Need ref. on di- and tri-peptide runs in proteins (esp. drosophila)

[Dan Davison]

A faculty member here has a protein which consists at one point of a run
of GXGXGXGXGXGXGXGXGGGGGG where X is usually serine but occasionally
something else. (Looks like polymerase slipping to me). I am aware
that this sort of thing has been seen before, esp. in Drosophila.
If you know of a reference -- even just journal and year -- I would
appreciate hearing about it.

Thanks in advance,
dan davison
davison at uh.edu
DAVISON at UHOU (BITNET)