7nup

Structural highlights

Function

ERAP2_HUMAN Aminopeptidase that plays a central role in peptide trimming, a step required for the generation of most HLA class I-binding peptides. Peptide trimming is essential to customize longer precursor peptides to fit them to the correct length required for presentation on MHC class I molecules. Preferentially hydrolyzes the basic residues Arg and Lys.^{[1] [2] [3]}

See Also

• Aminopeptidase 3D structures

References

1. ↑ Tanioka T, Hattori A, Masuda S, Nomura Y, Nakayama H, Mizutani S, Tsujimoto M. Human leukocyte-derived arginine aminopeptidase. The third member of the oxytocinase subfamily of aminopeptidases. J Biol Chem. 2003 Aug 22;278(34):32275-83. Epub 2003 Jun 10. PMID:12799365 doi:http://dx.doi.org/10.1074/jbc.M305076200
2. ↑ Saveanu L, Carroll O, Lindo V, Del Val M, Lopez D, Lepelletier Y, Greer F, Schomburg L, Fruci D, Niedermann G, van Endert PM. Concerted peptide trimming by human ERAP1 and ERAP2 aminopeptidase complexes in the endoplasmic reticulum. Nat Immunol. 2005 Jul;6(7):689-97. Epub 2005 May 22. PMID:15908954 doi:http://dx.doi.org/10.1038/ni1208
3. ↑ Chang SC, Momburg F, Bhutani N, Goldberg AL. The ER aminopeptidase, ERAP1, trims precursors to lengths of MHC class I peptides by a "molecular ruler" mechanism. Proc Natl Acad Sci U S A. 2005 Nov 22;102(47):17107-12. Epub 2005 Nov 14. PMID:16286653 doi:http://dx.doi.org/0500721102