Structure of full-length amyloidogenic immunoglobulin light chain H9 in complex with 3-(2-(4-(3-ethyl-3-phenylpyrrolidin-1-yl)-6-methyl-2-oxopyridin-1(2H)-yl)ethyl)-8-(imidazo[1,5-a]pyrazin-8-yl)-1,3,8-triazaspiro[4.5]decan-2-one; X-ray diffraction 1.70Å