SMTL ID : 3onw.2 (1 other biounit)

Structure of a G-alpha-i1 mutant with enhanced affinity for the RGS14 GoLoco motif.

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.38 Å

Oligo State

hetero-1-1-mer

Ligands

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

GDP.1: 20 residues within 4Å: Chain A: A.15, G.16, E.17, S.18, G.19, K.20, S.21, T.22, D.124, S.125, R.150, R.152, N.243, K.244, D.246, L.247, C.299, A.300, T.301 Chain B: R.21 26 PLIP interactions: 24 interactions with chain A, 2 interactions with chain B Hydrogen bonds: A:E.17, A:S.18, A:G.19, A:K.20, A:S.21, A:T.22, A:T.22, A:D.124, A:R.150, A:R.150, A:R.150, A:R.152, A:N.243, A:K.244, A:K.244, A:A.300, A:T.301, A:T.301 Water bridges: A:E.17, A:S.21, A:D.174 Salt bridges: A:K.20, A:D.246, B:R.21, B:R.21 pi-Cation interactions: A:K.244

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

SO4.2: 3 residues within 4Å: Chain A: Y.128, Q.146, R.150 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:Q.146 Water bridges: A:T.301 Salt bridges: A:R.150 SO4.3: 5 residues within 4Å: Chain A: L.121, A.209, R.216 Chain B: S.15, G.16 2 PLIP interactions: 1 interactions with chain B, 1 interactions with chain A Hydrogen bonds: B:G.16 Salt bridges: A:R.216

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Bosch, D.E. et al., Structural Determinants of Affinity Enhancement between GoLoco Motifs and G-Protein {alpha} Subunit Mutants. J.Biol.Chem. (2011)

Release Date

2010-11-24

Peptides

Guanine nucleotide-binding protein G(i) subunit alpha-1: A
Regulator of G-protein signaling 14: B

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
B

B
D

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

Regulator of G-protein signaling 14

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