TABLE 1.

Aggregation of M. tuberculosis H37Ra in the presence of purified native and recombinant HBHA^a

HBHA protein	Amt of HBHA that induces maximum aggregation (μg/ml)
Native HBHA	0.5
h-HBHA	2.5
N-h-HBHA	12.5
C-h-HBHA	>50
h-MPT64	>50

^aNative HBHA and His-tagged recombinant HBHA proteins were purified as described in Materials and Methods. The His-tagged recombinant mycobacterial protein h-MPT64 (28) was purified in a similar fashion and used as a control.