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Potassium in PDB 9i0k: Mycobacterium Smegmatis Inosine Monophosphate Dehydrogenase (Impdh) E- Xmp* Intermediate, Compressed

Enzymatic activity of Mycobacterium Smegmatis Inosine Monophosphate Dehydrogenase (Impdh) E- Xmp* Intermediate, Compressed

All present enzymatic activity of Mycobacterium Smegmatis Inosine Monophosphate Dehydrogenase (Impdh) E- Xmp* Intermediate, Compressed:
1.1.1.205;

Potassium Binding Sites:

The binding sites of Potassium atom in the Mycobacterium Smegmatis Inosine Monophosphate Dehydrogenase (Impdh) E- Xmp* Intermediate, Compressed (pdb code 9i0k). This binding sites where shown within 5.0 Angstroms radius around Potassium atom.
In total 8 binding sites of Potassium where determined in the Mycobacterium Smegmatis Inosine Monophosphate Dehydrogenase (Impdh) E- Xmp* Intermediate, Compressed, PDB code: 9i0k:
Jump to Potassium binding site number: 1; 2; 3; 4; 5; 6; 7; 8;

Potassium binding site 1 out of 8 in 9i0k

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Potassium binding site 1 out of 8 in the Mycobacterium Smegmatis Inosine Monophosphate Dehydrogenase (Impdh) E- Xmp* Intermediate, Compressed


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of Mycobacterium Smegmatis Inosine Monophosphate Dehydrogenase (Impdh) E- Xmp* Intermediate, Compressed within 5.0Å range:
probe atom residue distance (Å) B Occ
A:K603

b:60.3
occ:1.00
 O D:GLY322 2.7 27.8 1.0
O A:SER496 2.8 56.1 1.0
O A:GLU495 2.8 54.4 1.0
O D:GLY320 3.0 29.7 1.0
O A:HIS497 3.2 55.8 1.0
O D:CYS325 3.2 26.7 1.0
O D:HOH706 3.3 27.0 1.0
C A:SER496 3.4 52.0 1.0
C A:HIS497 3.6 57.2 1.0
C D:GLY322 3.8 22.8 1.0
C A:GLU495 3.9 51.8 1.0
C D:PRO321 4.0 25.3 1.0
CB D:CYS325 4.0 23.7 1.0
CA A:SER496 4.0 51.9 1.0
C D:CYS325 4.0 24.6 1.0
CE1 A:HIS499 4.1 52.2 1.0
O D:PRO321 4.1 26.9 1.0
N A:HIS497 4.1 54.6 1.0
N D:GLY322 4.2 25.5 1.0
N A:PRO498 4.2 59.1 1.0
ND1 A:HIS499 4.2 52.6 1.0
C D:GLY320 4.2 27.4 1.0
N D:CYS325 4.2 20.7 1.0
CA D:CYS325 4.3 21.4 1.0
CA A:HIS497 4.3 55.7 1.0
CA D:PRO321 4.3 26.5 1.0
CA A:PRO498 4.4 57.3 1.0
N A:SER496 4.4 52.5 1.0
CA D:GLY322 4.6 23.0 1.0
N D:PRO321 4.8 28.7 1.0
N D:SER323 4.8 19.7 1.0
CA D:SER323 4.9 19.4 1.0
C D:SER323 4.9 21.9 1.0

Potassium binding site 2 out of 8 in 9i0k

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Potassium binding site 2 out of 8 in the Mycobacterium Smegmatis Inosine Monophosphate Dehydrogenase (Impdh) E- Xmp* Intermediate, Compressed


