Genetic Variant NM_001099218.3:c.3449T>C (chr2-17510835-A-G) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001099218.3(RAD51AP2):c.3449T>C(p.Met1150Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000251 in 1,594,164 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

RAD51AP2
NM_001099218.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.49

Variant links:

Genes affected

RAD51AP2 (HGNC:34417): (RAD51 associated protein 2) Predicted to enable double-stranded DNA binding activity and single-stranded DNA binding activity. Predicted to be involved in double-strand break repair via homologous recombination and interstrand cross-link repair. Part of protein-containing complex. [provided by Alliance of Genome Resources, Apr 2022]

RAD51AP2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.061223507).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RAD51AP2	NM_001099218.3 link	c.3449T>C	p.Met1150Thr	missense_variant	Exon 3 of 3	ENST00000399080.3	NP_001092688.1	Q09MP3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RAD51AP2	ENST00000399080.3 link	c.3449T>C	p.Met1150Thr	missense_variant	Exon 3 of 3	1	NM_001099218.3	ENSP00000382030.2		Q09MP3

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152176

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000208

AC:

AN:

1441988

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

716274

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000366

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152176

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74340

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

May 23, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.3449T>C (p.M1150T) alteration is located in exon 3 (coding exon 3) of the RAD51AP2 gene. This alteration results from a T to C substitution at nucleotide position 3449, causing the methionine (M) at amino acid position 1150 to be replaced by a threonine (T). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.37

BayesDel_addAF

Benign

-0.17

BayesDel_noAF

Benign

-0.48

CADD

Benign

9.3

DANN

Benign

0.72

DEOGEN2

Benign

0.0069

Eigen

Benign

-0.77

Eigen_PC

Benign

-0.70

FATHMM_MKL

Benign

0.20

LIST_S2

Benign

0.31

M_CAP

Benign

0.0085

MetaRNN

Benign

0.061

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.69

PrimateAI

Uncertain

0.50

PROVEAN

Benign

-0.92

REVEL

Benign

0.077

Sift

Benign

0.11

Sift4G

Uncertain

0.032

Polyphen

0.021

Vest4

0.38

MutPred

0.28

Loss of helix (P = 0.0444);

MVP

0.095

MPC

0.073

ClinPred

0.054

GERP RS

3.2

Varity_R

0.085

gMVP

0.34

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over