This entry includes budding yeast Rec114 protein and its homologue, Rec7, from S. pombe. They are required for meiotic intragenic recombination but not for mitotic recombination [, ]. REC114 is one of 10 genes required for initiation of meiotic recombination in Saccharomyces cerevisiae []. Located on chromosome XIII, it is transcribed only in meiosis and has no detectable function in mitosis []. REC114 has been shown to possess an intron and is one of only three genes in yeast with 3' introns []. The 3' splice site utilised in REC114 is a very rare AAG sequence - only three other genes in yeast use this non-consensus sequence []. It appears that the intron is not essential for expression of REC114 and is not absolutely required for meiotic function. Nevertheless, it is conserved in evolution - two other species of yeast contain an intron at the same location in their REC114 genes [].