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Updated: Oct 7, 2026

Rapid Generation of Amyloid from Native Proteins In vitro
Published on: December 6, 2013
Amyloid fibril protein AA in Papua New Guinean amyloidosis
Abstract:
In this study of protein composition of amyloid fibrils isolated from eight patients representative of the spectrum of amyloidosis found in Papua New Guinea has been investigated. All fibril preparations, including three from patients with amyloidosis secondary to lepromatous leprosy and one from an unusual juvenile case of primary amyloidosis, contained the non-immunogobulin amyloid protein, protein AA. However, only 44% of thirty-six amyloid patients had detectable levels of the protein AA-related serum component, protein SAA. Alkali-degraded material from each of the fibril preparations failed to react in double immunodiffusion test with antiserum to the amyloid-related light chain VgammaV, but evidence was found for this immunoglobulin light chain-specificity in the serum of one patient.
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