{{Rsnum
|rsid=72549325
|Chromosome=1
|Orientation=plus
|geno1=(G;G)
|geno2=(G;T)
|geno3=(T;T)
|Gene=FMO3
|position=171107795
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
|Gene_s=FMO3
}}[[rs72549325]], also known as Gly148Ter, is a SNP in the [[FMO3]] gene. A single report links two Korean individuals, both heterozygous for this SNP, to low FMO3 activity based on their low conversion rates of caffeine to theobromine. This is presumed to be associated with [[trimethylaminuria]].{{PMID|10376762}} 

{{omim
|id=136132
|rsnum=72549325
|variant=0006
}}{{ClinVar
|rsid=72549325
|Reversed=0
|FwdREF=G
|FwdALT=A,T
|REF=G
|ALT=A,T
|RSPOS=171107795
|CHROM=1
|dbSNPBuildID=130
|SSR=0
|SAO=1
|VP=0x050260000e05000002110100
|GENEINFO=FMO3:2328
|GENE_NAME=FMO3
|GENE_ID=2328
|WGT=1
|VC=SNV
|CLNALLE=2
|CLNHGVS=NC_000001.11:g.171107795G>T
|CLNORIGIN=1
|CLNSIG=5
|Tags=PM;S3D;NSM;NSN;REF;ASP;OTHERKG;LSD;OM
|CLNACC=RCV000017703.26
|CLNDBN=Fmo3 activity, decreased
|CLNSRC=ClinVar; OMIM Allelic Variant
|CLNSRCID=NM_001002294.2:c.442G>T; 136132.0006
|Disease=Fmo3 activity
}}