>3q89B (B:) observed residues (from ATOM records)
mertflmikpdavqrnligevisrierkglklvggklmqvpmelaethygehqgkpfynd
lisfitsapvfamvvegedavnvsrhiigstnpseaspgsirgdlgltvgrniihgsdsl
esaereinlwfneneitsyasprdawlye