>3vsaA (A:) observed residues (from ATOM records)
aladisgyldvldsvrgfsylenarevlrsgearclgnprsepeyvkalyvigasripvg
dgcshtleelgvfdisvpgemvfpspldffergkptplvrsrlqlpngvrvwlklewynp
fslsvkdrpaveiisrlsrrvekgslvadatssnfgvalsavarlygyrarvylpgaaee
fgkllprllgaqvivdpeapstvhllprvmkdsknegfvhvnqfyndanfeahmrgtare
ifvqsrrgglalrgvagslgtsghmsaaafylqsvdpsiravlvqpaqgdsipgirrvet
gmlwinmldisytlaevtleeameavvevarsdglvigpsggaavkalakkaaegdlepg
dyvvvvpdtgfkylslvqnale