(i) a protein or lipoprotein fusion partner or (ii) an entire HIV Nef protein or Nef with a C-terminal histidine tail, or Nef which has undergone deletion, addition or substitution of one amino acid; or
(b) an entire HIV Nef protein or Nef with a C-terminal histidine tail, or Nef which has undergone deletion, addition or substitution of one amino acid, linked to either (i) a protein or lipoprotein fusion partner or (ii) an entire HIV Tat protein or Tat with a C-terminal histidine tail, or a mutated Tat which has undergone deletion, addition or substitution of one amino acid, or a mutated Tat as defined by SEQ ID NO.23; or
(c) an entire HIV Nef protein or Nef with a C-terminal histidine tail, or Net which has undergone deletion, addition or substitution of one amino acid, linked to an entire HIV Tat protein or Tat with a C-terminal histidine tail, or a mutated Tat which as undergone deletion, addition or substitution of one amino acid, or a mutated Tat as defined by SEQ ID NO.23, and a protein or lipoprotein fusion partner, in admixture with a pharmaceutically acceptable excipient.
[57] Optical device for a system for the presentation of collimated images through the pupil of the eye (3) of a user comprising an imager (20), an off-axis concave mirror (1) and a Mangin mirror (21), the path of the ray passing through a centre of the pupil of the eye and the centre of the imager forming a broken-line optical axis (31, 32), wherein the said concave mirror is inclined with respect to a first part of the optical axis between the said centre of the pupil and the said concave mirror, and in that the said Mangin mirror is inclined on a second part of the optical axis corresponding to the reflection of the first part of the optical axis on the concave mirror and comprises a first reflecting surface (23) and a layer of refracting material (27), defining a second refracting surface, the said reflecting surface allowing the correction of the distortion of the image presented to the user and due to the off-axis concave mirror, and the optical thickness of the layer between the two surfaces being variable over the surface of the mirror in such a way as to compensate for the degradation in the resolution introduced by the said reflecting surface.