>2b4vA (A:) observed residues (from ATOM records)
npspdhyavwgkaimaennrrvgpehmfrtairaqqqlqgladkwtpdakvyccgsmvty
gqmergsdldlacmfddpypshevqakrtdklrtvikryvphylrnnllglteartpvvk
lrfandekvararytplseeedrkartalldvrnqcvgdndveyiaekmgrdnvegirvd
rttygcriaiqctskeqmieaigffpdgkimtrgmredytrdvldvrfvpemfmyrwdis
fvgygvknsylirhylhngpvaarhtamavkawgkatngamltsyavtvmfiyyllvtrq
vlwvdpwslphpahlprypdfsplydcdptelgrllhgffifyahhfdyerevvslnrnr
rsyrsdigwnfpqnkkgtfsynfciedpyedvgtgglnlvrhlhpakfqlvkqeflraaq
cmerflptnapeksilg