Figure 2.
(A) Classification scheme for mouse L1 ORF1 length polymorphism region (LPR) groups, as defined by Mears and Hutchison (2001). LPRs consists of tandem arrays of 66-bp and/or 42-bp blocks, and each begins with a 66-bp block. The 42-bp block is homologous with the 3′ portion of the 66-bp repeat. The novel GF variant has been designated LPR Group V. (B) Alignment of the ORF1 LPR repeats from the GF consensus sequence. As shown in the first line of the alignment, the 5′-most 24 bp of the 66-bp repeat has partial homology with the 42-bp repeat.
