Table 1.
Summary of GATM (glycine amidinotransferase) gene sequencing results. Variants identified in the autisim spectrum disorder (ASD) population are noted, and minor allele frequency (MAF) calculated. MAF of variants present in 1000 Genomes, Exome Sequencing Project (ESP) and Exome Aggregation Consortium (ExAC) databases are shown for comparison. 1 Total number of samples = 166 (332 alleles); 2 MAF = minor allele frequency; the number of alleles in which variant was found/total number of alleles; 3 MAC = minor allele count; the number of times the minor allele was observed in the sample population of chromosomes; 4 Polymorphic variant: (>0.01 MAF in one database); 5 Rare variant: ≤0.01 MAF in at least one published database; 6 Novel variant: Not present in any published database; coding sequence (exons) are in bold. SNP: single nucleotide polymorphism; UTR: untranslated region; and SIFT: ‘sorting tolerant from intolerant’ algorithm.
Autism Population (n = 166, Alleles = 332 1) | Databases | ||||||||
---|---|---|---|---|---|---|---|---|---|
GATM Exon/Intron | DNA Change/Protein Change | SNP ID | Homozygous/Heterozygous Change 1 | Number of Observed Alleles | MAF 2 | 1000 Genomes (Phase 3) MAF, MAC 3) | ESP Report (July 2013) MAF, MAC | ExAC (January 2015) MAF, MAC | Comments |
5UTR | c. − 200C > T | rs7164139 | Homo: 20 | 118 | 0.355 | 0.444 | x | 0.5533 | polymorphic variant 4 |
Hetero: 78 | 2223/5008 | 83/150 | |||||||
5UTR | c. − 140C > T | rs533626184 | Hetero: 1 | 1 | 0.003 | 0.0022 | x | x | rare variant |
11/5008 | |||||||||
5UTR | c. − 30T > G | rs8024550 | Hetero: 5 | 5 | 0.015 | 0.144 | 0.073 | 0.07742 | polymorphic variant |
720/5008 | 651/8926 | 155/2002 | |||||||
intron 1 | c.70 − 77C > T | rs12437887 | Homo: 20 | 116 | 0.349 | 0.443 | x | x | polymorphic variant |
Hetero: 76 | 2221/5008 | ||||||||
intron 1 | c.70 − 38G > T | rs12437840 | Homo: 23 | 119 | 0.358 | 0.443 | 0.270 | 0.3827 | polymorphic variant |
Hetero: 73 | 2219/5008 | 3509/12992 | 24153/63112 | ||||||
exon 2 | c.282G > A | rs141223762 | Hetero: 1 | 1 | 0.003 | NA | 0.000154 | 0.0001153 | rare variant 5 |
p.= | 2/12992 | 14/121390 | |||||||
intron 2 | c.289 − 76T > C | rs540536879 | Hetero: 3 | 3 | 0.009 | 0.000998 | x | x | rare variant |
5/5008 | |||||||||
intron 2 | c.289 − 34T > C | rs74009633 | Hetero: 1 | 1 | 0.003 | 0.0096 | 0.005 | 0.001947 | rare variant |
48/5008 | 65/12982 | 193/99144 | |||||||
intron 2 | c.289 − 24G > A | rs145644806 | Hetero: 1 | 1 | 0.003 | 0.0002 | 0.000154 | x | rare variant |
1/5008 | 2/12988 | ||||||||
exon 3 | c.330A > T | rs1288775 | Homo: 29 | 132 | 0.398 | 0.619 | 0.435 | 0.581 | polymorphic variant |
p.Q110H | Hetero: 74 | 3098/5008 | 5651/12992 | 70416/121104 | |||||
intron 3 | c.485-11_dupT | Homo: 1 | 2 | 0.006 | x | x | x | novel variant 6 | |
exon 5 | c.700G > C | Hetero: 1 | 1 | 0.003 | NA | x | 0.00001651 | rare variant | |
p.D234H | 2/121104 | SIFT: deleterious (score: 0); PolyPhen-2: probably damaging (score: 0.986); MutationTaster: disease-causing (p-value: 1.0) | |||||||
intron 5 | c.813 + 46C > G | rs150282769 | Hetero: 1 | 1 | 0.003 | 0.0002 | 0.000847 | 0.0004 | rare variant |
1/5008 | 11/12992 | 46/118404 | |||||||
intron 6 | c.978 + 43T > C | Hetero: 1 | 1 | 0.003 | x | x | x | novel variant | |
intron 6 | c.979 − 316A > G | rs9972405 | Homo: 1 | 40 | 0.120 | 0.0998 | x | x | polymorphic variant |
Hetero: 38 | 500/5008 | ||||||||
intron 6 | c.979-49_979-51delTAA | rs200176845 | Homo: 1 | 2 | 0.006 | 0.0100 | 0.0137 | 0.00228 | rare variant |
50/5008 | 171/12480 | 248/108652 | |||||||
intron 6 | c.979 − 39T > C | Hetero: 1 | 1 | 0.003 | x | x | x | novel variant | |
intron 7 | c.1043 − 254A > G | rs57369693 | Homo: 1 | 40 | 0.120 | 0.0998 | x | x | polymorphic variant |
Hetero: 38 | 500/5008 | ||||||||
intron 8 | c.1159 + 39A > G | rs113129788 | Hetero: 1 | 1 | 0.003 | 0.0002 | x | 0.000019 | rare variant |
1/5008 | 2/105236 | ||||||||
intron 8 | c.1160 − 46C > T | rs201589362 | Hetero: 2 | 2 | 0.006 | 0.0002 | 0.00006987 | rare variant | |
1/5008 | 7/100180 | ||||||||
exon 9 | c.1252T > C | rs1145086 | Homo: 46 | 172 | 0.518 | 0.2823 | 0.534 | 0.5329 | polymorphic variant |
p.= | Hetero: 80 | 1414/5008 | 6937/12992 | 64562/121146 | |||||
3UTR | c.*27C > G | rs200143728 | Hetero: 1 | 1 | 0.003 | NA | x | 0.0004716 | rare variant |
56/118754 | |||||||||
3UTR | c.*125G > A | rs143689218 | Hetero: 2 | 2 | 0.006 | 0.0086 | x | x | rare variant |
43/5008 | |||||||||
3UTR | c.*411G > A | Hetero: 1 | 1 | 0.003 | x | x | x | novel variant | |
3UTR | c.*600A > G | rs1049503 | Homo: 23 | 120 | 0.361 | 0.4507 | x | x | polymorphic variant |
Hetero: 74 | 2257/5008 | ||||||||
3UTR | c.*715T > C | rs1049508 | Homo: 27 | 123 | 0.370 | 0.618 | x | x | polymorphic variant |
Hetero: 69 | 3094/5008 | ||||||||
3UTR | c.*734_*735insCA | rs35410548 | Homo: 46 | 171 | 0.515 | 0.718 | x | x | polymorphic variant |
Hetero: 79 | 3594/5008 | ||||||||
3UTR | c.*913G > A | rs17618637 | Hetero: 10 | 10 | 0.030 | 0.0553 | x | x | polymorphic variant |
277/5008 | |||||||||
3UTR | c.*940C > T | rs1049518 | Homo: 54 | 108 | 0.325 | 0.718 | x | x | polymorphic variant |
3594/5008 |