rs138067005
Variant summary
Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_StrongBP6_Very_StrongBP7
The NM_000059.4(BRCA2):c.7413A>G(p.Thr2471Thr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000217 in 1,613,676 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★★).
Frequency
Consequence
NM_000059.4 synonymous
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Benign. Variant got -13 ACMG points.
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
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BRCA2 | ENST00000380152.8 | c.7413A>G | p.Thr2471Thr | synonymous_variant | Exon 14 of 27 | 5 | NM_000059.4 | ENSP00000369497.3 | ||
BRCA2 | ENST00000530893.7 | c.7044A>G | p.Thr2348Thr | synonymous_variant | Exon 14 of 27 | 1 | ENSP00000499438.2 | |||
BRCA2 | ENST00000614259.2 | n.7413A>G | non_coding_transcript_exon_variant | Exon 13 of 26 | 2 | ENSP00000506251.1 |
Frequencies
GnomAD3 genomes AF: 0.0000197 AC: 3AN: 152232Hom.: 0 Cov.: 31
GnomAD3 exomes AF: 0.0000319 AC: 8AN: 251030Hom.: 0 AF XY: 0.0000221 AC XY: 3AN XY: 135720
GnomAD4 exome AF: 0.0000219 AC: 32AN: 1461444Hom.: 0 Cov.: 34 AF XY: 0.0000193 AC XY: 14AN XY: 727028
GnomAD4 genome AF: 0.0000197 AC: 3AN: 152232Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0AN XY: 74378
ClinVar
Submissions by phenotype
not specified Benign:5
This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
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Hereditary cancer-predisposing syndrome Benign:3
This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -
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Breast-ovarian cancer, familial, susceptibility to, 2 Benign:2
Synonymous substitution variant, with low bioinformatic likelihood to result in a splicing aberration (Splicing prior probability 0.02; http://priors.hci.utah.edu/PRIORS/). -
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not provided Benign:2
BRCA2: BP4, BP7 -
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BRCA2-related disorder Benign:1
This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -
Malignant tumor of breast Benign:1
The BRCA2 p.Thr2471= variant was identified in 3 of 3698 proband chromosomes (frequency: 0.001) from individuals or families with unilateral breast cancer or hereditary breast cancer (Borg 2010, Claes 2004). The variant was also identified in dbSNP (ID: rs138067005) as "With Likely benign allele" , ClinVar (classified as benign by GeneDx and Baylor Miraca Genetics Laboratories Study description; as likely benign by Invitae, Ambry Genetics, Enigma and DNA and Cytogenetics Diagnostics Unit, Erasmus Medical Center; as uncertain significance by Integrated Genetics/Laboratory Corporation of America), Clinvitae, LOVD 3.0 (4x conflicting interpretation of pathogenicity), and in UMD-LSDB (1x as unclassified variant) databases. The variant was not identified in GeneInsight-COGR, Cosmic, BIC Database, ARUP Laboratories, or Zhejiang University Database databases. The variant was identified in control databases in 8 of 245878 chromosomes at a frequency of 0.00003 (Genome Aggregation Database Feb 27, 2017). The variant observed in European population in 8 of 111442 chromosomes (freq: 0.0001), while the variant was not observed in the African, Other, Latino, Ashkenazi Jewish, East Asian, Finnish, or South Asian populations. The p.Thr2471= variant is not expected to have clinical significance because it does not result in a change of amino acid and is not located in a known consensus splice site. In addition, in silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer, HumanSpliceFinder) do not predict a difference in splicing. In summary, based on the above information the clinical significance of this variant cannot be determined with certainty at this time although we would lean towards a more benign role for this variant. This variant is classified as likely benign. -
Familial cancer of breast Benign:1
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Hereditary breast ovarian cancer syndrome Benign:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at