>4pnkB (B:) observed residues (from ATOM records)
seldqlrqeaeqlknqirdarkacadatlsqitnnidpvgriqmrtrrtlrghlakiyam
hwgtdsrllvsasqdgkliiwdsyttnkvhaiplrsswvmtcayapsgnyvacggldnic
siynlktregnvrvsrelaghtgylsccrflddnqivtssgdttcalwdietgqqtttft
ghtgdvmslslapdtrlfvsgacdasaklwdvregmcrqtftghesdinaicffpngnaf
atgsddatcrlfdlradqelmtyshdniicgitsvsfsksgrlllagyddfncnvwdalk
adragvlaghdnrvsclgvtddgmavatgswdsflkiwn