SMTL ID : 2bfd.1

Reactivity modulation of human branched-chain alpha-ketoacid dehydrogenase by an internal molecular switch

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 1.39 Å

Oligo State

hetero-2-2-mer

Ligands

4 x K: POTASSIUM ION(Non-covalent)

K.1: 4 residues within 4Å: Chain A: S.161, P.163, T.166, Q.167 5 PLIP interactions: 4 interactions with chain A, 1 Ligand-Water interactions Metal complexes: A:S.161, A:S.161, A:P.163, A:T.166, H2O.5 K.5: 7 residues within 4Å: Chain B: G.128, L.130, T.131, C.178, I.179, D.181, N.183 5 PLIP interactions: 4 interactions with chain B, 1 Ligand-Water interactions Metal complexes: B:L.130, B:C.178, B:D.181, B:N.183, H2O.19 K.8: 4 residues within 4Å: Chain C: S.161, P.163, T.166, Q.167 5 PLIP interactions: 4 interactions with chain C, 1 Ligand-Water interactions Metal complexes: C:S.161, C:S.161, C:P.163, C:T.166, H2O.28 K.12: 7 residues within 4Å: Chain D: G.128, L.130, T.131, C.178, I.179, D.181, N.183 5 PLIP interactions: 4 interactions with chain D, 1 Ligand-Water interactions Metal complexes: D:L.130, D:C.178, D:D.181, D:N.183, H2O.42

2 x MN: MANGANESE (II) ION(Non-covalent)

MN.2: 4 residues within 4Å: Chain A: E.193, N.222, Y.224 Ligands: TPP.4 4 PLIP interactions: 3 interactions with chain A, 1 Ligand-Water interactions Metal complexes: A:E.193, A:E.193, A:Y.224, H2O.14 MN.9: 4 residues within 4Å: Chain C: E.193, N.222, Y.224 Ligands: TPP.11 4 PLIP interactions: 3 interactions with chain C, 1 Ligand-Water interactions Metal complexes: C:E.193, C:E.193, C:Y.224, H2O.37

2 x CL: CHLORIDE ION(Non-functional Binders)

CL.3: 2 residues within 4Å: Chain A: Q.369 Chain B: K.182 Ligand excluded by PLIP CL.10: 2 residues within 4Å: Chain C: Q.369 Chain D: K.182 Ligand excluded by PLIP

2 x TPP: THIAMINE DIPHOSPHATE(Non-covalent)

TPP.4: 21 residues within 4Å: Chain A: Q.112, R.114, S.162, P.163, L.164, G.192, E.193, G.194, A.195, E.198, R.220, N.222, Y.224, A.225, I.226 Chain D: E.46, L.74, E.76, Q.98, Y.102 Ligands: MN.2 19 PLIP interactions: 16 interactions with chain A, 3 interactions with chain D Hydrophobic interactions: A:A.225, A:I.226, A:I.226, D:Y.102 Hydrogen bonds: A:Q.112, A:S.162, A:G.192, A:E.193, A:G.194, A:A.195 Water bridges: A:R.114, A:R.114, A:R.114, A:R.220, A:N.222, D:Y.102 Salt bridges: A:R.114, A:R.220 pi-Stacking: D:Y.102 TPP.11: 21 residues within 4Å: Chain B: E.46, L.74, E.76, Q.98, Y.102 Chain C: Q.112, R.114, S.162, P.163, L.164, G.192, E.193, G.194, A.195, E.198, R.220, N.222, Y.224, A.225, I.226 Ligands: MN.9 20 PLIP interactions: 18 interactions with chain C, 2 interactions with chain B Hydrophobic interactions: C:A.225, C:I.226, C:I.226, B:Y.102 Hydrogen bonds: C:Q.112, C:S.162, C:G.192, C:E.193, C:G.194, C:A.195, C:E.198, C:N.222 Water bridges: C:R.114, C:R.114, C:R.114, C:R.220, C:N.222 Salt bridges: C:R.114, C:R.220 pi-Stacking: B:Y.102

2 x GOL: GLYCEROL(Non-functional Binders)

GOL.6: 8 residues within 4Å: Chain A: Q.374 Chain B: W.260, E.290, T.294, E.297 Chain D: L.283, T.284, R.309 6 PLIP interactions: 2 interactions with chain D, 4 interactions with chain B Hydrogen bonds: D:R.309, B:E.290, B:E.290, B:E.297 Water bridges: D:D.314, B:W.260 GOL.13: 8 residues within 4Å: Chain B: L.283, T.284, R.309 Chain C: Q.374 Chain D: W.260, E.290, T.294, E.297 6 PLIP interactions: 2 interactions with chain B, 4 interactions with chain D Hydrogen bonds: B:T.284, B:R.309, D:E.290, D:T.294, D:E.297 Water bridges: D:W.260

2 x MPD: (4S)-2-METHYL-2,4-PENTANEDIOL(Non-functional Binders)

MPD.7: 1 residues within 4Å: Chain B: V.58 No protein-ligand interaction detected (PLIP) MPD.14: 1 residues within 4Å: Chain D: V.58 No protein-ligand interaction detected (PLIP)

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Machius, M. et al., A Versatile Conformational Switch Regulates Reactivity in Human Branched-Chain Alpha-Ketoacid Dehydrogenase. Structure (2006)

Release Date

2006-02-16

Peptides

2-OXOISOVALERATE DEHYDROGENASE ALPHA SUBUNIT: AC
2-OXOISOVALERATE DEHYDROGENASE BETA SUBUNIT: BD

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

C
A

B
B

D
B

2-OXOISOVALERATE DEHYDROGENASE ALPHA SUBUNIT

2-OXOISOVALERATE DEHYDROGENASE BETA SUBUNIT

Related Entries With Identical Sequence