rs749589266

Variant names:

• chr17-61683543-T-A
• rs749589266
• NM_032043.3:c.3503A>T

Your query was ambiguous. Multiple possible variants found:

• chr17-61683543-T-A
• chr17-61683543-T-G

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_032043.3(BRIP1):​c.3503A>T​(p.Lys1168Ile) 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. 15/22 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. K1168N) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 33)
• Consequence: BRIP1 NM_032043.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.513
• Publications: 1 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 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.0959802).

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

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	BRIP1	NM_032043.3	MANE Select	c.3503A>T	p.Lys1168Ile	missense	Exon 20 of 20	NP_114432.2

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	BRIP1	ENST00000259008.7	TSL:1 MANE Select	c.3503A>T	p.Lys1168Ile	missense	Exon 20 of 20	ENSP00000259008.2
	BRIP1	ENST00000682453.1		c.3503A>T	p.Lys1168Ile	missense	Exon 21 of 21	ENSP00000506943.1
	BRIP1	ENST00000683039.1		c.3503A>T	p.Lys1168Ile	missense	Exon 21 of 21	ENSP00000508303.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Hereditary cancer-predisposing syndrome Uncertain:1

May 17, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The p.K1168I variant (also known as c.3503A>T), located in coding exon 19 of the BRIP1 gene, results from an A to T substitution at nucleotide position 3503. The lysine at codon 1168 is replaced by isoleucine, 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. Based on the available evidence, the clinical significance of this variant remains unclear.

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.17
BayesDel_addAF	Benign	-0.10	T
BayesDel_noAF	Benign	-0.38
CADD	Benign	20
DANN	Uncertain	0.99
DEOGEN2	Benign	0.099	T
Eigen	Benign	-0.71
Eigen_PC	Benign	-0.61
FATHMM_MKL	Benign	0.39	N
LIST_S2	Benign	0.66	T
M_CAP	Uncertain	0.090	D
MetaRNN	Benign	0.096	T
MetaSVM	Benign	-0.97	T
MutationAssessor	Benign	0.0	N
PhyloP100		0.51
PrimateAI	Benign	0.25	T
PROVEAN	Benign	-0.98	N
REVEL	Benign	0.063
Sift	Uncertain	0.0050	D
Sift4G	Benign	0.11	T
Polyphen		0.026	B
Vest4		0.22
MutPred		0.33		Loss of ubiquitination at K1168 (P = 0.0148)
MVP		0.68
MPC		0.32
ClinPred		0.16	T
GERP RS		2.3
Varity_R		0.14
gMVP		0.19

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

Other links and lift over

dbSNP: rs749589266; hg19: chr17-59760904;