>1z75A (A:) observed residues (from ATOM records)
rtrvlilgvngfignhlterllredhyevygldigsdaisrflnhphfhfvegdisihse
wieyhvkkcdvvlplvaiatpieytrnplrvfeldfeenlriirycvkyrkriifpstse
vygmcsdkyfdedhsnlivgpvnkprwiysvskqlldrviwaygekeglqftlfrpfnwm
gprldnlnaarigssraitqlilnlvegspiklidggkqkrcftdirdgiealyriiena
gnrcdgeiinignpeneasieelgemllasfekhplrhhfppfagfrvvesqdvehmkps
irnahrcldwepkidmqetidetldfflrtvdlt