rs80357049

Variant names:

• chr17-43092449-G-A
• rs80357049
• NM_007294.4:c.3082C>T
• BRCA1 p.Arg1028Cys

Your query was ambiguous. Multiple possible variants found:

• chr17-43092449-G-A
• chr17-43092449-G-C
• chr17-43092449-G-T

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BS2_Supporting BP1_Strong BS3 BP5_Strong

This summary comes from the ClinGen Evidence Repository: The c.3082C>T variant in BRCA1 is a missense variant predicted to cause substitution of Arginine by Cysteine at amino acid 1028 (p.Arg1028Cys). This variant is present in gnomAD v2.1 (exomes only, non-cancer subset) or gnomAD v3.1 (non-cancer subset) but is below the ENIGMA BRCA1/2 VCEP threshold >0.00002 for BS1_Supporting (PM2_Supporting, BS1, and BA1 are not met). This missense variant is located outside of a key functional domain and was not predicted to alter mRNA splicing using the SpliceAI predictor (score 0.01, score threshold < 0.1) (BP1_Strong met). Reported by one calibrated study to exhibit protein function similar to benign control variants (PMID:32546644) (BS3 met). This variant has been observed in one individual with features considered inconsistent with an FA-associated phenotype, variant is homozygous (total score 1 point) (BS2_Supporting met; PMID:29435075). Multifactorial likelihood ratio analysis using clinically calibrated data produced a combined LR for this variant of 0.0009 (based on Cosegregation LR=0.131; Pathology LR=0.056; Co-occurrence LR= 1.527; Family History LR= 0.081), below the thresholds for very strong benign evidence (LR <0.00285) (BP5_Very strong met; PMID:31131967). In summary, this variant meets the criteria to be classified as a Benign variant for BRCA1-related cancer predisposition based on the ACMG/AMP criteria applied as specified by the ENIGMA BRCA1/2 VCEP (BP1_Strong, BS3, BS2_Supporting, BP5_Very strong). LINK:https://erepo.genome.network/evrepo/ui/classification/CA002019/MONDO:0011450/092

• Frequency:
  • Genomes: 𝑓 0.000013 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000034 (0 hom.)
• Consequence: BRCA1 NM_007294.4 missense
• Clinical Significance: Benign reviewed by expert panel U:3 B:10
• Conservation: PhyloP100: 1.68
• Publications: 19 publications found

Genes affected

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]

BRCA1 Gene-Disease associations (from GenCC):

• BRCA1-related cancer predisposition

  Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
• breast-ovarian cancer, familial, susceptibility to, 1

  Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae), Ambry Genetics
• Fanconi anemia, complementation group S

  Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE, LIMITED Submitted by: G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics, ClinGen
• pancreatic cancer, susceptibility to, 4

  Inheritance: AD Classification: MODERATE Submitted by: Genomics England PanelApp
• hereditary breast ovarian cancer syndrome

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• Fanconi anemia

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Specifications for BRCA1 are available in the ClinGen Criteria Specification Registry and recommended for reference when assigning criteria.

Our verdict: Benign. The variant received -13 ACMG points.

• BP1: For more information check the summary or visit ClinGen Evidence Repository.
• BP5: For more information check the summary or visit ClinGen Evidence Repository.
• BS2: For more information check the summary or visit ClinGen Evidence Repository.
• BS3: For more information check the summary or visit ClinGen Evidence Repository.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_007294.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	BRCA1	NM_007294.4	MANE Select	c.3082C>T	p.Arg1028Cys	missense	Exon 10 of 23	NP_009225.1	P38398-1
	BRCA1	NM_001407581.1		c.3082C>T	p.Arg1028Cys	missense	Exon 10 of 24	NP_001394510.1	A0A2R8Y7V5
	BRCA1	NM_001407582.1		c.3082C>T	p.Arg1028Cys	missense	Exon 10 of 24	NP_001394511.1	A0A2R8Y7V5

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	BRCA1	ENST00000357654.9	TSL:1 MANE Select	c.3082C>T	p.Arg1028Cys	missense	Exon 10 of 23	ENSP00000350283.3	P38398-1
	BRCA1	ENST00000471181.7	TSL:1	c.3082C>T	p.Arg1028Cys	missense	Exon 10 of 24	ENSP00000418960.2	P38398-7
	BRCA1	ENST00000470026.6	TSL:1	c.3082C>T	p.Arg1028Cys	missense	Exon 10 of 23	ENSP00000419274.2	P38398-1

Frequencies

GnomAD3 genomes AF: 0.0000132 AC: 2 AN: 151942 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000294

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000199 AC: 5 AN: 251110 AF XY: 0.0000147

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000264

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000335 AC: 49 AN: 1461676 Hom.: 0 Cov.: 49 AF XY: 0.0000275 AC XY: 20 AN XY: 727136

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.0000224 AC: 1 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26132

East Asian (EAS) AF: 0.00 AC: 0 AN: 39682

South Asian (SAS) AF: 0.0000580 AC: 5 AN: 86254

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53288

Middle Eastern (MID) AF: 0.000173 AC: 1 AN: 5768

European-Non Finnish (NFE) AF: 0.0000360 AC: 40 AN: 1111960

Other (OTH) AF: 0.0000331 AC: 2 AN: 60388

GnomAD4 genome AF: 0.0000132 AC: 2 AN: 151942 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 74196

African (AFR) AF: 0.00 AC: 0 AN: 41354

American (AMR) AF: 0.00 AC: 0 AN: 15240

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3468

East Asian (EAS) AF: 0.00 AC: 0 AN: 5190

South Asian (SAS) AF: 0.00 AC: 0 AN: 4818

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10546

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 312

European-Non Finnish (NFE) AF: 0.0000294 AC: 2 AN: 68008

Other (OTH) AF: 0.00 AC: 0 AN: 2094

Alfa AF: 0.000189 Hom.: 0

Bravo AF: 0.0000227

EpiCase AF: 0.0000545

EpiControl AF: 0.0000593

ClinVar

ClinVar submissions

Significance: Benign

Revision: reviewed by expert panel

Pathogenic	VUS	Benign	Condition
-	2	2	Breast-ovarian cancer, familial, susceptibility to, 1 (4)
-	-	3	not specified (3)
-	-	2	Hereditary cancer-predisposing syndrome (2)
-	-	1	BRCA1-related cancer predisposition (1)
-	1	-	Fanconi anemia, complementation group S (1)
-	-	1	Hereditary breast ovarian cancer syndrome (1)
-	-	1	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.080
BayesDel_addAF	Benign	-0.096	T
BayesDel_noAF	Benign	-0.19
CADD	Benign	21
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.46	T
Eigen	Benign	-0.26
Eigen_PC	Benign	-0.085
FATHMM_MKL	Benign	0.75	D
LIST_S2	Uncertain	0.87	D
M_CAP	Benign	0.069	D
MetaRNN	Benign	0.17	T
MetaSVM	Benign	-0.88	T
MutationAssessor	Benign	-0.34	N
PhyloP100		1.7
PrimateAI	Benign	0.17	T
PROVEAN	Uncertain	-2.9	D
REVEL	Uncertain	0.34
Sift	Benign	0.11	T
Sift4G	Uncertain	0.051	T
Varity_R		0.13
gMVP		0.16
Mutation Taster		=85/15	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.0		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

dbSNP: rs80357049; hg19: chr17-41244466; COSMIC: COSV58788564; COSMIC: COSV58788564;