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 2 of Mycobacterium Smegmatis Inosine Monophosphate Dehydrogenase (Impdh) E- Xmp* Intermediate, Compressed within 5.0Å range:
probe atom residue distance (Å) B Occ
B:K601

b:46.0
occ:1.00
 O A:GLY322 2.7 28.2 1.0
O B:SER496 2.9 43.7 1.0
O B:GLU495 2.9 43.8 1.0
O B:HOH706 3.0 30.5 1.0
O A:GLY320 3.1 28.7 1.0
O B:HIS497 3.2 46.3 1.0
O A:CYS325 3.2 25.1 1.0
C B:SER496 3.4 40.7 1.0
C B:HIS497 3.6 40.3 1.0
CB A:CYS325 3.9 27.5 1.0
C A:GLY322 3.9 23.6 1.0
C A:CYS325 4.0 26.3 1.0
C B:GLU495 4.0 40.5 1.0
CA B:SER496 4.0 39.5 1.0
N B:PRO498 4.0 40.6 1.0
N B:HIS497 4.0 39.6 1.0
C A:PRO321 4.1 24.4 1.0
O A:PRO321 4.1 26.0 1.0
N A:CYS325 4.2 24.1 1.0
C A:GLY320 4.2 26.9 1.0
CA B:HIS497 4.2 38.1 1.0
CA A:CYS325 4.2 25.8 1.0
CE1 B:HIS499 4.2 36.4 1.0
N A:GLY322 4.2 24.8 1.0
ND1 B:HIS499 4.3 37.3 1.0
CA B:PRO498 4.3 38.2 1.0
N B:SER496 4.5 38.4 1.0
CA A:PRO321 4.5 25.6 1.0
CA A:GLY322 4.7 22.3 1.0
CD B:PRO498 4.9 38.1 1.0
N A:PRO321 4.9 28.6 1.0
N A:SER323 4.9 22.7 1.0
C A:SER323 4.9 25.2 1.0
CA A:SER323 4.9 22.9 1.0

Potassium binding site 3 out of 8 in 9i0k

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Potassium binding site 3 out of 8 in the Mycobacterium Smegmatis Inosine Monophosphate Dehydrogenase (Impdh) E- Xmp* Intermediate, Compressed


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 3 of Mycobacterium Smegmatis Inosine Monophosphate Dehydrogenase (Impdh) E- Xmp* Intermediate, Compressed within 5.0Å range:
probe atom residue distance (Å) B Occ
C:K601

b:41.7
occ:1.00
 O C:SER496 2.7 48.3 1.0
O B:GLY322 2.8 27.3 1.0
O C:GLU495 2.9 48.3 1.0
O B:CYS325 3.0 25.8 1.0
O B:GLY320 3.0 26.9 1.0
O C:HIS497 3.1 46.2 1.0
C C:SER496 3.3 42.8 1.0
C C:HIS497 3.5 43.3 1.0
O B:HOH703 3.7 30.0 1.0
C B:CYS325 3.8 25.4 1.0
C B:GLY322 3.9 22.5 1.0
CB B:CYS325 3.9 24.9 1.0
C C:GLU495 4.0 43.9 1.0
CA C:SER496 4.0 41.6 1.0
N C:HIS497 4.0 41.5 1.0
N C:PRO498 4.1 42.9 1.0
N B:CYS325 4.1 23.6 1.0
C B:PRO321 4.1 24.1 1.0
CA B:CYS325 4.2 24.9 1.0
CE1 C:HIS499 4.2 39.7 1.0
C B:GLY320 4.2 26.5 1.0
ND1 C:HIS499 4.2 38.9 1.0
CA C:HIS497 4.3 40.1 1.0
N B:GLY322 4.3 25.2 1.0
O B:PRO321 4.3 26.1 1.0
CA C:PRO498 4.4 40.6 1.0
CA B:PRO321 4.5 24.9 1.0
N C:SER496 4.5 42.4 1.0
CA B:GLY322 4.7 21.3 1.0
N B:PRO321 4.9 28.8 1.0
N B:SER323 4.9 20.6 1.0
C B:SER323 4.9 23.4 1.0
CD C:PRO498 4.9 40.5 1.0
CA B:SER323 4.9 20.9 1.0
N B:THR326 5.0 25.8 1.0

