>2zl2B (B:) observed residues (from ATOM records)
diysrllkdrivllsgeindsvassivaqllfleaedpekdiglyinspggvitsglsiy
dtmnfirpdvsticigqaasmgafllscgakgkrfslphsrimihqplggaqgqasdiei
isneilrlkglmnsilaqnsgqsleqiakdtdrdfymsakeakeyglidkvlq