I think the Sasha grant was a Center grant, so these are all the collaborating groups that are part of the Center, perhaps. At least that's the way it worked when I was in grad school and my advisor had a Center grant with several other institutions each doing one part according to their expertise.

Haven't looked at all the individual awards or seen too much about what the grant was for other than AAV to T-cells to produce LRN as part of a potential HIV cure in animals (monkeys I believe).