obsolete abnormal serum amyloid protein physiology MP:0002486 MP:0010214 MPheno.ontology OBSOLETE. any functional anomaly in an acute-phase reaction protein that is a precursor to amyloid A protein; it is present in very high levels during acute inflammatory episodes, and is present in low concentrations in normal sera, but is found at higher concentrations in sera of older persons and in patients with amyloidosis abnormal SAA protein physiology abnormal Serum Amyloid A Protein physiology serum amyloid protein dysfunction true