This family contains the N terminal region of several LUC7 protein homologues and only contains eukaryotic proteins. LUC7 has been shown to be a U1 snRNA associated protein [1] with a role in splice site recognition [2]. The family also contains human and mouse LUC7 like (LUC7L) proteins [3] and human cisplatin resistance-associated overexpressed protein (CROP) [4].

1: Composition and functional characterization of the yeast spliceosomal penta-snRNP. Stevens SW, Ryan DE, Ge HY, Moore RE, Young MK, Lee TD, Abelson J; Mol Cell 2002;9:31-44. PMID:11804584

2: Luc7p, a novel yeast U1 snRNP protein with a role in 5' splice site recognition. Fortes P, Bilbao-Cortes D, Fornerod M, Rigaut G, Raymond W, Seraphin B, Mattaj IW; Genes Dev 1999;13:2425-2438. PMID:10500099

3: Characterization of a widely expressed gene (LUC7-LIKE; LUC7L) defining the centromeric boundary of the human alpha-globin domain. Tufarelli C, Frischauf AM, Hardison R, Flint J, Higgs DR; Genomics 2001;71:307-314. PMID:11170747

4: CROP/Luc7A, a novel serine/arginine-rich nuclear protein, isolated from cisplatin-resistant cell line. Nishii Y, Morishima M, Kakehi Y, Umehara K, Kioka N, Terano Y, Amachi T, Ueda K; FEBS Lett 2000;465:153-156. PMID:10631324