Potassium binding site 4 out of 8 in 9i0k

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Potassium binding site 4 out of 8 in the Mycobacterium Smegmatis Inosine Monophosphate Dehydrogenase (Impdh) E- Xmp* Intermediate, Compressed


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 4 of Mycobacterium Smegmatis Inosine Monophosphate Dehydrogenase (Impdh) E- Xmp* Intermediate, Compressed within 5.0Å range:
probe atom residue distance (Å) B Occ
D:K601

b:46.3
occ:1.00
 O C:GLY322 2.7 31.0 1.0
O D:SER496 2.8 51.5 1.0
O D:GLU495 2.9 48.8 1.0
O C:GLY320 3.0 30.4 1.0
O C:CYS325 3.0 30.0 1.0
O C:HOH703 3.1 29.7 1.0
O D:HIS497 3.2 48.2 1.0
C D:SER496 3.4 45.6 1.0
C D:HIS497 3.7 47.4 1.0
CB C:CYS325 3.8 27.6 1.0
C C:GLY322 3.9 25.4 1.0
C C:CYS325 3.9 26.7 1.0
C C:PRO321 4.0 25.3 1.0
C D:GLU495 4.0 44.6 1.0
CA D:SER496 4.1 45.1 1.0
N C:CYS325 4.1 23.6 1.0
O C:PRO321 4.1 25.0 1.0
CE1 D:HIS499 4.1 42.3 1.0
C C:GLY320 4.1 30.2 1.0
CA C:CYS325 4.1 25.0 1.0
N D:HIS497 4.1 44.8 1.0
N D:PRO498 4.2 46.8 1.0
ND1 D:HIS499 4.2 42.9 1.0
N C:GLY322 4.2 27.3 1.0
CA D:HIS497 4.4 46.9 1.0
CA C:PRO321 4.4 28.5 1.0
CA D:PRO498 4.5 42.7 1.0
N D:SER496 4.5 44.4 1.0
CA C:GLY322 4.7 23.9 1.0
N C:PRO321 4.8 31.1 1.0
C C:SER323 4.8 21.8 1.0
N C:SER323 4.8 20.4 1.0
O C:SER323 4.9 23.7 1.0
CA C:SER323 4.9 20.8 1.0

Potassium binding site 5 out of 8 in 9i0k

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Potassium binding site 5 out of 8 in the Mycobacterium Smegmatis Inosine Monophosphate Dehydrogenase (Impdh) E- Xmp* Intermediate, Compressed


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 5 of Mycobacterium Smegmatis Inosine Monophosphate Dehydrogenase (Impdh) E- Xmp* Intermediate, Compressed within 5.0Å range:
probe atom residue distance (Å) B Occ
E:K603

b:39.9
occ:1.00
 O E:GLY322 2.6 26.4 1.0
O E:GLY320 2.8 28.8 0.9
O H:SER496 2.9 46.2 1.0
O H:GLU495 3.0 46.3 1.0
O E:CYS325 3.1 26.9 1.0
O E:HOH709 3.2 28.0 1.0
O H:HIS497 3.5 43.7 1.0
C H:SER496 3.6 40.9 1.0
CB E:CYS325 3.6 23.9 1.0
C E:GLY322 3.8 21.9 1.0
C E:CYS325 3.8 25.3 1.0
C H:HIS497 3.9 39.8 1.0
C E:PRO321 3.9 25.4 1.0
C E:GLY320 3.9 29.4 0.9
N E:GLY322 3.9 26.3 1.0
CA E:CYS325 4.1 22.3 1.0
N E:CYS325 4.1 21.9 1.0
C H:GLU495 4.1 41.8 1.0
O E:PRO321 4.2 26.5 1.0
CA H:SER496 4.2 38.9 1.0
CA E:PRO321 4.2 25.0 1.0
CE1 H:HIS499 4.2 38.6 1.0
N H:PRO498 4.3 41.0 1.0
ND1 H:HIS499 4.3 40.0 1.0
N H:HIS497 4.3 40.6 1.0
CA E:GLY322 4.4 22.3 1.0
CA H:PRO498 4.5 37.3 1.0
CA H:HIS497 4.6 40.0 1.0
N E:PRO321 4.6 28.4 1.0
N H:SER496 4.6 39.7 1.0
N E:SER323 4.8 19.1 1.0
N E:THR326 4.9 24.5 1.0
C E:SER323 5.0 21.2 1.0
CA E:SER323 5.0 19.5 1.0
CA E:GLY320 5.0 28.8 0.9

