. 2017 May 8;45(12):7416–7431. doi: 10.1093/nar/gkx375

Table 2. Introns retained in lsm8-1 mutants specifically under cold (4°C) or high salt (NaCl) conditions that generate transcripts with NMD features.

Environmental condition	Intron type	PTC^a	3΄UTR > 350nt^b	SC→intron > 55nt^c	5΄uORF^d	uORF overlap^e	Genes^f (%)	Non-NMD genes^g (%)
4°C	Constitutive	283	4	2	8	2	344 (79.8)	87 (20.2)
	Alternative	85	2	0	0	0
NaCl	Constitutive	955	12	11	18	6	1009 (83.9)	194 (16.1)
	Alternative	145	4	1	3	2

^aPremature termination codon (PTC) and a 3΄UTR longer than 350nt.

^b3΄UTR longer than 350nt.

^cMore than 55 nt between stop codon (SC) and a downstream intron.

^dUpstream open reading frame (uORF) longer than 35 amino acids.

^euORF overlapping with the start codon of the main ORF.

^fTotal number of genes containing at least one retained intron causing NMD features.

^gTotal number of genes containing retained introns that do not generate NMD features.