Fig. 1From: Three-dimensional models of Mycobacterium tuberculosis proteins Rv1555, Rv1554 and their docking analyses with sildenafil, tadalafil, vardenafil drugs, suggest interference with quinol binding likely to affect protein’s functionSildenafil (Viagra), tadalafil (Cialis), vardenafil (Levitra) drugs bound to M.tb Rv1555 protein. The helices are labelled and the ‘kink’ in H1 helix is indicated with an arrowBack to article page