>3zxiA (A:) observed residues (from ATOM records)
gllaaqkarglfkdffppqtiycgfdptadslhvghllallglfhlqraghnvialvgga
tarlgdpsgrtkerealetervranaralrlglealaanhqqlftdgrswgsftvldnsa
wyqkqhlvdflaavgghfrmgtllsrqsvqlrlkspegmslaeffyqvlqaydfyylfqr
ygcrvqlggsdqlgnimsgyefinkltgedvfgitvplitavwlnrdktspfelyqffvr
qpddsverylklftflplpeidhimqlhvkeperrgpqkrlaaevtklvhgregldsakr
ctqaly