Supplementary Tables Supplemental Table S1: Comparison of the Coverage of Reference Panels Used for SNP Imputation. the Markers
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Supplementary Tables Supplemental Table S1: Comparison of the coverage of reference panels used for SNP imputation. The markers on the Consortium on Asthma among African-ancestry Populations in the Americas (CAAPA) reference panel and Haplotype Reference Consortium (HRG) used to impute SNPs from our AA and CAU participants were compared to one thousand genomes (1kG) dataset. Loci information CAAPA vs 1kG HRC vs 1kG Total loci 45,639,158 90,558,388 Overlapping loci 24,880,301 49,826,569 Percent overlap 54.52% 55.02% 1kG-only loci 9,363,544 15,148,191 Ref-only loci 8,461,186 22,649,501 Supplemental Table S2: SNP imputation results. The total number of SNPs imputed for the AA and CAU participants either using the Michigan imputation server (Minimac) or Beagle. Targets prepared for: AA CAU Beagle 730,616 726,165 Minimac 698,343 660,733 Supplemental Table S3: Allele frequencies of TA2R38 SNPs by each ancestral group and time point. The rs number of each SNP, the location of SNP buy chromosome (CHR) and base pair position (POS) is provided along with the allele frequency (ALLELE:FREQ) for each SNP. Baseline 6-month Baseline 6-month AA (N = 297) AA (N = 234) CAU (N = 198) CAU (N = 151) SNP CHR POS ALLELE:FREQ ALLELE:FREQ ALLELE:FREQ ALLELE:FREQ rs10246939 7 141672604 T:0.49 C:0.51 T:0.50 C:0.50 T:0.54 C:0.46 T:0.54 C:0.46 rs1726866 7 141672705 G:0.68 A:0.32 G:0.68 A:0.32 G:0.46 A:0.54 G:0.46 A:0.54 rs713598 7 141673345 C:0.50 G:0.50 C:0.50 G:0.50 C:0.58 G:0.42 C:0.58 G:0.42 Supplemental Table S4: Linkage disequilibrium analysis of TAS2R38 SNPs at each time point of the intervention. Statistical analyses of linkage disequilibrium are represented by R- squared (R^2) and Dprime values of the pairwise comparisons of the indicated SNPs from the AA and CAU participants at either the baseline or 6-month time point are indicated. Baseline 6-month Baseline 6-month AA (N = 297) AA (N = 234) CAU (N = 198) CAU (N = 151) POS1 POS2 R^2 Dprime R^2 Dprime R^2 Dprime R^2 Dprime rs10246939 rs1726866 0.49 -1.00 0.47 -1.00 0.98 -0.99 0.97 -0.99 rs10246939 rs713598 0.95 0.99 0.96 0.98 0.84 1.00 0.84 1.00 rs1726866 rs713598 0.46 -0.98 0.44 -0.97 0.84 -1.00 0.84 -1.00 Supplemental Table 5: Haplotype distribution of TAS2R38 alleles at each time point of the intervention. The plus strand haplotype sequence (HAPLO), the count of each haplotype, and the resulting amino acid sequence of the allele are indicated from the AA and CAU participants at either the baseline or 6-month time point. AA Baseline (N = 297) Allele:frequency C:G:G:0.500 T:A:C:0.318 T:G:C:0.171 C:G:C:0.008 T:A:G:0.003 Haplotype PAV AVI AAI AAV PVI AA 6-month (N = 234) Allele:frequency C:G:G:0.500 T:A:C:0.314 T:G:C:0.180 C:G:C:0.006 T:A:G:0.003 Haplotype PAV AVI AAI AAV PVI CAU Baseline (N = 198) Allele:frequency C:G:G:0.422 T:A:C:0.533 T:G:C:0.003 C:G:C:0.040 C:A:C:0.003 Haplotype PAV AVI AAI AAV AVV CAU 6-month (N = 151) Allele:frequency C:G:G:0.417 T:A:C:0.536 T:G:C:0.003 C:G:C:0.040 C:A:C:0.003 Haplotype PAV AVI AAI AAV AVV Supplemental Table 6: T2R gene family member SNPs used in multivariate analysis. Tagged SNPs of T2R gene family members were used for principal components analyses. The associated gene and the location of the SNP are indicated by the chromosome number (CHR) and basepair position (POS). The type of SNP (Type) indicates whether the SNP is in a non- coding region otherwise, the type of coding-region SNP is indicated (synonymous, missense, or nonsense). SNP Gene CHR POS Type rs41467 TAS2R1 5 9628089 non-coding rs2234233 TAS2R1 5 9629529 missense R206W rs1357949 TAS2R16 7 122633264 non-coding rs6466849 TAS2R16 7 122633654 non-coding rs860170 TAS2R16 7 122635024 missense H222R rs978739 TAS2R16 7 122635900 non-coding rs11763979 TAS2R3 7 141462537 non-coding rs2233998 TAS2R4 7 141478308 missense F7S rs2234001 TAS2R4 7 