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FHR1 is comprised of five SCRs. The last three SCRs have nearly 100% identity with SCRs 18, 19, and 20 of factor H and are shown in blue. SCRs 1 and 2 of FHR1 have modest identity with SCRs 6 and 7 of factor H, hence the slightly different colors. SRC, short consensus repeat; FHR1, factor H-related protein 1; GBM, glomerular basement membrane.
