SMTL ID : 4g5q.4 (3 other biounits)

Structure of LGN GL4/Galphai1 complex

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.90 Å

Oligo State

hetero-1-1-mer

Ligands

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

GDP.1: 21 residues within 4Å: Chain A: A.17, G.18, E.19, S.20, G.21, K.22, S.23, T.24, D.126, S.127, R.152, R.154, N.245, K.246, D.248, L.249, C.301, A.302, T.303 Chain B: R.15, R.20 26 PLIP interactions: 4 interactions with chain B, 22 interactions with chain A Water bridges: B:R.15, A:D.176 Salt bridges: B:R.15, B:R.15, B:R.20, A:K.22, A:D.248 Hydrogen bonds: A:E.19, A:S.20, A:G.21, A:K.22, A:S.23, A:S.23, A:T.24, A:T.24, A:D.126, A:L.151, A:R.152, A:R.152, A:R.154, A:R.154, A:N.245, A:K.246, A:K.246, A:A.302 pi-Cation interactions: A:K.246

1 x CIT: CITRIC ACID(Non-functional Binders)

CIT.2: 5 residues within 4Å: Chain A: E.251, K.255, T.271, Y.272, E.273 5 PLIP interactions: 5 interactions with chain A Hydrogen bonds: A:E.251, A:Y.272 Water bridges: A:E.251, A:E.273 Salt bridges: A:K.255

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

SO4.3: 2 residues within 4Å: Chain A: D.134, R.137 2 PLIP interactions: 2 interactions with chain A Water bridges: A:R.137 Salt bridges: A:R.137 SO4.4: 5 residues within 4Å: Chain A: E.9, K.11, K.173, F.175, H.189 3 PLIP interactions: 3 interactions with chain A Salt bridges: A:K.11, A:K.173, A:H.189 SO4.5: 1 residues within 4Å: Chain A: K.104 1 PLIP interactions: 1 interactions with chain A Salt bridges: A:K.104 SO4.6: 3 residues within 4Å: Chain A: F.167, K.168, D.169 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:K.168, A:D.169 SO4.7: 2 residues within 4Å: Chain A: N.231, K.288 1 PLIP interactions: 1 interactions with chain A Salt bridges: A:K.288

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Jia, M. et al., Crystal Structures of the scaffolding protein LGN reveal the general mechanism by which GoLoco binding motifs inhibit the release of GDP from Galphai subunits in G-coupled heterotrimeric proteins. To be Published

Release Date

2012-09-05

Peptides

Guanine nucleotide-binding protein G(i) subunit alpha-1: A
G-protein-signaling modulator 2: B

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
D

B
H

Guanine nucleotide-binding protein G(i) subunit alpha-1

G-protein-signaling modulator 2

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