Table 2.

HPA binding to reduced and native IgA myeloma proteins in ELISA.

Myeloma protein	Reduced (Capture)	Reduced (Direct)	Native (Capture)	Native (Direct)
NA-treated
Mce	1.055a	1.175	2.407	2.719
Ham	0.196	0.375	1.017	1.434
Ste	0.101	0.398	1.050	1.972
Gou	0.689	0.602	3.326	3.771
Lat	0.182	0.294	0.754	1.604
Ber1	0.984	0.629	2.065	2.462
Sin	0.404	0.622	1.026	2.108
Kni	0.034	0.013	0.074	0.064
Fel	0.000	0.003	0.000	0.000
Ber2	0.000	0.000	0.000	0.000
Cob	0.000	0.001	0.000	0.000
Without NA
Mce	0.523	0.380	1.888	2.001
Ham	0.092	0.059	0.447	0.679
Ste	0.079	0.043	0.395	0.723
Gou	0.867	0.343	3.388	3.667
Lat	0.105	0.091	0.301	0.984
Ber1	0.341	0.089	0.803	0.720
Sin	0.383	0.251	0.740	1.643
Kni	0.080	0.020	0.000	0.029
Fel	0.000	0.004	0.003	0.003
Ber2	0.000	0.007	0.000	0.000
Cob	0.009	0.002	0.000	0.000

^aAbsorbance at 405 nm.

NA, neuraminidase