>2r3vB (B:) observed residues (from ATOM records)
lsevllvsapgkvilhgehavvhgkvalavslnlrtflrlqphsngkvdlslpnigikra
wdvarlqsldtsfttptseqveklkevaglpddcavterlavlaflylylsicrkqralp
sldivvwselppgaglgssaaysvclaaalltvceeipnplkdgdcvnrwtkedlelink
wafqgermihgnpsgvdnavstwggalryhqgkisslkrspalqilltntkvprntralv
agvrnrllkfpeivaplltsidaislecervlgemgeapapeqylvleelidmnqhhlna
lgvghasldqlcqvtrarglhskltgaggggcgitllkpgleqpeveatkqaltscgfdc
letsigapgvsihsatsldsrvqqaldg