rs27044
— ERAP1 Gln730Glu
Missense variant in the ERAP1 C-terminal regulatory domain modulating peptide trimming length-selectivity; Gln730 (G allele, risk) is part of hyperactive ERAP1 haplotypes that over-trim peptides for HLA class I presentation, increasing ankylosing spondylitis susceptibility in HLA-B27 carriers
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