FDRs	First-degree relatives
SLE	Systemic Lupus Erythematosus
PLA2	Phospholipase A2
NOBA	4-nitro-3-octanoyloxy-benzoic acid
FH	Factor H
C3	Complement component 3
CLR	collagen-like region
gC1q	globular head domains of C1q
ghA	globular head fragment A
ghB	globular head fragment B
ghC	globular head fragment C
ELISA	Enzyme-Linked Immunosorbent Assay
TPBS	Phosphate-buffered saline with 0.05% Tween-20
PBS	Phosphate-buffered saline
AP	Alkaline Phosphatase
CB	Carbonate buffer
EDTA	Ethylenediaminetetraacetic acid
Na2HPO4	Sodium phosphate dibasic
(NH4)2SO4	Ammonium sulfate
NaH2PO4	Sodium phosphate monobasic
KH2PO4	Potassium dihydrogen phosphate
NaCl	Sodium chloride
MgSO4	magnesium sulfate
HCl	Hydrochloric Acid
Tris-HCl	Tris(hydroxymethyl)aminomethane with hydrochloric acid
NP-40	Nonidet P-40
TY	Yeast Extract Tryptone medium
LB	Luria–Bertani medium
MBP	maltose-binding protein
E. coli	Escherichia coli
IPTG	Isopropyl β-d-1-thiogalactopyranoside
PES	polyethersulfone membrane
pNPP	para-Nitrophenylphosphate
SD	standard deviation
SDS-PAGE	Sodium Dodecyl Sulfate Polyacrylamide Gel Electrophoresis