{{Rsnum
|rsid=2303080
|Gene=MTRR
|Chromosome=5
|position=7878311
|Orientation=plus
|GMAF=0.04454
|Gene_s=MTRR
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
|geno1=(A;A)
|geno2=(A;T)
|geno3=(T;T)
}}{{ population diversity
| geno1=(A;A)
| geno2=(A;T)
| geno3=(T;T)
| CEU | 0.0 | 6.2 | 93.8
| HCB | 0.0 | 4.4 | 95.6
| JPT | 0.0 | 34.1 | 65.9
| YRI | 0.0 | 0.0 | 100.0
| ASW | 0.0 | 0.0 | 0.0
| CHB | 0.0 | 4.4 | 95.6
| CHD | 0.0 | 0.0 | 0.0
| GIH | 0.0 | 0.0 | 0.0
| LWK | 0.0 | 0.0 | 0.0
| MEX | 0.0 | 0.0 | 0.0
| MKK | 0.0 | 0.0 | 0.0
| TSI | 0.0 | 0.0 | 0.0
| HapMapRevision=28
}}[[Yasko Methylation]] Necessary to regenerate Methyl-B12 for use by MTR. Mutation can cause shortage, suggesting a need for more B12.

{{PMID Auto
|PMID=19493349
|Title=118 SNPs of folate-related genes and risks of spina bifida and conotruncal heart defects.
|OA=1
}}

{{on chip | HumanOmni1Quad}}