Structure of the N-terminal domain of Euprosthenops australis dragline silk suggests that conversion of spidroin dope to spider silk involves a conserved asymmetric dimer intermediate.

Jiang, W., Askarieh, G., Shkumatov, A., Hedhammar, M., Knight, S. D.
(2019) Acta Crystallographica, 75 (Pt 7): 618-627
https://doi.org/10.1107/S2059798319007253