>4lriB (B:) observed residues (from ATOM records)
divmtqsplslsvtpgepasiscrssqsllhtngynyldwyvqkpgqspqlliylasnra
sgvpdrfsgsgsgtdftlkisrvetedvgvyycmqalqiprtfgqgtkveikrtvaapsv
fifppsdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstysl
sstltlskadyekhkvyacevthqglsspvtksfnrg