>1b4aE (E:) observed residues (from ATOM records)
gqrhikireiimsndietqdelvdrlreagfnvtqatvsrdikemqlvkvpmangrykys
lpsdqrfnplqklkralvdvfikldgtgnllvlrtlpgnahaigvlldnldwdeivgtic
gddtcliicrtpkdakkvsnqllsml