Cocrystallization of engineered streptavidin with A9 oligo DNA

Dual-functional co-crystal of streptavidin and ssDNA: electrostatic assembly with positively charged peptide tags.

AGITGTWYNQLGSTFIVTAGADGALTGTYESAVGNAESRYVLTGRYDSAPATDGSGTALGWTVAWKNNYRNAHSATTWSG
QYVGGAEARINTQWLLTSGTTEANAWKSTLVGHDTFTKVKPSAASRRRRRRY

Biotin-binding protein, UNKNOWN FUNCTION

AGITGTWYNQLGSTFIVTAGADGALTGTYESAVGNAESRYVLTGRYDSAPATDGSGTALGWTVAWKNNYRNAHSATTWSG
QYVGGAEARINTQWLLTSGTTEANAWKSTLVGHDTFTKVKPSAAS