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. 2001 Apr;14(2):336–363. doi: 10.1128/CMR.14.2.336-363.2001

TABLE 5.

Adhesins of nontypeable Haemophilus influenzae

Adhesin Approx. molecular mass (kDa) % of strainsa References
Pili 27 ∼33 109, 110, 195, 322, 323
HMW1 and HMW2 125 70–80 20, 21, 24, 230, 304
Hia (H. influenzae adhesin) 115 20–30 25
Hap (Haemophilus adhesin and penetration) 155 (110)b 100 302
OMP P5 (fimbrin) 35 100 231, 284
OapA (opacity-associated protein A) 47 100 246, 341
a

Percentage of strains which are capable of expressing the adhesin. 

b

The gene product is 155 kDa, and the processed protein is 110 kDa.