Variant Gene Risk Allele Score vda Association Type Original DB Sentence supporting the association PMID PMID Year
dbSNP: rs121913273
rs121913273
0.730 GeneticVariation UNIPROT

dbSNP: rs1057519927
rs1057519927
0.700 GeneticVariation UNIPROT

dbSNP: rs121913281
rs121913281
T 0.700 CausalMutation CLINVAR

dbSNP: rs121913286
rs121913286
0.700 GeneticVariation UNIPROT

dbSNP: rs1560137609
rs1560137609
GT 0.700 GeneticVariation CLINVAR

dbSNP: rs121913279
rs121913279
0.800 GeneticVariation BEFREE Active mutations of PI3K catalytic subunit PIK3CA (e.g., H1047R) and amplification of its homolog PIK3CB are observed in a large number of breast cancers. 29545474

2018

dbSNP: rs17849071
rs17849071
0.010 GeneticVariation BEFREE Among different BCa intrinsic subtypes, no significant differences were found on P53 expression status (P = 0.356) or rs17849071 polymorphism (T>G) (P = 0.813). 24908061

2014

dbSNP: rs2699887
rs2699887
0.010 GeneticVariation BEFREE Epidemiologic studies suggested that mutations of the PI3K/PTEN/AKT pathway genes are associated with cancer risk, yet no data are available for PTEN rs701848, PIK3CA rs2699887, and AKT1 rs2494752 polymorphism and breast cancer(BC) risk. 28423632

2017

dbSNP: rs121913279
rs121913279
0.800 GeneticVariation BEFREE Formalin-fixed paraffin-embedded tumour specimens from 118 HER2-overexpressing breast cancer patients treated with radical local therapy and trastuzumab in adjuvant setting were used for the assessment of: (1) PIK3CA gene mutations (p.H1047R and p.E545K) by qPCR, and (2) expression of Ki-67, EGFR, MUC4, HER3 and PTEN by immunohistochemistry. 28123607

2017

dbSNP: rs104886003
rs104886003
0.760 GeneticVariation BEFREE Formalin-fixed paraffin-embedded tumour specimens from 118 HER2-overexpressing breast cancer patients treated with radical local therapy and trastuzumab in adjuvant setting were used for the assessment of: (1) PIK3CA gene mutations (p.H1047R and p.E545K) by qPCR, and (2) expression of Ki-67, EGFR, MUC4, HER3 and PTEN by immunohistochemistry. 28123607

2017

dbSNP: rs17849079
rs17849079
0.010 GeneticVariation BEFREE Furthermore, we have shown a high prevalence (8.2-fold) of a silent variant (SNP, rs17849079) in the Arab breast cancer population compared with disease-free individuals. 23982433

2013

dbSNP: rs121913279
rs121913279
0.800 GeneticVariation BEFREE Gene set enrichment analysis reveals a highly significant concordance of the genes differentially expressed in MCF-10A-H1047R cells and the established protein and RNA signatures of basal breast cancer. 25583473

2015

dbSNP: rs104886003
rs104886003
0.760 GeneticVariation BEFREE In this study, we directly compared PIK3CA hotspot mutations (E545K, H1047R) in EpCAM-positive CTCs and paired plasma-ctDNA in breast cancer (BrCa). 31254443

2019

dbSNP: rs121913279
rs121913279
0.800 GeneticVariation BEFREE In this study, we directly compared PIK3CA hotspot mutations (E545K, H1047R) in EpCAM-positive CTCs and paired plasma-ctDNA in breast cancer (BrCa). 31254443

2019

dbSNP: rs121913279
rs121913279
0.800 GeneticVariation BEFREE In this study, we report the development of a knock-in mouse model for breast cancer where the endogenous Pik3ca allele was modified to allow tissue-specific conditional expression of a frequently found Pik3ca(H1047R) (Pik3ca(e20H1047R)) mutant allele. 22370636

2013

dbSNP: rs121913279
rs121913279
0.800 GeneticVariation BEFREE In trastuzumab-resistant BT474 H1047R breast cancer xenografts, NVP-BEZ235 inhibited PI3K signaling and had potent antitumor activity. 18829560

2008

dbSNP: rs121913273
rs121913273
0.730 GeneticVariation BEFREE ORR and 6 m PFS were both 5.6% (1/18), with one patient with HR+ breast cancer and a PIK3CA E542K mutation experiencing a partial response (on treatment for 36 weeks). 31277699

2019

dbSNP: rs121913279
rs121913279
0.800 GeneticVariation UNIPROT PIK3CA mutation and histological type in breast carcinoma: high frequency of mutations in lobular carcinoma. 16353168

2006

dbSNP: rs104886003
rs104886003
0.760 GeneticVariation UNIPROT PIK3CA mutation and histological type in breast carcinoma: high frequency of mutations in lobular carcinoma. 16353168

2006

dbSNP: rs397517201
rs397517201
0.700 GeneticVariation UNIPROT PIK3CA mutation and histological type in breast carcinoma: high frequency of mutations in lobular carcinoma. 16353168

2006

dbSNP: rs121913279
rs121913279
0.800 GeneticVariation BEFREE PIK3CA mutations are seemingly the most common driver mutations in breast cancer with H1047R and E545K being the most common of these, accounting together for around 60% of all PIK3CA mutations and have promising therapeutic implications. 29523855

2018

dbSNP: rs104886003
rs104886003
0.760 GeneticVariation BEFREE PIK3CA mutations are seemingly the most common driver mutations in breast cancer with H1047R and E545K being the most common of these, accounting together for around 60% of all PIK3CA mutations and have promising therapeutic implications. 29523855

2018

dbSNP: rs121913279
rs121913279
0.800 GeneticVariation BEFREE Recent studies by Meyer and colleagues, and Liu and colleagues demonstrate that expression of the H1047R exon 20 mutant of PIK3CA in luminal mammary epithelial cells induces tumorigenesis, implying that PIK3CA mutation is an early event in breast cancer. 22315990

2012

dbSNP: rs121913279
rs121913279
0.800 GeneticVariation BEFREE Recently, PI3K H1047R mutation has been reported to sensitize breast cancer cells to PI3K inhibition by aspirin. 29504069

2018

dbSNP: rs587777790
rs587777790
0.010 GeneticVariation BEFREE Structural prediction, whole exome sequencing and molecular dynamics simulation confirms p.G118D somatic mutation of PIK3CA as functionally important in breast cancer patients. 31174159

2019