Genes for Chlorophyll a/b Binding Protein - Examples of the transfer of Cab gene from pea, wheat and Nicotiana plumbaginifolia are listed. In this case it was shown that a 247 bp sequence for pea CabAB80 (-347 to -100) and a 268 bp sequence (-357 to -89) for wheat Cab-I, when separately fused with heterologous T AT A sequence fused to neomycin phosphotransferase (NPT II) coding sequence, conferred on this coding sequence a light responsive expression.

This regulatory sequence when present caused induction of expression of NPT II by red light and the expression could be reversed by a flash of far red light as observed in phytochrome mediated expression.

In another experiment, negative elements suppressing expression were also identified, when Cab-E gene of Nicotiana plumbaginifolia was studied in a similar manner in transgenic plants.