Binding of synthetic, alanine-containing peptide variants of the ribosomal stalk peptide SDDDMGFGLFD to the A₁ chain of SLT-1 as measured by surface plasmon resonance.

Dissociation constants (Kd) were calculated from curves relating changes in relative surface plasmon resonance signal observed as a function of SLT-1 A1 concentration (Figure 2). Each Kd value was derived from an average of three experiments. A Kd value of ≥50 µM was assigned to peptides displaying no measurable binding to the A1 chain of SLT-1.