Protein Coding Features based on feature's gene biotype from Ensembl gene sets. All non-protein coding features have been removed. (Alignment based annotation using proteins, cDNA, RNA-seq, etc.) Features include: CDS, Selenocysteine, UTR, exon, gene, start_codon, stop_codon, transcript. Features are in GTF format. Remapped from Ensembl GRCh37 to UCSC hg19
