SMTL ID : 2xtz.1 (2 other biounits)

Crystal structure of the G alpha protein AtGPA1 from Arabidopsis thaliana

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.34 Å

Oligo State

monomer

Ligands

1 x MG: MAGNESIUM ION(Non-covalent)

MG.1: 4 residues within 4Å: Chain A: S.23, T.164, D.189 Ligands: GSP.2 4 PLIP interactions: 2 interactions with chain A, 2 Ligand-Water interactions Metal complexes: A:S.23, A:T.164, H2O.2, H2O.2

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

GSP.2: 24 residues within 4Å: Chain A: A.17, G.18, E.19, S.20, G.21, K.22, S.23, T.24, C.134, L.158, Y.159, R.161, R.163, T.164, G.191, G.192, N.258, K.259, D.261, I.262, T.325, A.326, L.327 Ligands: MG.1 25 PLIP interactions: 25 interactions with chain A Hydrogen bonds: A:A.17, A:E.19, A:S.20, A:G.21, A:K.22, A:K.22, A:S.23, A:T.24, A:T.24, A:L.158, A:V.162, A:T.164, A:G.192, A:Q.193, A:N.258, A:K.259, A:K.259, A:A.326 Water bridges: A:S.23, A:S.23, A:S.23, A:D.189 Salt bridges: A:K.22, A:D.261 pi-Cation interactions: A:K.259

1 x CL: CHLORIDE ION(Non-functional Binders)

CL.3: 1 residues within 4Å: Chain A: K.320 Ligand excluded by PLIP

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

SO4.4: 2 residues within 4Å: Chain A: V.162, R.163 7 PLIP interactions: 7 interactions with chain A Hydrogen bonds: A:Q.55, A:R.163 Water bridges: A:Q.55, A:Q.55, A:R.161, A:R.161 Salt bridges: A:R.163

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Jones, J.C. et al., The Crystal Structure of a Self-Activating G Protein Alpha Subunit Reveals its Distinct Mechanism of Signal Initiation. Sci.Signal. (2011)

Release Date

2011-02-16

Peptides

GUANINE NUCLEOTIDE-BINDING PROTEIN ALPHA-1 SUBUNIT: A

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

GUANINE NUCLEOTIDE-BINDING PROTEIN ALPHA-1 SUBUNIT

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