ISDA

Entry Detail

PDB ID:

1ZDM

Keywords:

SIGNALING PROTEIN

Title:

Crystal Structure of Activated CheY Bound to Xe

Biological Source:

Source Organism:

Escherichia coli

Host Organism:

Escherichia coli

PDB Version:

Deposition Date:

2005-04-14

Release Date:

2005-04-26

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.40 Å

R-Value Free:

0.26

R-Value Work:

0.22

R-Value Observed:

0.22

Space Group:

P 21 21 21

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:Chemotaxis protein cheY
Chain IDs:A, B
Chain Length:129
Number of Molecules:2
Biological Source:Escherichia coli

UniProt ID:P0AE67 Pfam ID:PF00072

Modified Residue

Compound ID	Chain ID	Parent Comp ID	Details	2D Image
BFD	A	ASP	ASPARTATE BERYLLIUM TRIFLUORIDE

Ligand Molecules

Primary Citation

Distinguishing multiple chemotaxis Y protein conformations with laser-polarized 129Xe NMR.

Lowery, T.J, Doucleff, M, Ruiz, E.J, Rubin, S.M, Pines, A, Wemmer, D.E, Lee, S.Y, Cho, H.S, Pelton, J.G, Yan, D, Berry, E.A, Wemmer, D.E, Cho, H.S, Lee, S.Y, Yan, D, Pan, X, Parkinson, J.S, Kustu, S, Wemmer, D.E, Pelton, J.G, Lee, S.Y, Cho, H.S, Pelton, J.G, Yan, D, Henderson, R.K, King, D.S, Huang, L, Kustu, S, Berry, E.A, Wemmer, D.E.Show

Protein Sci. 14 848 855 (2005)

PMID: 15741343 DOI: 10.1110/ps.041231005

Abstact

The chemical shift of the (129)Xe NMR signal has been shown to be extremely sensitive to the local environment around the atom and has been used to follow processes such as ligand binding by bacterial periplasmic binding proteins. Here we show that the (129)Xe shift can sense more subtle changes: magnesium binding, BeF(3)(-) activation, and peptide binding by the Escherichia coli chemotaxis Y protein. (1)H-(15)N correlation spectroscopy and X-ray crystallography were used to identify two xenon-binding cavities in CheY that are primarily responsible for the shift changes. One site is near the active site, and the other is near the peptide binding site.

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Disease

Primary Citation of related structures