SMTL ID : 2g83.1 (1 other biounit)

Structure of activated G-alpha-i1 bound to a nucleotide-state-selective peptide: Minimal determinants for recognizing the active form of a G protein alpha subunit

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.80 Å

Oligo State

hetero-1-1-mer

Ligands

1 x ALF: TETRAFLUOROALUMINATE ION(Non-covalent)

ALF.1: 14 residues within 4Å: Chain A: A.9, G.10, E.11, K.14, S.15, R.146, K.148, T.149, V.169, G.170, G.171, Q.172 Ligands: MG.2, GDP.3 No protein-ligand interaction detected (PLIP)

1 x MG: MAGNESIUM ION(Non-covalent)

MG.2: 6 residues within 4Å: Chain A: S.15, R.146, V.147, T.149 Ligands: ALF.1, GDP.3 2 PLIP interactions: 2 interactions with chain A Metal complexes: A:S.15, A:T.149

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

GDP.3: 21 residues within 4Å: Chain A: E.11, S.12, G.13, K.14, S.15, T.16, S.119, L.143, R.144, T.145, R.146, T.149, N.237, K.238, D.240, L.241, C.293, A.294, T.295 Ligands: ALF.1, MG.2 21 PLIP interactions: 21 interactions with chain A Hydrogen bonds: A:E.11, A:S.12, A:G.13, A:K.14, A:S.15, A:T.16, A:T.16, A:S.119, A:L.143, A:R.144, A:K.238, A:K.238, A:A.294 Water bridges: A:S.15, A:D.118, A:V.169 Salt bridges: A:K.14, A:R.146, A:R.146, A:D.240 pi-Cation interactions: A:K.238

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Johnston, C.A. et al., Minimal Determinants for Binding Activated Galpha from the Structure of a Galpha(i1)-Peptide Dimer. Biochemistry (2006)

Release Date

2006-10-10

Peptides

Guanine nucleotide-binding protein G(i), alpha-1 subunit: A
KB-1753 phage display peptide: B

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
C

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

KB-1753 phage display peptide

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