17-61780299-T-A

Variant names:

• chr17-61780299-T-A
• rs765314472
• NM_032043.3:c.1897A>T

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_032043.3(BRIP1):​c.1897A>T​(p.Ile633Phe) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. I633L) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: BRIP1 NM_032043.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 5.52
• 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: G2P, ClinGen, Ambry Genetics, Labcorp Genetics (formerly Invitae)
• hereditary breast carcinoma

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

  Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
BRIP1	NM_032043.3	c.1897A>T	p.Ile633Phe	missense_variant	Exon 13 of 20	ENST00000259008.7	NP_114432.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
BRIP1	ENST00000259008.7	c.1897A>T	p.Ile633Phe	missense_variant	Exon 13 of 20	1	NM_032043.3	ENSP00000259008.2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 34

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.29
BayesDel_addAF	Benign	-0.053	T
BayesDel_noAF	Benign	-0.31
CADD	Benign	23
DANN	Uncertain	0.98
DEOGEN2	Benign	0.22	T;.
Eigen	Benign	0.038
Eigen_PC	Benign	0.023
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.91	D;D
M_CAP	Benign	0.041	D
MetaRNN	Uncertain	0.59	D;D
MetaSVM	Benign	-1.0	T
MutationAssessor	Uncertain	2.3	M;M
PhyloP100		5.5
PrimateAI	Benign	0.41	T
PROVEAN	Uncertain	-2.9	D;.
REVEL	Benign	0.19
Sift	Uncertain	0.0030	D;.
Sift4G	Benign	0.096	T;T
Polyphen		0.95	P;.
Vest4		0.70
MutPred		0.35		Gain of catalytic residue at I633 (P = 0.0067);Gain of catalytic residue at I633 (P = 0.0067);
MVP		0.29
MPC		0.84
ClinPred		0.96	D
GERP RS		3.3
Varity_R		0.53
gMVP		0.68
Mutation Taster		=49/51	disease causing

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.090		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: rs765314472; hg19: chr17-59857660; COSMIC: COSV52008781; COSMIC: COSV52008781;