>4dcxB (B:) observed residues (from ATOM records)
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tftlrddvkfsngepfdaeaaaenfravldnrqrhawlelanqivdvkalsktelqitlk
sayypflqelalprpfrfiapsqfknhetmngikapigtgpwilqesklnqydvfvrnen
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glkpsqydpqkakallekagwtlpagkdirekngqplrielsfigtdalsksmaeiiqad
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