Green fluorescent protein

[Alan Hinds]

I am posting this for a friend:

I am interested in putting the green fluorescent protein from the
bioluminescent jellyfish Aequorea victoria into adenovirus for
infection of mammalian cells.  I have heard that the stability of this
protein in mammalian cells has been somewhat of a problem.  Has
anyone had any experience with this and/or constructed more
stable expression vectors for this protein in mammalian cells?
Thanks in advance for any responses.