>3npcB (B:) observed residues (from ATOM records)
nqfysvevadstftvlkryqqlkpigsgaqgivcaafdtvlginvavkklsrpfqnqtha
krayrelvllkcvnhkniisllnvftpqktleefqdvylvmelmdanlcqvihmeldher
msyllyqmlcgikhlhsagiihrdlkpsnivvksdctlkildfglartactnfmmtpyvv
tryyrapevilgmgyaanvdiwsvgcimgelvkgcvifqgtdhidqwnkvieqlgtpsae
fmaalqptvrnyvenrpkypgikfeelfpdwifpseserdkiktsqardllskmlvidpd
krisvdealrhpyitvwydpaeaeapppqiydaqleerehaieewkeliykevmdw