>4txjB (B:) observed residues (from ATOM records)
pivnshlseldedvfhhfgfttksfdfkekfgdvkfvcvcgssgrihnfaismaklagla
lpveniagsharfvlykvdhilfadhgmgipsalimlhevtkllhyagckdvlfirlgts
gglgvkpgtivlsdrcvntklepynelcilgkpvrrqtivdlntvnelkklsenlslecs
vvvggtiaandfyeeqgrldgsictfskeeklaflqsayehgirnmemegtaitshcylt
ghrailvcvtavnrlegdqitistdeftlfaqrpgqlvgeylkrnngiivr