>1u58A (A:) observed residues (from ATOM records)
esglryaytlvvdgtantrrcfgtghvdgeafvgysnnkthgigrwvnashveeenkefv
rqckelqaeldkmqnnskvigvktvqldvgctskiekhyaydgnetecqkklteyrklvl
asavspqleverrssgreggmrlrcfardyypadleirwwkddggggalpqtskqhhdpl
psgnglyqkhidvyvdgglehvyscrvkgiatglelqivrwk