Additional file 2 of A standardized nomenclature for mammalian histone genes

Additional file 2. List of human histone proteins from the Histone Sequence Database for every histone gene, the available set of transcript and coding sequence GENCODE annotations were obtained from the Ensembl 105 database. Next, only protein-coding transcripts identical between Ensembl automated annotation and HAVANA manual curation were retained. In those cases where several transcripts of one gene correspond to the same amino acid protein sequence, only one record was retained with preference given to those that match NCBI’s RefSeq annotation. For every histone gene the list includes the HGNC symbol, information about corresponding protein sequences, their length, accession numbers within NCBI and Ensembl resources, as well as a list of relevant literature references in the form of PubMed identifiers. For a few histone variant genes, the attribution to a certain histone variant class has not yet been clearly established in the literature; these are marked in the list by a question mark.