Chains and heterogens:
PDB Chain Sequences:
>1avr_ (-) qvlrgtvtdfpgfderadaetlrkamkglgtdeesiltlltsrsnaqrqeisaafktlfg rdllddlkseltgkfeklivalmkpsrlydayelkhalkgagtnekvlteiiasrtpeel raikqvyeeeygssleddvvgdtsgyyqrmlvvllqanrdpdagideaqveqdaqalfqa gelkwgtdeekfitifgtrsvshlrkvfdkymtisgfqieetidretsgnleqlllavvk sirsipaylaetlyyamkgagtddhtlirvmvsrseidlfnirkefrknfatslysmikg dtsgdykkallllcged