>3a4jA (A:) observed residues (from ATOM records)
gdlintvrgpipvseagftlthehicgssagflrawpeffgsrkalaekavrglrharaa
gvqtivdvstfdigrdvrllaevsraadvhivaatglwfdpplsmrmrsveeltqfflre
iqhgiedtgiragiikvattgkatpfqelvlraaaraslatgvpvtthtsasqrggeqqa
aifeseglspsrvcighsddtddlsyltglaargylvgldrmpysaiglegdasalalfg
nrswqtrallikalidrgykdrilvshdwlfgfssyvtnimdvmdrinpdgmafvplrvi
pflrekgvppetlagvtvanparflspt