141478574 missense V96L rs2227264 TAS2R5 7 141490238 missense S26I rs10246939 TAS2R38 7 141672604 missense I296V rs1726866 TAS2R38 7 141672705 missense V262A rs713598 TAS2R38 7 141673345 missense A49P rs4726600 TAS2R39 7 142881540 non-coding rs10260248 TAS2R40 7 142919731 missense S187Y rs534126 TAS2R40 7 142921234 non-coding rs4595035 TAS2R60 7 143141475 synonymous R310R rs1404635 TAS2R41 7 143175154 synonymous T63T rs10278721 TAS2R41 7 143175345 missense P127L rs2588350 TAS2R7 12 10953057 non-coding downstream rs619381 TAS2R7 12 10954258 missense M304I rs3741845 TAS2R9 12 10962115 missense V187A rs11610105 TAS2R14 12 11088981 non-coding rs3741843 TAS2R14 12 11091432 synonymous R125R rs3916060 TAS2R14 12 11093073 non-coding rs10772397 TAS2R50 12 11138680 synonymous P259P rs1376251 TAS2R50 12 11138852 missense C203Y rs6488334 TAS2R50 12 11140444 non-coding rs7135018 TAS2R20 12 11150240 missense K79E rs7301234 TAS2R20 12 11150884 non-coding rs10772408 TAS2R20 12 11151599 non-coding rs10772420 TAS2R19 12 11174276 missense R299C rs10845293 TAS2R31 12 11183255 missense A227V rs12370363 TAS2R31 12 11183512 synonymous A141A rs10845296 TAS2R31 12 11184140 non-coding rs2708381 TAS2R46 12 11214145 nonsense rs2708380 TAS2R46 12 11214212 missense L228M rs2599404 TAS2R30 12 11286088 missense F252L rs5020531 TAS2R42 12 11338957 missense F196S Supplemental Table 7: Factor loadings of the principal components analysis. The two principal components (PC) with the highest absolute correlation value of the adjusted predicted vegetable intake (used as a supplementary variable) for the AA and CAU groups are listed. For each SNP listed (loading > 0.3) the name of the gene and the factor loadings for the indicated component is provided. The light shaded rows indicate the TAS2R38 SNPs found in both analyses, the dark shaded rows are the other common SNPs found in the AA and CAU analyses, and † indicate SNPs with loading values higher than TAS2R38 SNPs. AA SNPs Gene PC4 PC5 rs1357949 TAS2R16 0.067991 0.308476 rs10246939 TAS2R38 -0.811926 0.202478 rs1726866 TAS2R38 0.773523 -0.02864 rs713598 TAS2R38 -0.811926 0.202478 rs4726600 TAS2R39 0.311989 0.106534 rs1404635 TAS2R41 0.434598 0.286556 rs10278721 TAS2R41 0.434598 0.286556 rs3916060 TAS2R14 0.121297 0.322448 rs1376251 TAS2R50 -0.136807 0.533771 rs7301234 TAS2R20 -0.175053 0.489455 rs10772408 TAS2R20 -0.051528 0.542298 Vegetables 0.11937 -0.12642 CAU SNPs Gene PC2 PC4 †rs11763979 TAS2R3 -0.779291 -0.017023 †rs2233998 TAS2R4 0.78411 0.023687 †rs2234001 TAS2R4 0.792898 0.045053 †rs2227264 TAS2R5 0.78411 0.023687 rs10246939 TAS2R38 0.657516 0.207052 rs1726866 TAS2R38 -0.650735 -0.197802 rs713598 TAS2R38 0.657516 0.207052 rs619381 TAS2R7 0.444284 -0.286315 rs3741843 TAS2R14 0.546394 -0.323296 rs1376251 TAS2R50 -0.039337 0.62516 rs6488334 TAS2R50 -0.177979 0.361978 rs7135018 TAS2R20 -0.206689 0.366842 rs7301234 TAS2R20 -0.024468 0.629872 rs10772408 TAS2R20 -0.212275 0.952096 rs10772420 TAS2R19 -0.346851 -0.360205 rs10845293 TAS2R31 -0.346851 -0.360205 rs12370363 TAS2R31 -0.205156 0.373125 rs10845296 TAS2R31 0.507478 -0.220709 rs2708381 TAS2R46 -0.205156 0.373125 rs2708380 TAS2R46 -0.355818 -0.356567 rs2599404 TAS2R30 -0.341294 -0.34939 Vegetables -0.12746 -0.13737 Supplemental Table 8: T2R gene family member SNPs used in multivariate analysis. Tagged SNPs of several T2R gene family members were included in the principal components analyses. The associated gene and the location of the SNP are indicated by the chromosome number (CHR) and basepair position (POS). The type of SNP (Type) indicates whether the SNP is in a non-coding region otherwise, the type of coding-region SNP is indicated (synonymous, missense, or nonsense). HHL cohort CAU cohort SNP Gene Chr Pos p (SNP) p (SNP:time) p (SNP) p (SNP:time) rs11763979 TAS2R3 7 141462537 0.7204 0.6573 0.9544 0.5056 rs2233998 TAS2R4 7 141478308 0.6953 0.5778 0.9424 0.5402 rs2234001 TAS2R4 7 141478574 0.9388 0.9855 0.9168 0.5965 rs2227264 TAS2R5 7 141490238 0.7204 0.6573 0.9544 0.5056 .