>4erxB (B:) SEQRES residues
mtavqlivglgnpgpeydqtrhnagalfverlahaqgvslvadrkyfglvgkfshqgkdv
rllipttymnrsgqsvaalagffriapdailvahdeldmppgvaklktggghgghnglrd
iiaqlgnqnsfhrlrlgighpghsslvsgyvlgraprseqelldtsidfalgvlpemlag
dwtramqklhsqka