 6dp4
Potassium binding site 2 out of 3 in the Crystal Structure of Bacillus Halodurans Ribonuclease H1 in Complex with An Rna/Dna Hybrid: Reaction in 20 Mm MG2+ and 75 Mm K+ For 40 S at 21 C


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 2 of Crystal Structure of Bacillus Halodurans Ribonuclease H1 in Complex with An Rna/Dna Hybrid: Reaction in 20 Mm MG2+ and 75 Mm K+ For 40 S at 21 C within 5.0Å range:
probe atom residue distance (Å) B Occ
A:K204

b:28.5
occ:0.40
OP2 b:C5 2.5 30.0 0.2
OP2 b:C5 2.6 26.3 0.8
O B:HOH108 2.8 36.9 1.0
OE2 A:GLU188 3.0 50.6 1.0
O A:HOH311 3.1 23.1 1.0
OE1 A:GLU188 3.1 60.9 1.0
O A:HOH369 3.2 22.2 1.0
CD A:GLU188 3.4 49.2 1.0
HG21 A:THR183 3.4 31.3 1.0
P b:C5 3.5 24.1 0.8
O b:HOH102 3.6 35.7 1.0
NZ A:LYS196 3.7 31.8 0.8
P b:C5 3.7 25.1 0.2
C5' B:U4 3.7 27.1 0.8
OP3 b:C5 3.7 26.5 0.8
HG1 A:THR183 3.8 29.7 1.0
OD2 A:ASP132 3.8 32.2 1.0
CE A:LYS196 4.0 36.3 0.8
O A:HOH301 4.0 26.2 0.2
OP1 b:C5 4.1 26.4 0.8
O3' B:U4 4.1 21.0 0.2
C5' B:U4 4.2 31.2 0.2
OP1 b:C5 4.2 30.7 0.2
C3' B:U4 4.3 28.2 0.2
CG2 A:THR183 4.3 26.1 1.0
OP1 B:U4 4.3 26.4 1.0
O5' B:U4 4.3 23.3 0.2
CG A:ASP132 4.3 25.6 1.0
HB2 A:ASP132 4.4 24.9 1.0
HG23 A:THR183 4.4 31.3 1.0
O5' B:U4 4.4 29.5 0.8
MG A:MG201 4.5 21.4 1.0
OG1 A:THR183 4.5 24.7 1.0
HA A:GLU188 4.7 31.8 1.0
P B:U4 4.8 23.4 1.0
C4' B:U4 4.8 26.7 0.2
CB A:ASP132 4.8 20.8 1.0
OP2 B:U4 4.9 24.5 1.0
C4' B:U4 4.9 27.7 0.8
O5' b:C5 4.9 20.7 0.8
CG A:GLU188 4.9 34.6 1.0
HB3 A:ASP132 4.9 24.9 1.0
H A:ILE189 4.9 26.4 1.0
OD1 A:ASP132 4.9 22.8 1.0
O5' b:C5 4.9 28.1 0.2
HG22 A:THR183 5.0 31.3 1.0
CB A:THR183 5.0 28.5 1.0

Potassium binding site 3 out of 3 in 6dp4

Go back to Potassium Binding Sites List in 6dp4
Potassium binding site 3 out of 3 in the Crystal Structure of Bacillus Halodurans Ribonuclease H1 in Complex with An Rna/Dna Hybrid: Reaction in 20 Mm MG2+ and 75 Mm K+ For 40 S at 21 C


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 3 of Crystal Structure of Bacillus Halodurans Ribonuclease H1 in Complex with An Rna/Dna Hybrid: Reaction in 20 Mm MG2+ and 75 Mm K+ For 40 S at 21 C within 5.0Å range:
probe atom residue distance (Å) B Occ
C:K101

b:40.2
occ:0.40
O6 C:DG5 2.6 29.1 1.0
O C:HOH204 2.7 26.9 0.6
O C:HOH208 3.0 34.5 1.0
C6 C:DG5 3.7 28.0 1.0
O4 C:DT4 3.8 24.9 1.0
O C:HOH209 3.9 37.2 1.0
N7 C:DG5 4.1 23.9 1.0
N4 B:C2 4.1 30.5 1.0
N6 B:A1 4.1 27.4 1.0
C5 C:DG5 4.2 24.1 1.0
C7 C:DT4 4.5 25.3 1.0
C4 C:DT4 4.5 22.5 1.0
O4 C:DT6 4.7 30.5 1.0
N1 C:DG5 4.9 23.7 1.0
C5 C:DT4 4.9 22.0 1.0
N6 B:A3 4.9 23.9 1.0

Reference:

N.L.Samara, W.Yang. Cation Trafficking Propels Rna Hydrolysis. Nat. Struct. Mol. Biol. V. 25 715 2018.
ISSN: ESSN 1545-9985
PubMed: 30076410
DOI: 10.1038/S41594-018-0099-4
Page generated: Mon Aug 12 15:51:28 2024

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