>1xu7D (D:) observed residues (from ATOM records)
qplneefrpemlqgkkvivtgaskgigremayhlakmgahvvvtarsketlqkvvshcle
lgaasahyiagtmedmtfaeqfvaqagklmggldmlilnhitntslnlfhddihhvrksm
evnflsyvvltvaalpmlkqsngsivvvsslagkvaypmvaaysaskfaldgffssirke
ysvsrvnvsitlcvlglidtetamkavsgivhmqaapkeecaleiikggalrqeevyyds
slwttllirnpsrkileflys