Mammalian Exon Size: Upper Limit

Brian Hjelle bhjelle at
Mon Jun 8 08:42:52 EST 1992

I am posting the following for a friend. His lab has sequenced
an internal exon (not a 3' exon) of a new zinc finger gene and
encountered open reading frame thru 700 bp of sequence, still
open at the end of the sequenced region. He is concerned that
this ORF is too large, indicating that he actually might have
an (intronless) pseudogene. 

Does anyone know how large the largest mammalian (internal)
exons are? Any comments would be appreciated.


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