rs4988347

Variant names:

• chr17-61847144-A-C
• NM_032043.3:c.584T>G

Your query was ambiguous. Multiple possible variants found:

• chr17-61847144-A-C
• chr17-61847144-A-G
• chr17-61847144-A-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_032043.3(BRIP1):​c.584T>G​(p.Leu195Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. 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. L195P) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: BRIP1 NM_032043.3 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:2
• Conservation: PhyloP100: 0.364

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.12044215).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
BRIP1	NM_032043.3	c.584T>G	p.Leu195Arg	missense_variant	Exon 6 of 20	ENST00000259008.7	NP_114432.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
BRIP1	ENST00000259008.7	c.584T>G	p.Leu195Arg	missense_variant	Exon 6 of 20	1	NM_032043.3	ENSP00000259008.2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

Familial cancer of breast;C1836860:Fanconi anemia complementation group J Uncertain:1

Nov 03, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces leucine, which is neutral and non-polar, with arginine, which is basic and polar, at codon 195 of the BRIP1 protein (p.Leu195Arg). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with BRIP1-related conditions. ClinVar contains an entry for this variant (Variation ID: 1750074). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt BRIP1 protein function with a negative predictive value of 95%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Hereditary cancer-predisposing syndrome Uncertain:1

Apr 05, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The p.L195R variant (also known as c.584T>G), located in coding exon 5 of the BRIP1 gene, results from a T to G substitution at nucleotide position 584. The leucine at codon 195 is replaced by arginine, an amino acid with dissimilar properties. This amino acid position is conserved. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.071
BayesDel_addAF	Benign	-0.13	T
BayesDel_noAF	Benign	-0.43
CADD	Benign	3.2
DANN	Benign	0.31
DEOGEN2	Benign	0.12	T;.
Eigen	Benign	-0.91
Eigen_PC	Benign	-0.88
FATHMM_MKL	Benign	0.33	N
LIST_S2	Benign	0.51	T;T
M_CAP	Benign	0.044	D
MetaRNN	Benign	0.12	T;T
MetaSVM	Benign	-0.85	T
MutationAssessor	Uncertain	2.2	M;M
PrimateAI	Benign	0.33	T
PROVEAN	Benign	-0.74	N;.
REVEL	Benign	0.13
Sift	Benign	0.41	T;.
Sift4G	Benign	0.63	T;T
Polyphen		0.0	B;.
Vest4		0.25
MutPred		0.38		Gain of loop (P = 0.0166);Gain of loop (P = 0.0166);
MVP		0.76
MPC		0.24
ClinPred		0.17	T
GERP RS		-0.011
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.041
gMVP		0.39

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

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr17-59924505;