SMTL ID : 5mla.1

Crystal structure of human RAS in complex with darpin K55

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.19 Å

Oligo State

hetero-1-1-mer

Ligands

1 x MG: MAGNESIUM ION(Non-covalent)

MG.1: 4 residues within 4Å: Chain A: S.20, T.38, D.60 Ligands: GSP.2 4 PLIP interactions: 2 interactions with chain A, 2 Ligand-Water interactions Metal complexes: A:S.20, A:T.38, H2O.1, H2O.1

1 x GSP: 5'-GUANOSINE-DIPHOSPHATE-MONOTHIOPHOSPHATE(Non-covalent)

GSP.2: 24 residues within 4Å: Chain A: A.14, V.15, G.16, V.17, G.18, K.19, S.20, A.21, F.31, V.32, D.33, P.37, T.38, T.61, A.62, G.63, N.119, K.120, D.122, L.123, S.148, A.149, K.150 Ligands: MG.1 25 PLIP interactions: 25 interactions with chain A Hydrogen bonds: A:G.16, A:V.17, A:G.18, A:K.19, A:K.19, A:S.20, A:S.20, A:A.21, A:V.32, A:T.38, A:T.38, A:G.63, A:N.119, A:K.120, A:K.120, A:A.149, A:K.150 Water bridges: A:S.20, A:D.36, A:Q.64, A:K.120 Salt bridges: A:K.19, A:D.122 pi-Stacking: A:F.31, A:F.31

2 x SO4: SULFATE ION(Non-functional Binders)

SO4.3: 3 residues within 4Å: Chain A: N.88, S.125, T.127 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:N.88, A:N.88 SO4.4: 3 residues within 4Å: Chain A: K.8 Chain B: R.121, K.154 3 PLIP interactions: 2 interactions with chain B, 1 interactions with chain A Salt bridges: B:R.121, B:K.154, A:K.8

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Guillard, S. et al., Inhibition of RAS nucleotide exchange by a DARPin: structural characterisation and effects on downstream signalling by active RAS. To Be Published

Release Date

2017-12-20

Peptides

GTPase KRas: A
darpin k55: B

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

GTPase KRas

darpin k55

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