SMTL ID : 9b4t.1

Crystal structure of the MRAS-p110alpha complex

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.75 Å

Oligo State

hetero-1-1-mer

Ligands

1 x 5H5: (2S)-2-({2-[1-(propan-2-yl)-1H-1,2,4-triazol-5-yl]-5,6-dihydroimidazo[1,2-d][1,4]benzoxazepin-9-yl}oxy)propanamide(Non-covalent)

5H5.1: 14 residues within 4Å: Chain A: S.671, W.677, K.699, Y.733, I.745, E.746, V.748, S.751, H.752, Q.756, M.819, F.827, I.829, D.830 7 PLIP interactions: 7 interactions with chain A Hydrophobic interactions: A:W.677, A:W.677 Hydrogen bonds: A:K.699, A:Y.733, A:V.748, A:S.751, A:Q.756

1 x GNP: PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER(Non-covalent)

GNP.2: 27 residues within 4Å: Chain A: R.127 Chain B: D.22, G.23, G.24, V.25, G.26, K.27, S.28, A.29, F.39, V.40, P.41, D.42, D.44, P.45, T.46, T.69, A.70, G.71, N.127, K.128, D.130, L.131, S.157, A.158, K.159 Ligands: MG.3 22 PLIP interactions: 1 interactions with chain A, 21 interactions with chain B Salt bridges: A:R.127, B:D.130 Hydrogen bonds: B:G.24, B:V.25, B:G.26, B:K.27, B:K.27, B:K.27, B:S.28, B:A.29, B:V.40, B:T.46, B:T.46, B:A.70, B:G.71, B:N.127, B:K.128, B:K.128, B:A.158, B:K.159 pi-Stacking: B:F.39, B:F.39

1 x MG: MAGNESIUM ION(Non-covalent)

MG.3: 5 residues within 4Å: Chain B: S.28, T.46, D.68, T.69 Ligands: GNP.2 2 PLIP interactions: 2 interactions with chain B Metal complexes: B:S.28, B:T.46

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Czyzyk, D. et al., Structural insights into isoform-specific RAS-PI3K alpha interactions and the role of RAS in PI3K alpha activation. Nat Commun (2025)

Release Date

2025-01-22

Peptides

Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform: A
Ras-related protein M-Ras: B

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform

Ras-related protein M-Ras

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