{{Rsnum
|rsid=1801320
|Gene=RAD51
|Chromosome=15
|position=40695330
|Orientation=plus
|ReferenceAllele=C
|MissenseAllele=G
|GMAF=0.1304
|Gene_s=DLX3,RAD51
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
|geno1=(C;C)
|geno2=(C;G)
|geno3=(G;G)
}}{{ population diversity
| geno1=(C;C)
| geno2=(C;G)
| geno3=(G;G)
| CEU | 0.0 | 12.3 | 87.7
| HCB | 2.2 | 22.2 | 75.6
| JPT | 2.4 | 24.4 | 73.2
| YRI | 4.9 | 37.7 | 57.4
| ASW | 0.0 | 0.0 | 0.0
| CHB | 2.2 | 22.2 | 75.6
| 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
}}

[[rs1801320]], also known as 135G>C, is a SNP in the 5'-untranslated region (UTR) of the [[RAD51]] gene.

A meta-analysis of 12 studies involving 7,065 cases and 6,981 controls found no evidence for a significant association between [[rs1801320]] and risk for breast cancer in non-BRCA1/BRCA1 carriers, contrary to a previous report.{{PMID|20461453}}

{{PMID|17999359|OA=1
}} [[rs1801320]] in the [[CIMBA]] study so perhaps [[breast cancer]] related

{{PMID Auto
|PMID=21725594
|Title=Combined effect of polymorphisms in Rad51 and Xrcc3 on breast cancer risk and chromosomal radiosensitivity
}}

{{PMID Auto
|PMID=17889711
|Title=RAD51 135G>C polymorphism and risk of familial breast cancer in a South American population.
}}

{{PMID Auto
|PMID=19276285
|Title=Associations between single nucleotide polymorphisms in double-stranded DNA repair pathway genes and familial breast cancer.
|OA=1
}}

{{PMID Auto
|PMID=19536092
|Title=Explorative study to identify novel candidate genes related to oxaliplatin efficacy and toxicity using a DNA repair array.
|OA=1
}}

{{PMID Auto
|PMID=19584272
|Title=Modification of ovarian cancer risk by BRCA1/2-interacting genes in a multicenter cohort of BRCA1/2 mutation carriers.
|OA=1
}}

{{PMID Auto
|PMID=20386703
|Title=Association between DNA damage response and repair genes and risk of invasive serous ovarian cancer.
|OA=1
}}

{{PMID Auto
|PMID=21104022
|Title=Polymorphisms in RAD51, XRCC2 and XRCC3 genes of the homologous recombination repair in colorectal cancer--a case control study.
|OA=1
}}

{{PMID Auto
|PMID=24568492
|Title=Equivocal Association of RAD51 Polymorphisms with Risk of Esophageal Squamous Cell Carcinoma in a Chinese Population
}}

{{PMID Auto
|PMID=24930116
|Title=Association of polymorphisms in the 5' untranslated region of RAD51 gene with risk of endometrial cancer in the Polish population
}}
{{on chip | 23andMe v1}}
{{on chip | 23andMe v2}}
{{on chip | 23andMe v3}}
{{on chip | 23andMe v4}}
{{on chip | HumanOmni1Quad}}