>4nt0B (B:) SEQRES residues
mrsrrvdvmdvmnrlilamdlmnrddalrvtgevreyidtvkigyplvlsegmdiiaefr
krfgcriiadfkvadipetnekicratfkagadaiivhgfpgadsvraclnvaeemgrev
flltemshpgaemfiqgaadeiarmgvdlgvknyvgpstrperlsrlreiigqdsflisp
gvgaqggdpgetlrfadaiivgrsiyladnpaaaaagiiesikdllnp