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. 2015 Apr 2;96(4):565–580. doi: 10.1016/j.ajhg.2015.02.009

Table 2.

HLA Residues Associated at the Genome-wide Level of Significance of the Amino Acid Positions Included in the Model that Best Explains the HLA Association with Giant Cell Arteritis

Molecule Amino Acid Residues Population Residue Frequency
p Value OR (95% CI) Classical HLA Alleles
GCA CTRL
HLA-DRβ1 His13 Meta-analysis 5.12 × 10−38 1.92 (1.74–2.12) 04:01, 04:02, 04:03, 04:04, 04:05, 04:07, and 04:08
Spain 0.2097 0.1272 7.24 × 10−14 1.94 (1.63–2.31)
UK 0.3247 0.1944 1.81 × 10−12 2.00 (1.65–2.43)
North America 0.2854 0.1651 9.44 × 10−9 2.02 (1.59–2.57)
Italy 0.1155 0.0724 1.54 × 10−3 1.71 (1.23–2.37)
Norway 0.3182 0.2233 9.29 × 10−3 1.64 (1.13–2.38)
Germany 0.2263 0.1451 2.19 × 10−3 1.77 (1.23–2.54)
Ser13 Meta-analysis 3.27 × 10−8 0.79 (0.73–0.86) 03:01, 11:01, 11:02, 11:03, 11:04, 13:01, 13:02, 13:03, 13:05, 14:01, and 14:02
Spain 0.3270 0.4123 9.70 × 10−9 0.68 (0.60–0.78)
UK 0.1633 0.2087 1.57 × 10−2 0.74 (0.58–0.95)
North America 0.3317 0.3699 1.53 × 10−1 0.85 (0.68–1.06)
Italy 0.4958 0.5028 8.88 × 10−1 0.99 (0.81–1.20)
Norway 0.3030 0.3115 8.00 × 10−1 0.95 (0.67–1.37)
Germany 0.3737 0.3739 8.36 × 10−1 0.97 (0.71–1.32)
HLA-DQα1 Gln47 Meta-analysis 1.38 × 10−35 1.85 (1.68–2.04) 03:01
Arg56 Spain 0.2156 0.1381 4.86 × 10−12 1.81 (1.53–2.15)
Val76 UK 0.3327 0.2069 3.36 × 10−11 1.91 (1.58–2.31)
North America 0.3024 0.1758 4.32 × 10−9 2.02 (1.60–2.56)
Italy 0.1218 0.0776 1.52 × 10−3 1.69 (1.22–2.34)
Norway 0.3384 0.2326 4.20 × 10−3 1.71 (1.19–2.47)
Germany 0.2368 0.1564 3.26 × 10−3 1.71 (1.20–2.44)
Arg47 Meta-analysis 3.84 × 10−29 0.61 (0.56–0.67) 01:01, 01:02, and 01:03
Gly56 Spain 0.3014 0.3767 2.20 × 10−7 0.70 (0.61–0.80)
Met76 UK 0.2410 0.3885 5.27 × 10−11 0.50 (0.41–0.61)
North America 0.2732 0.4007 1.46 × 10−6 0.56 (0.44–0.71)
Italy 0.2668 0.3622 5.40 × 10−5 0.64 (0.52–0.79)
Norway 0.2727 0.4412 3.68 × 10−5 0.46 (0.32–0.67)
Germany 0.3211 0.4382 1.90 × 10−3 0.60 (0.44–0.83)
HLA-B Thr45 Meta-analysis 3.78 × 10−9 0.76 (0.69–0.83) 18:01, 35:01, 35:02, 35:03, 35:08, 35:12, 37:01, 51:01, 51:06, 51:08, 52:01, 53:01, and 58:01
Spain 0.2608 0.3082 5.57 × 10−4 0.78 (0.68–0.90)
UK 0.1175 0.1703 1.80 × 10−3 0.65 (0.49–0.85)
North America 0.1756 0.2383 6.83 × 10−3 0.69 (0.53–0.90)
Italy 0.3718 0.4331 1.87 × 10−2 0.78 (0.64–0.96)
Norway 0.1162 0.1551 1.48 × 10−1 0.70 (0.43–1.13)
Germany 0.2105 0.2167 8.83 × 10−1 0.97 (0.68–1.39)

The classical HLA alleles in our dataset that contain those amino acids are shown. Asterisk () indicates amino acids involved in antigen binding.