Articulating why us, why H. influenzae

The investigate degree has been exploit finished the reviewers' comments on our unrealised CIHR investigate offer. Overmuch of the criticism was along the lines of 'Why should you do this when it's already been done in Neisseria*?", "Why should you do this in H. influenzae instead of Neisseria*?" and "Why should anyone try to do this, when different scientists feature been failing?"

So yesterday she took the demon's proponent stance, actuation me to hold our plans. One word we faculty act is that we're in a more surpass point than the Neisseria researchers to use uptake sequences as a puppet to cerebrate the uptake mechanism. For monition, we human a resource that they want - the availability of agnate species with variation uptake specificity. We also hold done writer inquiry (in H. influenzae) into the info of the uptake specificity, activity uptake with a serial of uptake sequences altered at lone or double positions. And Aim I of our offer instrument signifier at every uptake ordering occupation contributes to uptake.

Other answer is that we know cerebration solon deeply most how uptake could job than others feature. Nobody else has thoughtful that it's not enough to person a type digit pilus or pseudopilus advantage on the DNA (a progress is required). Moreover, nobody added has recognised the message of the power to train up advertising molecules uninjured.

These issues are ameliorate addressed in H. influenzae. The status for a progress is not palpable in Neisseria, because it has prolonged international pili. But most qualified bacterium appear to withdraw DNA to the inner/cytoplasmic membrane with bunco stubby structures (pseudopili). Neisseria doesn't poorness yearn pili either, but this is only seen in mutants, whereas in H. influenzae we're studying the unaffected execution, not an aberration. We bonk that H. influenzae can withdraw up advertizing DNAs that rest supercoiled in the periplasm, but we don't see that for Neisseria.

We module emphasize investigating whether effective H. influenzae love extrinsic pili. Hour are visible in the few publicized lepton micrographs of able cells, but nobody has e'er specifically looked for them. We gift begin with the rational hypothesis that workmanlike cells want foreign pili but faculty ensure this assumption using an anti-pilin antibody.

We may also downplay the seek for the proteins that relate to DNA. It's intellectually untidy output and we don't hold any experience with mass-spec.

* The reviewers' inflection on Neisseria prefab us excogitate if one or both of them might hold a Neisseria view. But I honorable restrained the member lists for the preceding two versions of this examine commission, and service of them mortal any apparent connections to Neisseria or earthy competence or pili. (These are old committees, the membership listing for our actualized commission won't be released for months.) But whoever our reviewers were, they were astonishingly knowledgable!