1. b.147.1 BTV NS2-like ssRNA-binding domain BTV NS2-like ssRNA-binding domain sandwich; 9 strands in 2 sheets; unusual topology with 2 crossover loops 1uty d1utyb_ B:9-16,33-40,53-60,99-107,116-124 1uty d1utya_ A:9-16,33-40,53-60,101-107,116-124