Appeal No. 1999-1367 Application 08/453,998 origin and a DNA-binding portion of yeast origin (page 6, lines 11-16). Therefore, we read the scope of (i)(b) to mean variants which bind both the natural ligand and the natural response element. Construction of part (i)(a) follows. The response element is a natural ligand responsive element, or a variant which retains the function of a natural ligand responsive element. If a variant, the variant must be a palindromic sequence or a repetition of a palindromic sequence, and the variant “retains the function of a natural ligand responsive element activating sequence in” a specified test. Since a natural ligand responsive element functions by binding with the natural receptor, we read this part of the claim as meaning variants which bind the same receptor as the natural sequence. We note that the state of the art includes knowledge of methods to test for the functionality of variations from the sequence of a natural ligand responsive element. See for example the Martinez publication cited by the examiner. Martinez also indicates that there was knowledge in the art of the responsive elements for a number of different steroids, recognition of the structure of a consensus sequence in the natural structure of glucocorticoid-responsive elements, and some knowledge of the sequence structure necessary for the specificity of the response element. The examiner’s statement of the rejection is devoid of analysis of the state of the prior art. Although the “variants” recited in the claim are defined using functional language, there is nothing inherently wrong with functional language. Persons of ordinary skill of the art had knowledge of the structure of 8Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 NextLast modified: November 3, 2007