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Table 1 BRCA1 and BRCA2 missense variants analysed and likelihood ratio in favor of causality

From: A simple method for co-segregation analysis to evaluate the pathogenicity of unclassified variants; BRCA1 and BRCA2 as an example

Gene

HGVS1

traditional2

protein

# fam3

LR per family4

LR-variant5

BRCA1

c.53T>C

172T>C

p.M18T

2

5.7004(2+)

7.9777

     

1.3995(4+; 6+; 3-)

 

BRCA1

c.4964C>T

5083C>T

p.S1655F

1

6.7425(3+; 2+)

6.7425

BRCA1

c.5096G>A

5215G>A

p.R1699Q

1

1.4280(2+)

1.4280

BRCA2

c.1385A>G

1613A>G

p.E462G

4

0.7738(1+; 1+)

0.0965

     

0.6757(1+; 1+)

 
     

1.2459(1+; 1-)

 
     

0.1481(1+; 1-)

 

BRCA2

c.7978T>G

8206T>G

p.Y2660D

3

1.8579(2+),

230.6927

     

11.1565(2+)

 
     

11.1297(2+; 3+)

 

BRCA2

c.8351C>T

8579G>A

p.R2784Q

1

1.8101(1+; 1+)

1.8101

BRCA2

c.9154C>T

9382C>T

p.R3052W

2

3.0651(2+),

12.1960

     

3.9790(3+)

 

BRCA2

c.9155G>A

9383G>A

p.R3052Q

1

0.2208(1+; 1-)

0.2208

  1. 1The Human Genetic Variation Society (HGVS) approved guidelines http://www.hgvs.org/mutnomen have been used for BRCA1 and BRCA2 nomenclature [12].
  2. 2To facilitate published data comparison, also the traditional nomenclature is listed (Breast Cancer Information Core, http://research.nhgri.nih.gov/bic/). GenBank accession no. NM_007294.2/NP_009226.1 and NM_000059.3/NP_000050.1 have been used for BRCA1 and BRCA2 mRNA and protein numbering respectively.
  3. 3Number of families with at least two genotyped family members.
  4. 4Likelihood ratio per family. Between brackets the number of affected individuals carrying the UV (n+) or unaffected individuals with the UV (n+), affected individuals without the UV (n-) or unaffected individuals without the UV (n-).
  5. 5The overall likelihood ratio is derived by the product of the LR over the independent families.