17-35101035-G-A

Position:

• chr17-35101035-G-A

Variant summary

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

The NM_002878.4(RAD51D):​c.905C>T​(p.Pro302Leu) variant causes a missense, splice region change. The variant was absent in control chromosomes in GnomAD project. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: RAD51D NM_002878.4 missense, splice_region
• Scores: Splicing: ADA: 0.0008305
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.03

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]

RAD51L3-RFFL (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

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

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
RAD51D	NM_002878.4	c.905C>T	p.Pro302Leu	missense_variant, splice_region_variant	10/10	ENST00000345365.11
RAD51L3-RFFL	NR_037714.1	n.655+166C>T		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
RAD51D	ENST00000345365.11	c.905C>T	p.Pro302Leu	missense_variant, splice_region_variant	10/10	1	NM_002878.4	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

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

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Aug 16, 2017

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. Algorithms developed to predict the effect of missense changes on protein structure and function do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Benign"; Align-GVGD: "Class C35"). This variant has not been reported in the literature in individuals with RAD51D-related disease. This variant is not present in population databases (ExAC no frequency). This sequence change replaces proline with leucine at codon 302 of the RAD51D protein (p.Pro302Leu). The proline residue is highly conserved and there is a moderate physicochemical difference between proline and leucine. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.23
BayesDel_addAF	Uncertain	0.023	T
BayesDel_noAF	Benign	-0.20
CADD	Uncertain	25
DANN	Benign	0.79
DEOGEN2	Uncertain	0.46	T;T;.;.;.
Eigen	Uncertain	0.44
Eigen_PC	Uncertain	0.35
FATHMM_MKL	Uncertain	0.94	D
LIST_S2	Uncertain	0.93	.;D;D;D;D
M_CAP	Uncertain	0.12	D
MetaRNN	Uncertain	0.62	D;D;D;D;D
MetaSVM	Uncertain	-0.058	T
MutationAssessor	Benign	2.0	M;M;.;.;.
MutationTaster	Benign	1.0	D;D;D;D;D;D
PROVEAN	Uncertain	-4.0	D;.;.;.;.
REVEL	Uncertain	0.58
Sift	Uncertain	0.0030	D;.;.;.;.
Sift4G	Uncertain	0.011	D;D;D;D;D
Polyphen		1.0	D;D;D;.;.
Vest4		0.30
MutPred		0.72		Gain of MoRF binding (P = 0.0446);Gain of MoRF binding (P = 0.0446);.;.;.;
MVP		0.91
MPC		0.13
ClinPred		0.98	D
GERP RS		4.2
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.13
gMVP		0.61

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.00083
dbscSNV1_RF	Benign	0.014
SpliceAI score (max)		0.15		Details are displayed if max score is > 0.2

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

Publications

LitVar

Other links and lift over

dbSNP: rs1555567003; hg19: chr17-33428054;