{{Rsnum
|rsid=28897756
|Gene=BRCA2
|Orientation=plus
|ReferenceAllele=G
|geno1=(A;A)
|geno2=(A;G)
|geno3=(G;G)
|Chromosome=13
|position=32379913
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
|Gene_s=BRCA2
}}[[rs28897756]], also known as P3039P or 9345G/A, is a SNP in the breast cancer 2 [[BRCA2]] gene.

The rare [[rs28897756]](A) allele has been linked to increased risk for [[breast cancer]] in some Dutch families.{{PMID|10638982|OA=1
}}

{{ClinVar
|rsid=28897756
|Reversed=0
|FwdREF=G
|FwdALT=A
|REF=G
|ALT=A
|RSPOS=32954050
|CHROM=13
|dbSNPBuildID=125
|SSR=0
|SAO=0
|VP=0x050360000000000402100100
|GENEINFO=BRCA2:675
|GENE_NAME=BRCA2
|GENE_ID=675
|WGT=0
|VC=SNV
|CLNALLE=1
|CLNHGVS=NC_000013.10:g.32954050G>A
|CLNSIG=5
|Tags=PM;S3D;SLO;HD;OTHERKG;LSD
|CLNACC=RCV000031798.3; RCV000074560.2
|CLNDBN=Breast-ovarian cancer, familial 2; Familial cancer of breast
|CLNDSDB=GeneReviews:MedGen:OMIM:Orphanet; GeneReviews:MedGen:OMIM:SNOMED_CT
|CLNDSDBID=NBK1247:C2675520:612555:145; NBK1247:C0346153:114480:254843006
|Disease=Breast-ovarian cancer; Familial cancer of breast
}}

{{on chip | 23andMe v3}}
{{on chip | 23andMe v4}}
{{on chip | HumanOmni1Quad}}