>2IZL_1|Chains A[auth B], B[auth D]|STREPTAVIDIN|Streptomyces avidinii (1895) AEAGITGTWYNQLGSTFIVTAGADGALTGTYESAVGNAESRYVLTGRYDSAPATDGSGTALGWTVAWKNNYRNAHSATTWSGQYVGGAEARINTQWLLTSGTTEANAWKSTLVGHDTFTKVKP