>1y4zA (A:) observed residues (from ATOM records)
skfldrfryfkqkgetfadghgqllntnrdwedgyrqrwqhdkivrsthgvnctgscswk
iyvknglvtwetqqtdyprtrpdlpnheprgcprgasyswylysanrlkypmmrkrlmkm
wreakalhsdpveawasiiedadkaksfkqargrggfvrsswqevneliaasnvytikny
gpdrvagfspipamsmvsyasgarylsliggtclsfydwycdlppaspqtwgeqtdvpes
adwynssyiiawgsnvpqtrtpdahfftevrykgtktvavtpdyaeiaklcdlwlapkqg
tdaamalamghvmlrefhldnpsqyftdyvrrytdmpmlvmleerdgyyaagrmlraadl
vdalgqennpewktvafntngemvapngsigfrwgekgkwnleqrdgktgeetelqlsll
gsqdeiaevgfpyfggdgtehfnkvelenvllhklpvkrlqladgstalvttvydltlan
yglerglndvncatsyddvkaytpawaeqitgvsrsqiiriarefadnadkthgrsmiiv
gaglnhwyhldmnyrglinmlifcgcvgqsgggwahyvgqeklrpqtgwqplafaldwqr
parhmnstsyfynhssqwryetvtaeellspmadksrytghlidfnvraermgwlpsapq
lgtnpltiageaekagmnpvdytvkslkegsirfaaeqpengknhprnlfiwrsnllgss
gkghefmlkyllgtehgiqgkdlgqqggvkpeevdwqdnglegkldlvvtldfrlsstcl
ysdiilptatwyekddmntsdmhpfihplsaavdpaweaksdweiykaiakkfsevcvgh
lgketdivtlpiqhdsaaelaqpldvkdwkkgecdlipgktaphimvverdypatyerft
sigplmekignggkgiawntqsemdllrklnytkaegpakgqpmlntaidaaemiltlap
etngqvavkawaalseftgrdhthlalnkedekirfrdiqaqprkiissptwsgledehv
synagytnvhelipwrtlsgrqqlyqdhqwmrdfgesllvyrppidtrsvkevigqksng
nqekalnfltphqkwgihstysdnllmltlgrggpvvwlseadakdlgiadndwievfns
ngaltaravvsqrvpagmtmmyhaqerivnlpgseitqqrggihnsvtritpkpthmigg
yahlaygfnyygtvgsnrdefvvvrkmknidwldgegndqvqes