rs1331918329

Variant names:

• chr17-35119560-C-A
• rs1331918329
• NM_002878.4:c.54G>T

Your query was ambiguous. Multiple possible variants found:

• chr17-35119560-C-A
• chr17-35119560-C-G
• chr17-35119560-C-T

Variant summary

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

The NM_002878.4(RAD51D):​c.54G>T​(p.Gln18His) 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. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another nucleotide change resulting in the same amino acid substitution has been previously reported as Uncertain significance in ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. Q18R) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: RAD51D NM_002878.4 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:2
• Conservation: PhyloP100: 0.782
• Publications: 1 publications found

Genes affected

RAD51D (HGNC:9823): (RAD51 paralog D) The protein encoded by this gene is a member of the RAD51 protein family. RAD51 family members are highly similar to bacterial RecA and Saccharomyces cerevisiae Rad51, which are known to be involved in the homologous recombination and repair of DNA. This protein forms a complex with several other members of the RAD51 family, including RAD51L1, RAD51L2, and XRCC2. The protein complex formed with this protein has been shown to catalyze homologous pairing between single- and double-stranded DNA, and is thought to play a role in the early stage of recombinational repair of DNA. Alternative splicing results in multiple transcript variants. Read-through transcription also exists between this gene and the downstream ring finger and FYVE-like domain containing 1 (RFFL) gene. [provided by RefSeq, Jan 2011]

RAD51D Gene-Disease associations (from GenCC):

• breast-ovarian cancer, familial, susceptibility to, 4

  Inheritance: AD Classification: STRONG, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), Genomics England PanelApp
• hereditary breast ovarian cancer syndrome

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• hereditary breast carcinoma

  Inheritance: AD Classification: LIMITED Submitted by: ClinGen

ENSG00000267618 (HGNC:):

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=0.15400192).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RAD51D	NM_002878.4	c.54G>T	p.Gln18His	missense_variant	Exon 1 of 10	ENST00000345365.11	NP_002869.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RAD51D	ENST00000345365.11	c.54G>T	p.Gln18His	missense_variant	Exon 1 of 10	1	NM_002878.4	ENSP00000338790.6
ENSG00000267618	ENST00000593039.5	c.3+1731G>T		intron_variant	Intron 1 of 6	2		ENSP00000466834.1

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

Hereditary cancer-predisposing syndrome Uncertain:1

Sep 30, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The p.Q18H variant (also known as c.54G>T), located in coding exon 1 of the RAD51D gene, results from a G to T substitution at nucleotide position 54. The glutamine at codon 18 is replaced by histidine, an amino acid with highly similar properties. This amino acid position is not well conserved in available vertebrate species. 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. -

Breast-ovarian cancer, familial, susceptibility to, 4 Uncertain:1

Dec 18, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces glutamine, which is neutral and polar, with histidine, which is basic and polar, at codon 18 of the RAD51D protein (p.Gln18His). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with RAD51D-related conditions. ClinVar contains an entry for this variant (Variation ID: 539862). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be tolerated. 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. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.11
BayesDel_addAF	Benign	-0.17	T
BayesDel_noAF	Benign	-0.49
CADD	Benign	19
DANN	Benign	0.96
DEOGEN2	Benign	0.23	T;T;.;.
Eigen	Benign	-0.69
Eigen_PC	Benign	-0.67
FATHMM_MKL	Benign	0.51	D
LIST_S2	Benign	0.68	.;T;T;T
M_CAP	Benign	0.078	D
MetaRNN	Benign	0.15	T;T;T;T
MetaSVM	Benign	-0.69	T
MutationAssessor	Uncertain	2.2	M;M;M;M
PhyloP100		0.78
PROVEAN	Benign	-1.9	N;N;N;.
REVEL	Benign	0.10
Sift	Benign	0.054	T;T;D;.
Sift4G	Benign	0.098	T;T;D;T
Polyphen		0.90	P;P;B;.
Vest4		0.20
MutPred		0.28		Gain of catalytic residue at E15 (P = 0.0937);Gain of catalytic residue at E15 (P = 0.0937);Gain of catalytic residue at E15 (P = 0.0937);Gain of catalytic residue at E15 (P = 0.0937);
MVP		0.53
MPC		0.081
ClinPred		0.54	D
GERP RS		2.5
PromoterAI		-0.10	Neutral
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.6
Varity_R		0.090
gMVP		0.37

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: rs1331918329; hg19: chr17-33446579;