>5f1s_A mol:protein length:219 polymeric Immunoglobulin Receptor
RVTTVGDLAVLEGRSVMIPCHYGPQYASYVKYWCRGSVKDLCTSLVRSDAPRGPAAAGEDKVVMFDDPVQQVFTVTMTELQKEDSGWYWCGVEVGGVWSADVTASLHINVIQGLSVVNSMVSGEEGTSVTVQCLYSQGYRQHEKRWCRSGDWSSCLVTDGEGRYEDQAVEIRDDLTKAFTVTLKGLARRDTGWYWCAAGQQQVAVYILVTPPSHHHHHH