>1v19B (B:) SEQRES residues
mlevvtageplvalvpqepghlrgkrllevyvggaevnvavalarlgvkvgfvgrvgede
lgamveerlraegvdlthfrrapgftglylreylplgqgrvfyyrkgsagsalapgafdp
dylegvrflhlsgitpalspearafslwameeakrrgvrvsldvnyrqtlwspeeargfl
eralpgvdllflseeeaellfgrveealralsapevvlkrgakgawafvdgrrvegsafa
veavdpvgagdafaagylagavwglpveerlrlanllgasvaasrgdhegapyredlevl
lkatqtfmr