Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4BP6_Very_Strong
The NM_007294.4(BRCA1):c.3600G>T(p.Gln1200His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000409 in 1,614,128 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 Benign (★★★). Another nucleotide change resulting in the same amino acid substitution has been previously reported as Likely benign in Lovd.
BRCA1 (HGNC:1100): (BRCA1 DNA repair associated) This gene encodes a 190 kD nuclear phosphoprotein that plays a role in maintaining genomic stability, and it also acts as a tumor suppressor. The BRCA1 gene contains 22 exons spanning about 110 kb of DNA. The encoded protein combines with other tumor suppressors, DNA damage sensors, and signal transducers to form a large multi-subunit protein complex known as the BRCA1-associated genome surveillance complex (BASC). This gene product associates with RNA polymerase II, and through the C-terminal domain, also interacts with histone deacetylase complexes. This protein thus plays a role in transcription, DNA repair of double-stranded breaks, and recombination. Mutations in this gene are responsible for approximately 40% of inherited breast cancers and more than 80% of inherited breast and ovarian cancers. Alternative splicing plays a role in modulating the subcellular localization and physiological function of this gene. Many alternatively spliced transcript variants, some of which are disease-associated mutations, have been described for this gene, but the full-length natures of only some of these variants has been described. A related pseudogene, which is also located on chromosome 17, has been identified. [provided by RefSeq, May 2020]
Computational evidence support a benign effect (MetaRNN=0.34490588).
BP6
Variant 17-43091931-C-A is Benign according to our data. Variant chr17-43091931-C-A is described in ClinVar as [Benign]. Clinvar id is 54931.Status of the report is reviewed_by_expert_panel, 3 stars. Variant chr17-43091931-C-A is described in Lovd as [Likely_benign].
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing
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Apr 23, 2023
Quest Diagnostics Nichols Institute San Juan Capistrano
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing
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Department of Pathology and Laboratory Medicine, Sinai Health System
Significance: Uncertain significance
Review Status: no assertion criteria provided
Collection Method: clinical testing
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Breast-ovarian cancer, familial, susceptibility to, 1 Benign:3
Dec 23, 2003
Breast Cancer Information Core (BIC) (BRCA1)
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing
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Jun 18, 2019
Evidence-based Network for the Interpretation of Germline Mutant Alleles (ENIGMA)
Significance: Benign
Review Status: reviewed by expert panel
Collection Method: curation
Variant allele has low bioinformatic likelihood to encode a missense alteration affecting protein function (Missense prior probability 0.02; http://priors.hci.utah.edu/PRIORS/), AND low bioinformatic likelihood to alter mRNA splicing (splicing prior 0.02; http://priors.hci.utah.edu/PRIORS/), AND minor allele frequency 0.00386 (African), derived from gnomAD v2.1.1 non-cancer (2019-05-13). -
May 28, 2019
Mendelics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing
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Hereditary cancer-predisposing syndrome Benign:3
Apr 20, 2015
Color Diagnostics, LLC DBA Color Health
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing
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Jul 26, 2021
Sema4, Sema4
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: curation
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Nov 18, 2014
Ambry Genetics
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing
This alteration is classified as 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. -
not specified Benign:2
Apr 18, 2014
GeneDx
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing
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. -
May 06, 2015
Eurofins Ntd Llc (ga)
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing
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Hereditary breast ovarian cancer syndrome Benign:2
Nov 01, 2021
Genetics Program, Instituto Nacional de Cancer
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: research
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Feb 02, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing
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Breast and/or ovarian cancer Benign:1
Jun 30, 2023
CHEO Genetics Diagnostic Laboratory, Children's Hospital of Eastern Ontario
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing
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BRCA1-related disorder Benign:1
Sep 08, 2020
PreventionGenetics, part of Exact Sciences
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing
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). -