Figure 4
From: ChIA-PET tool for comprehensive chromatin interaction analysis with paired-end tag sequencing
![Figure 4](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fgb-2010-11-2-r22/MediaObjects/13059_2009_Article_2315_Fig4_HTML.jpg)
Span distribution of intra-chromosomal PETs and the cutoff between self-ligation PETs and inter-ligation PETs. (a) The distribution of the intra-chromosomal PET genomic spans. (b) The log-log plot of interaction frequencies against PET span, and the cutoff between self-ligation PETs and inter-ligation PETs. (c) Agarose gel of chromatin DNA fragments prepared for ChIA-PET analysis. Selected DNA sizes are marked.