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Displaying record number 59264

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HXB2 Location	Gag(42-52) p17(42-52) DNA(913..945)	Gag Epitope Map
Author Location	p17
Epitope	DRFALNPSLLE	Epitope Alignment
Subtype	A
Species (MHC/HLA)	human
Immunogen	vaccine
Experimental methods	CD8 T-cell Elispot - IFNγ, Intracellular cytokine staining, Other
Keywords	vaccine-induced immune responses, variant cross-reactivity, optimal epitope

Vaccine Details

Notes

• Immunodominant responses of 25 uninfected, healthy subjects to highly conserved regions in HIV-1 were induced against an Ad35 vaccine containing a subtype A fusion protein of Gag-RT-Int-Nef-Env. Virus inhibition assay (VIA) confirmed cross-reactivity to 7 other HIV-1 isolates including subtype B (IIIB, CH77, CH106, ELI), subtype A (U455), and subtype C (97ZA012, 247FV2). CTL responses were to a median of 4 epitopes per vaccine, directed mostly against p17. Peptide mapping and patient HLA were used to define optimal epitopes.
• 5/12 vaccinee subjects responding to Gag recognized peptides containing epitope DRFALNPSLLE.

References

Kopycinski2014 Jakub Kopycinski, Peter Hayes, Ambreen Ashraf, Hannah Cheeseman, Francesco Lala, Justyna Czyzewska-Khan, Aggeliki Spentzou, Dilbinder K. Gill, Michael C. Keefer, Jean-Louis Excler, Patricia Fast, Josephine Cox, and Jill Gilmour. Broad HIV Epitope Specificity and Viral Inhibition Induced by Multigenic HIV-1 Adenovirus Subtype 35 Vector Vaccine in Healthy Uninfected Adults. PLoS One, 9(3):e90378, 2014. PubMed ID: 24609066. Show all entries for this paper.