Figure 1From: The solution structure of ChaB, a putative membrane ion antiporter regulator from Escherichia coli1H-15N HSQC spectrum of ChaB at 600 MHz, pH 6.3 in 50 mM CaCl 2 . Folded resonances are indicated by asterisks. Numbering shown includes the N-terminal His-tag (residues 1–21). The native ChaB sequence starts at P22. The unassigned peak is denoted as a question mark. Folded arginine/lysine side chain resonances are indicated by SC.Back to article page