>d1stsd_ b.61.1.1 (D:) Streptavidin {Streptomyces avidinii} aeagitgtwynqlgstfivtagadgaltgtyesavgnaesryvltgrydsapatdgsgta lgwtvawknnyrnahsattwsgqyvggaearintqwlltsgtteanawkstlvghdtftk v