>4pcaA (A:) observed residues (from ATOM records)
hhhmrnvslskqdeylnklfavdtegalkahktapselrmaqlgtvegqmlqllirmagi
hsivevgtcvgfsaicmahalpskghiytiekdyenvvtanqnivnckledkitvlhgea
laqlntlkemapfdmifidankssylaylnwakmyirkgglivadntflfgsvfdehpte
kvssnahasmrafndelankekylstiiptsegmmvsiklt