Gene prediction by the NCBI pipeline "Gnomon." The Gnomon pipeline is a combination of an ab initio method that is an extended version of GENSCAN and sequence homology. Transcripts and protein sequences are compared with a genome by BLAST, and approximate positions are determined. Precise global sequence alignments of transcripts and proteins are created by Splign and ProSplign, respectively. Partial alignments were concatenated by Chainer. See also the following page: