>2RVN_1|Chain A|Chromobox protein homolog 5|Mus musculus (10090) GSHMGKKTKRTADSSSSEDEEEYVVEKVLDRRMVKGQVEYLLKWKGFSEEHNTWEPEKNLDCPELISEFMKKYKKMKEGENNK >2RVN_2|Chain B|18-mer peptide of Histone H3|Mus musculus (10090) ARTKQTARKSTGGKAPRY