>4nrtA (A:) observed residues (from ATOM records)
gtycgapilgpgsapklstktkfwrssttplppgtyepaylggkdprvkggpslqqvmrd
qlkpfteprgkppkpsvleaakktiinvleqtidppekwsftqacasldkttssghphhm
rkndcwngesftgkladqaskanlmfeggknmtpvytgalkdelvktdkiygkikkrllw
gsdlatmircarafgglmdelkahcvtlpirvgmnmnedgpiiferhsrykyhydadysr
wdstqqravlaaaleimvkfssephlaqvvaedllspsvvdvgdfkisineglpsgvpct
sqwnsiahwlltlcalsevtnlspdiiqanslfsfygddeivstdikldpekltaklkey
glkptrpdktegplvisedlngltflrrtvtrdpagwfgkleqssilrqmywtrgpnhed
psetmiphsqrpiqlmsllgeaalhgpafyskisklviaelkeggmdfyvprqepmfrwm
rfsdlstwegdrnlapsfvn