/usr/share/doc/readseq/tests/nucleic.std is in readseq 1-12.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 | > nucleic/amino test
ABCDEFGHIKLMNPQRSTVWXYZACGTU_.-?<>{}[]()!@#$%^&=+;:'|`~"\
ABCDEFGHIKLMNPQRSTVWXYZACGTU_.-?<>{}[]()!@#$%^&=+;:'|`~"\
ABCDEFGHIKLMNPQRSTVWXYZACGTU_.-?<>{}[]()!@#$%^&=+;:'|`~"\
ABCDEFGHIKLMNPQRSTVWXYZACGTU_.-?<>{}[]()!@#$%^&=+;:'|`~"\
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