. 2011 May 5;7(5):e1002046. doi: 10.1371/journal.pcbi.1002046

Table 1. Intronic underrepresentation zones by TE class.

TE Class	Human U-zone for All (bp)^a	Mouse U-zone for All (bp)^a	Human U-zone for FL (bp)^b	Mouse U-zone for FL (bp)^b	Human cutoff size of FL (bp)^c	Mouse cutoff size of FL (bp)^c
SINE	100	100	100	100	>250	>100
LINE	50	100	2000	2000	>5000	>5000
LTR	2000	1000	5000	2000	>5000	>5000
DNA	50	100	2000	2000	>1000	>1000

The distributions of TEs were normalized by the overall G/C content preference of each TE class.

Underrepresentation zone based on distribution of all elements of each TE class.

Underrepresentation zone based on distribution of only ‘near full-length’ (FL) elements.

The cutoff size of full-length elements for each TE class was determined as slightly shorter than the average full-length elements as described in [1] and [2].