Potassium binding site 6 out of 8 in 9i0k

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Potassium binding site 6 out of 8 in the Mycobacterium Smegmatis Inosine Monophosphate Dehydrogenase (Impdh) E- Xmp* Intermediate, Compressed


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 6 of Mycobacterium Smegmatis Inosine Monophosphate Dehydrogenase (Impdh) E- Xmp* Intermediate, Compressed within 5.0Å range:
probe atom residue distance (Å) B Occ
E:K604

b:46.3
occ:1.00
 O F:GLY322 2.6 26.5 1.0
O E:SER496 2.7 42.4 1.0
O E:GLU495 2.7 43.7 1.0
O F:GLY320 3.1 30.4 1.0
O E:HIS497 3.1 40.6 1.0
O F:CYS325 3.2 24.6 1.0
C E:SER496 3.3 36.8 1.0
O F:HOH708 3.6 58.5 1.0
C E:HIS497 3.6 38.1 1.0
C F:GLY322 3.8 22.7 1.0
C E:GLU495 3.9 40.1 1.0
C F:PRO321 4.0 25.0 1.0
CA E:SER496 4.0 36.6 1.0
CD2 E:HIS499 4.1 35.9 1.0
N E:HIS497 4.1 36.7 1.0
C F:CYS325 4.1 24.6 1.0
O F:PRO321 4.1 27.0 1.0
N E:PRO498 4.1 39.2 1.0
CB F:CYS325 4.1 24.4 1.0
N F:GLY322 4.1 23.5 1.0
C F:GLY320 4.2 28.5 1.0
N F:CYS325 4.3 21.7 1.0
NE2 E:HIS499 4.3 35.8 1.0
CA E:HIS497 4.3 37.3 1.0
CA E:PRO498 4.3 39.5 1.0
CA F:PRO321 4.4 24.9 1.0
N E:SER496 4.4 38.1 1.0
CA F:CYS325 4.4 22.4 1.0
CA F:GLY322 4.6 20.6 1.0
N F:SER323 4.7 21.5 1.0
N F:PRO321 4.8 26.8 1.0
CA F:SER323 4.8 20.3 1.0
C F:SER323 4.8 24.1 1.0
O F:SER323 4.9 25.9 1.0

Potassium binding site 7 out of 8 in 9i0k

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Potassium binding site 7 out of 8 in the Mycobacterium Smegmatis Inosine Monophosphate Dehydrogenase (Impdh) E- Xmp* Intermediate, Compressed


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 7 of Mycobacterium Smegmatis Inosine Monophosphate Dehydrogenase (Impdh) E- Xmp* Intermediate, Compressed within 5.0Å range:
probe atom residue distance (Å) B Occ
F:K603

