>4l9vA (A:) observed residues (from ATOM records)
meftysylfrmishemkqkadqkleqlditneqghtlgylyahqqdgltqndiakalqrt
gptvsnllrnlerkkliyryvdaqdtrrkniglttsgiklveaftsifdemeqtlvsqls
eeeneqmkanltkmlsslq