chr17-61859796-C-A

Variant names:

• chr17-61859796-C-A
• rs372581879
• NM_032043.3:c.205G>T

Variant summary

Our verdict is Uncertain significance. The variant received 5 ACMG points: 5P and 0B. PM1 PM2 PP3

The NM_032043.3(BRIP1):​c.205G>T​(p.Gly69Trp) variant causes a missense, splice region change. The variant was absent in control chromosomes in GnomAD project. 2/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G69R) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: BRIP1 NM_032043.3 missense, splice_region
• Scores: Splicing: ADA: 0.9969
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 6.70
• Publications: 0 publications found

Genes affected

BRIP1 (HGNC:20473): (BRCA1 interacting helicase 1) The protein encoded by this gene is a member of the RecQ DEAH helicase family and interacts with the BRCT repeats of breast cancer, type 1 (BRCA1). The bound complex is important in the normal double-strand break repair function of breast cancer, type 1 (BRCA1). This gene may be a target of germline cancer-inducing mutations. [provided by RefSeq, Jul 2008]

BRIP1 Gene-Disease associations (from GenCC):

• familial ovarian cancer

  Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
• Fanconi anemia

  Inheritance: AR Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, Illumina
• Fanconi anemia complementation group J

  Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P, ClinGen, Ambry Genetics
• hereditary breast carcinoma

  Inheritance: AD Classification: STRONG, LIMITED, NO_KNOWN Submitted by: ClinGen, Ambry Genetics, Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
• colorectal adenoma

  Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

ACMG classification

Our verdict: Uncertain_significance. The variant received 5 ACMG points.

• PM1: In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 3 benign, 36 uncertain in NM_032043.3
• PM2: Very rare variant in population databases, with high coverage
• PP3: Splicing predictors support a deleterious effect. Scorers claiming Pathogenic: dbscSNV1_ADA, dbscSNV1_RF. No scorers claiming Uncertain. Scorers claiming Benign: max_spliceai.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_032043.3. 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
	BRIP1	NM_032043.3	MANE Select	c.205G>T	p.Gly69Trp	missense splice_region	Exon 3 of 20	NP_114432.2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	BRIP1	ENST00000259008.7	TSL:1 MANE Select	c.205G>T	p.Gly69Trp	missense splice_region	Exon 3 of 20	ENSP00000259008.2
	BRIP1	ENST00000682453.1		c.205G>T	p.Gly69Trp	missense splice_region	Exon 4 of 21	ENSP00000506943.1
	BRIP1	ENST00000683039.1		c.205G>T	p.Gly69Trp	missense splice_region	Exon 4 of 21	ENSP00000508303.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 28

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions as Germline

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Familial cancer of breast;C1836860:Fanconi anemia complementation group J (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.18
BayesDel_addAF	Uncertain	0.084	D
BayesDel_noAF	Benign	-0.12
CADD	Pathogenic	33
DANN	Benign	0.95
DEOGEN2	Benign	0.21	T
Eigen	Uncertain	0.54
Eigen_PC	Uncertain	0.60
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Benign	0.77	T
M_CAP	Uncertain	0.23	D
MetaRNN	Uncertain	0.45	T
MetaSVM	Benign	-0.52	T
MutationAssessor	Pathogenic	3.2	M
PhyloP100		6.7
PrimateAI	Benign	0.41	T
PROVEAN	Benign	-1.6	N
REVEL	Uncertain	0.35
Sift	Uncertain	0.013	D
Sift4G	Uncertain	0.012	D
Polyphen		0.95	P
Vest4		0.40
MutPred		0.46		Gain of catalytic residue at L67 (P = 0.0032)
MVP		0.92
MPC		0.67
ClinPred		0.93	D
GERP RS		5.3
Varity_R		0.10
gMVP		0.43

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Pathogenic	1.0
dbscSNV1_RF	Pathogenic	0.87
SpliceAI score (max)		0.17		Details are displayed if max score is > 0.2

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

Other links and lift over

dbSNP: rs372581879; hg19: chr17-59937157;