In vivo detection of tag-eGFP constructs. Rats were stereotactically injected in the striatum with lentiviral vectors encoding the tag-eGFP fusion protein. The overexpressed protein (indicated on the left) was detected in adjacent sections with either the anti-eGFP antibody or the anti-tag antibody as indicated. Antibody dilutions used are given in table 2. Scale bar: 1 mm.