>1rq2B (B:) observed residues (from ATOM records)
lavikvvgiggggvnavnrmieqglkgvefiaintdaqallmsdadvkldvgadpevgrk
aaedakdeieellrgadmvfvtagegggtgtggapvvasiarklgaltvgvvtrpfsfeg
krrsnqaengiaalrescdtlivipndrllqmgvslmdafrsadevllngvqgitdlitt
pglinvdfadvkgimsgagtalmgigsargegrslkaaeiainsplleasmegaqgvlms
iaggsdlglfeineaaslvqdaahpdaniifgtviddslgdevrvtviaagfd