Deletion of the entire Thr-Gly region and some adjacent 3' coding region.
construct_comment: One of a series of constructs used to characterize the extent of per genomic sequences and effects of deleting the Thr-Gly repeat region of the per gene.
construct_comment: One of a series of constructs used to characterize the extent of per genomic sequences and effects of deleting the Thr-Gly repeat region of the per gene.