- DNA sequencing and analysis of a 67.4 kb region from the right arm of Schizosaccharomyces pombe chromosome II reveals 28 open reading frames including the genes his5, pol5, ppa2, rip1, rpb8 and skb1. Xiang, Z., Lyne, M.H., Wood, V., Rajandream, M.A., Barrell, B.G., Aves, S.J. Yeast (1999)