>1cugA (A:) observed residues (from ATOM records)
ettrddlingnsascadvifiyargstetgnlgtlgpsiasnlesafgkdgvwiqgvgga
yratlgdnalprgtssaairemlglfqqantkcpdatliaggysqgaalaaasiedldsa
irdkiagtvlfgytknlqnrgripnypadrtkvfcktgdlvctgslivaaphlaygpdar
gpapefliekvravrgs