The amyloid precursor-like protein 2 and the adenoviral E3/19K protein both bind to a conformational site on H-2Kd and regulate H-2Kd expression

Chantey R. Morris, Jason L. Petersen, Shanna E. Vargas, Heth R. Turnquist, Mary M. McIlhaney, Sam D. Sanderson, Joseph T. Bruder, Yik Y L Yu, Hans Gerhard Burgert, Joyce C Solheim

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

A protein of unknown physiological function, called amyloid precursor-like protein 2 (APLP2), forms an association with the murine class I molecule Kd that is up-regulated by the presence of the adenoviral protein E3/19K. We have extended these findings to show that APLP2 and E3/19K associate preferentially with folded Kd and not with the open form. APLP2 was detectable at the cell surface, but its surface expression was not upregulated by the concurrent expression of Kd. Experimental down-regulation of APLP2 expression caused a consistent increase in the surface expression of Kd, indicating that APLP2 normally reduces Kd surface expression. These data suggest a role for APLP2 in controlling the maturation of major histocompatibility complex class I molecules.

Original languageEnglish (US)
Pages (from-to)12618-12623
Number of pages6
JournalJournal of Biological Chemistry
Volume278
Issue number15
DOIs
StatePublished - Apr 11 2003

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Amyloid beta-Protein Precursor
Amyloid
Proteins
Major Histocompatibility Complex
Molecules
Down-Regulation

ASJC Scopus subject areas

  • Biochemistry
  • Molecular Biology
  • Cell Biology

Cite this

The amyloid precursor-like protein 2 and the adenoviral E3/19K protein both bind to a conformational site on H-2Kd and regulate H-2Kd expression. / Morris, Chantey R.; Petersen, Jason L.; Vargas, Shanna E.; Turnquist, Heth R.; McIlhaney, Mary M.; Sanderson, Sam D.; Bruder, Joseph T.; Yu, Yik Y L; Burgert, Hans Gerhard; Solheim, Joyce C.

In: Journal of Biological Chemistry, Vol. 278, No. 15, 11.04.2003, p. 12618-12623.

Research output: Contribution to journalArticle

Morris, CR, Petersen, JL, Vargas, SE, Turnquist, HR, McIlhaney, MM, Sanderson, SD, Bruder, JT, Yu, YYL, Burgert, HG & Solheim, JC 2003, 'The amyloid precursor-like protein 2 and the adenoviral E3/19K protein both bind to a conformational site on H-2Kd and regulate H-2Kd expression', Journal of Biological Chemistry, vol. 278, no. 15, pp. 12618-12623. https://doi.org/10.1074/jbc.M208203200
Morris, Chantey R. ; Petersen, Jason L. ; Vargas, Shanna E. ; Turnquist, Heth R. ; McIlhaney, Mary M. ; Sanderson, Sam D. ; Bruder, Joseph T. ; Yu, Yik Y L ; Burgert, Hans Gerhard ; Solheim, Joyce C. / The amyloid precursor-like protein 2 and the adenoviral E3/19K protein both bind to a conformational site on H-2Kd and regulate H-2Kd expression. In: Journal of Biological Chemistry. 2003 ; Vol. 278, No. 15. pp. 12618-12623.
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