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Lal, R.B. et al.

Identification of immunodominant epitopes in envelope glycoprotein of human T lymphotropic virus type II.

A series of synthetic peptides derived from the envelope glycoprotein of human T lymphotropic virus type II (HTLV-II) was used in an enzyme immunoassay to determine the immunodominant epitopes of envelope glycoprotein. Of the 11 synthetic peptides spanning the external glycoprotein of HTLV-II (gp52) and the 3 from the transmembrane protein (gp21), 3 peptides from gp52 (termed Env-20(85-102), Env-202(173-209), and Env-203(219-256] reacted with most of the polymerase chain reaction-confirmed HTLV-II specimens (83, 95, and 76%, respectively); all other peptides reacted minimally with these specimens. Env-202(173-209) reacted with a greater percentage (91 to 100%) of specimens from different risk groups, including intravenous drug users (n = 30), North American Indians (n = 13), Guaymi Indians from Panama (n = 22), and routine U.S. blood donors (n = 34), when compared with Env-20(85-102) (73 to 100%) or Env-203(219-256) (68 to 83%). Furthermore, Env-20(85-102) and Env-202(173-209) had some reactivity (8-25%) with sera from HTLV-I-infected individuals, whereas Env-203(219-256) reacted with 58% of HTLV-I specimens. We conclude that peptides Env-20(85-102) and Env-202(173-209) represent the type-specific immunodominant epitopes of HTLV-II external glycoprotein.[1]

References

Identification of immunodominant epitopes in envelope glycoprotein of human T lymphotropic virus type II. Lal, R.B., Rudolph, D.L., Kaplan, J.E., Hjelle, B., Levine, P.H., Coligan, J.E., Viscidi, R.P. Virology (1992) [Pubmed]

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