It was good seeing you and hearing about your work with the neuroblastoma line at the NRP Conference. John Minna expressed
an interest in learning about our techniques for identifying cell line specific chromosomes utilizing heterochromatin staining
techniques. Mr McMorris has sent to him a preprint of an article in press on this subject by Ruddle & Chen. We have
also sent him our protocol for visualization of phosphoglucomutase electrophoretic differences between Neuro and L-strain
As you know, Art McMorris in our laboratory has some hybrid cell lines between neuro and mouse L cell lines. We are particularly
interested in testing these hybrid clones for differentiated functions - especially neuro associated enzymes. It would be
a great help to us if we could obtain your protocols for tyrosine hydroxylase, choline acetylase, and glutamate decarboxylase.
If it is too much trouble to send these, I can stop by possibly next Thursday and pick them up.