Arroyo, fig 2C second column most left dodecamer.  Two really bright tiny peaks presumably between the N termini and the first large LUT peak (which they call glycosylation site).  Nice bright and in the exact same spot as they have been seen for other AFM images. In this case I marked the two bright spots with a dotted circle.

Be aware however that it does show up as brighter LUT peaks perhaps because they lie on the same plane as one line of the background vibration noise. I wish i could find someone who could write an algorithm specifically for dampening the brightness along those parallel lines.  I could do it in photoshop manually.