>2L12_1|Chain A|Chromobox homolog 7|Homo sapiens (9606)
GEQVFAVESIRKKRVRKGKVEYLVKWKGWPPKYSTWEPEEHILDPRLVMAYEEKEE
>2L12_2|Chain B|Histone H3|Xenopus laevis (8355)
ARTKQTARKSTGGKA