b:50.9
occ:1.00
 O G:GLY322 2.8 26.3 1.0
O G:GLY320 2.8 29.4 1.0
O F:GLU495 2.8 48.2 1.0
O F:SER496 2.9 44.7 1.0
O G:CYS325 3.0 22.1 1.0
O G:HOH709 3.1 44.6 1.0
O F:HIS497 3.3 48.9 1.0
C F:SER496 3.4 44.1 1.0
C F:HIS497 3.8 45.5 1.0
C G:CYS325 3.8 24.3 1.0
CB G:CYS325 3.9 23.3 1.0
C G:GLY322 3.9 20.5 1.0
C G:PRO321 3.9 21.3 1.0
C G:GLY320 3.9 25.2 1.0
C F:GLU495 4.0 45.9 1.0
CA F:SER496 4.0 45.0 1.0
N G:GLY322 4.1 21.7 1.0
O G:PRO321 4.1 23.8 1.0
N F:HIS497 4.2 44.9 1.0
CA G:CYS325 4.2 21.8 1.0
N G:CYS325 4.2 19.9 1.0
CA G:PRO321 4.3 22.9 1.0
N F:PRO498 4.3 46.4 1.0
CA F:HIS497 4.4 44.6 1.0
CD2 F:HIS499 4.4 44.2 1.0
N F:SER496 4.5 45.4 1.0
CA G:GLY322 4.6 19.4 1.0
N G:PRO321 4.6 25.4 1.0
CA F:PRO498 4.6 44.9 1.0
NE2 F:HIS499 4.7 43.5 1.0
CA G:GLY320 4.9 25.9 1.0
N G:THR326 4.9 23.1 1.0
N G:SER323 4.9 18.9 1.0

Potassium binding site 8 out of 8 in 9i0k

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Potassium binding site 8 out of 8 in the Mycobacterium Smegmatis Inosine Monophosphate Dehydrogenase (Impdh) E- Xmp* Intermediate, Compressed


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 8 of Mycobacterium Smegmatis Inosine Monophosphate Dehydrogenase (Impdh) E- Xmp* Intermediate, Compressed within 5.0Å range:
probe atom residue distance (Å) B Occ
G:K603

b:58.0
occ:1.00
 O G:SER496 2.8 52.7 1.0
O H:GLY322 2.8 26.8 1.0
O G:GLU495 2.9 51.9 1.0
O H:CYS325 3.1 26.7 1.0
O G:HIS497 3.2 52.1 1.0
O H:HOH708 3.3 30.2 1.0
O H:GLY320 3.3 29.2 1.0
C G:SER496 3.4 50.8 1.0
C G:HIS497 3.6 53.0 1.0
C H:CYS325 3.9 23.6 1.0
C H:GLY322 3.9 22.0 1.0
N G:PRO498 4.0 53.9 1.0
C G:GLU495 4.0 51.4 1.0
CB H:CYS325 4.0 23.6 1.0
CA G:SER496 4.1 47.8 1.0
N G:HIS497 4.2 50.6 1.0
N H:CYS325 4.2 20.4 1.0
CE1 G:HIS499 4.2 53.3 1.0
CA G:PRO498 4.2 53.7 1.0
CA H:CYS325 4.3 22.6 1.0
ND1 G:HIS499 4.3 54.8 1.0
C H:PRO321 4.3 24.5 1.0
CA G:HIS497 4.3 51.6 1.0
N H:GLY322 4.4 25.8 1.0
O H:PRO321 4.4 27.3 1.0
C H:GLY320 4.4 26.5 1.0
N G:SER496 4.5 49.8 1.0
CA H:PRO321 4.7 25.1 1.0
CA H:GLY322 4.8 22.0 1.0
C H:SER323 4.9 22.3 1.0
CD G:PRO498 4.9 50.5 1.0
N H:SER323 4.9 20.4 1.0
O H:SER323 4.9 26.5 1.0
CA H:SER323 4.9 20.0 1.0
N H:THR326 5.0 22.3 1.0

Reference:

O.Bulvas, Z.Knejzlik, A.Filimonenko, T.Kouba, I.Pichova. Conformational Landscape of the Mycobacterial Inosine 5'-Monophosphate Dehydrogenase Octamerization Interface. J.Struct.Biol. V. 217 08198 2025.
ISSN: ESSN 1095-8657
PubMed: 40107326
DOI: 10.1016/J.JSB.2025.108198
Page generated: Sat Aug 9 19:11:42 2025

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