>1swg_B mol:protein length:128 CIRCULARLY PERMUTED CORE-STREPTAVIDIN E51/A46MESRYVLTGRYDSAPATDGSGTALGWTVAWKNNYRNAHSATTWSGQYVGGAEARINTQWLLTSGTTEANAWKSTLVGHDTFTKVKPSAASGGGSAEAGITGTWYNQLGSTFIVTAGADGALTGTYESA