{{Rsnum
|rsid=72549331
|Gene=FMO3
|Chromosome=1
|position=171114339
|Orientation=plus
|GMAF=0.0004591
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
|geno1=(G;G)
|geno2=(G;T)
|geno3=(T;T)
|Gene_s=FMO3
}}[[rs72549331]], also known as Arg387Leu, is a SNP in the [[FMO3]] gene. The homozygous minor genotype has been reported in a patient with [[trimethylaminuria]].{{PMID|10479479}} 

{{omim
|id=136132
|rsnum=72549331
|variant=0007
}}{{ClinVar
|rsid=72549331
|Reversed=0
|FwdREF=G
|FwdALT=A,T
|REF=G
|ALT=A,T
|RSPOS=171114339
|CHROM=1
|GMAF=0.0005
|dbSNPBuildID=130
|SSR=0
|SAO=1
|VP=0x050260000a05000016110100
|GENEINFO=FMO3:2328
|GENE_NAME=FMO3
|GENE_ID=2328
|WGT=1
|VC=SNV
|CLNALLE=2
|CLNHGVS=NC_000001.11:g.171114339G>T
|CLNSRC=ClinVar; OMIM Allelic Variant
|CLNORIGIN=1
|CLNSRCID=NM_001002294.2:c.1160G>T; 136132.0007
|CLNSIG=5
|CLNCUI=C0342739
|CLNDBN=Trimethylaminuria
|Disease=Trimethylaminuria
|CLNACC=RCV000017704.26
|Tags=PM;S3D;NSM;REF;ASP;KGPhase1;KGPROD;OTHERKG;LSD;OM
|CAF=0.9995; 0.0004591; .
|CLNDSDB=GeneReviews:MedGen:OMIM:SNOMED_CT
|CLNDSDBID=NBK1103:C0342739:602079:237959005
|COMMON=0
}}