>4y42C (C:) observed residues (from ATOM records)
tqslhysspretltdtimmakirknltfeainqgtglslafvtaallgqhplpeqaarvv
aekldldedairllqtiplrgsipggvptdptiyrfyemvqiygstlkalvheqfgdgii
sainfkldikkvpdpdggeravitldgkylptkpf