SMTL ID : 6q21.1

MOLECULAR SWITCH FOR SIGNAL TRANSDUCTION: STRUCTURAL DIFFERENCES BETWEEN ACTIVE AND INACTIVE FORMS OF PROTOONCOGENIC RAS PROTEINS

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 1.95 Å

Oligo State

homo-tetramer

Ligands

4 x MG: MAGNESIUM ION(Non-covalent)

MG.1: 5 residues within 4Å: Chain A: S.17, T.35, D.57, T.58 Ligands: GCP.2 4 PLIP interactions: 2 interactions with chain A, 2 Ligand-Water interactions Metal complexes: A:S.17, A:T.35, H2O.1, H2O.1 MG.3: 4 residues within 4Å: Chain B: S.17, T.35, D.57 Ligands: GCP.4 4 PLIP interactions: 2 interactions with chain B, 2 Ligand-Water interactions Metal complexes: B:S.17, B:T.35, H2O.4, H2O.4 MG.5: 3 residues within 4Å: Chain C: S.17, T.35 Ligands: GCP.6 4 PLIP interactions: 2 interactions with chain C, 2 Ligand-Water interactions Metal complexes: C:S.17, C:T.35, H2O.7, H2O.7 MG.7: 3 residues within 4Å: Chain D: S.17, D.57 Ligands: GCP.8 4 PLIP interactions: 1 interactions with chain D, 3 Ligand-Water interactions Metal complexes: D:S.17, H2O.12, H2O.12, H2O.12

4 x GCP: PHOSPHOMETHYLPHOSPHONIC ACID GUANYLATE ESTER(Non-covalent)

GCP.2: 24 residues within 4Å: Chain A: A.11, G.12, G.13, V.14, G.15, K.16, S.17, A.18, F.28, V.29, D.30, Y.32, P.34, T.35, A.59, G.60, Q.61, N.116, K.117, D.119, S.145, A.146, K.147 Ligands: MG.1 25 PLIP interactions: 25 interactions with chain A Hydrogen bonds: A:G.13, A:G.15, A:K.16, A:K.16, A:K.16, A:S.17, A:A.18, A:T.35, A:G.60, A:N.116, A:K.117, A:K.117, A:A.146, A:K.147, A:K.147 Water bridges: A:S.17, A:D.30, A:D.30, A:T.35, A:T.35, A:T.35, A:G.60 Salt bridges: A:D.119 pi-Stacking: A:F.28, A:F.28 GCP.4: 24 residues within 4Å: Chain B: A.11, G.12, G.13, V.14, G.15, K.16, S.17, A.18, F.28, V.29, D.30, Y.32, P.34, T.35, G.60, Q.61, N.116, K.117, D.119, L.120, S.145, A.146, K.147 Ligands: MG.3 27 PLIP interactions: 27 interactions with chain B Hydrogen bonds: B:G.13, B:G.15, B:K.16, B:K.16, B:K.16, B:S.17, B:A.18, B:V.29, B:Y.32, B:T.35, B:T.35, B:T.58, B:G.60, B:Q.61, B:N.116, B:K.117, B:K.117, B:A.146, B:K.147 Water bridges: B:S.17, B:D.33, B:D.119, B:K.147 Salt bridges: B:D.119 pi-Stacking: B:F.28, B:F.28 pi-Cation interactions: B:K.117 GCP.6: 26 residues within 4Å: Chain C: A.11, G.12, G.13, V.14, G.15, K.16, S.17, A.18, F.28, V.29, D.30, E.31, Y.32, P.34, T.35, A.59, G.60, Q.61, N.116, K.117, D.119, L.120, S.145, A.146, K.147 Ligands: MG.5 26 PLIP interactions: 26 interactions with chain C Hydrogen bonds: C:G.13, C:V.14, C:G.15, C:K.16, C:K.16, C:K.16, C:S.17, C:A.18, C:V.29, C:T.35, C:G.60, C:Q.61, C:N.116, C:K.117, C:K.117, C:A.146, C:K.147 Water bridges: C:S.17, C:D.33, C:T.35, C:T.35, C:Q.61 Salt bridges: C:D.119 pi-Stacking: C:F.28, C:F.28 pi-Cation interactions: C:K.117 GCP.8: 23 residues within 4Å: Chain D: A.11, G.12, G.13, V.14, G.15, K.16, S.17, A.18, F.28, D.30, D.33, P.34, T.58, G.60, Q.61, N.116, K.117, D.119, L.120, S.145, A.146, K.147 Ligands: MG.7 25 PLIP interactions: 25 interactions with chain D Hydrogen bonds: D:G.13, D:V.14, D:G.15, D:K.16, D:K.16, D:K.16, D:S.17, D:S.17, D:A.18, D:D.30, D:D.33, D:D.33, D:D.33, D:G.60, D:G.60, D:N.116, D:K.117, D:K.117, D:A.146, D:K.147 Water bridges: D:T.35 Salt bridges: D:D.119 pi-Stacking: D:F.28, D:F.28 pi-Cation interactions: D:K.117

Links

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Citation

Milburn, M.V. et al., Molecular switch for signal transduction: structural differences between active and inactive forms of protooncogenic ras proteins. Science (1990)

Release Date

1992-07-28

Peptides

C-H-RAS P21 PROTEIN CATALYTIC DOMAIN: ABCD

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

C
C

D
D

C-H-RAS P21 PROTEIN CATALYTIC DOMAIN

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