Self versus Nonself Discrimination by the Soluble Complement Regulators Factor H and FHL-1

Abstract excerpt

The plasma proteins Factor H (FH) and its alternate splice variant FH-like protein 1 (FHL-1) are the major regulators of the complement alternative pathway. The indiscriminate nature of alternative pathway activation necessitates the regulators to be host selective, but the underlying principles of selectivity remained largely elusive. By analyzing human FH and FHL-1 for protection of different host and foreign...

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