Variant 11-36573344-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 1P and 0B. PM2_Supporting

This summary comes from the ClinGen Evidence Repository: The NM_000448.3:c.40G>A variant in RAG1 is a missense variant predicted to cause a substitution of alanine by threonine at amino acid 14 (p.Ala14Thr). The highest population minor allele frequency in gnomAD v2.1.1 is 0.000008797 (1/113676 alleles) in the European (non-Finnish) population, which is lower than the SCID-VCEP threshold (<0.000102) for PM2_Supporting. No homozygous individual has been observed in the gnomAD v2.1.1(PM2_Supporting). This variant has not been reported in the literature in individuals with SCID. In ClinVar, the variant was reported in one affected individual who didn't have a second RAG1 variant, and the variant was classified as a Variant of Uncertain Significance (Invitae, SCV002113580.2). There is no functional evidence for this variant. Due to insufficient evidence, this variant is classified as a variant of uncertain significance for SCID. ACMG/AMP criteria applied, as specified by the ClinGen SCID-VCEP: PM2_supporting (SCID VCEP specifications version 1.0). LINK:https://erepo.genome.network/evrepo/ui/classification/CA5949893/MONDO:0000572/123

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

RAG1
NM_000448.3 missense

Scores

Clinical Significance

Uncertain significance reviewed by expert panel U:3

Conservation

PhyloP100: 1.25

Variant links:

Genes affected

RAG1 (HGNC:9831): (recombination activating 1) The protein encoded by this gene is involved in activation of immunoglobulin V-D-J recombination. The encoded protein is involved in recognition of the DNA substrate, but stable binding and cleavage activity also requires RAG2. Defects in this gene can be the cause of several diseases. [provided by RefSeq, Jul 2008]

RAG1 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

For more information check the summary or visit ClinGen Evidence Repository.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
RAG1	NM_000448.3 linkuse as main transcript	c.40G>A	p.Ala14Thr	missense_variant	2/2	ENST00000299440.6	NP_000439.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
RAG1	ENST00000299440.6 linkuse as main transcript	c.40G>A	p.Ala14Thr	missense_variant	2/2	1	NM_000448.3	ENSP00000299440.5		P15918-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251368

Hom.:

AF XY:

0.00000736

AC XY:

AN XY:

135862

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000880

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461888

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727246

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:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

8.99e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000756

ExAC

AF:

0.00000824

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:3

Revision: reviewed by expert panel

LINK: link

Submissions by phenotype

Recombinase activating gene 1 deficiency

Uncertain:1

Uncertain significance, reviewed by expert panel

curation

ClinGen Severe Combined Immunodeficiency Variant Curation Expert Panel, ClinGen

Apr 23, 2024

The NM_000448.3:c.40G>A variant in RAG1 is a missense variant predicted to cause a substitution of alanine by threonine at amino acid 14 (p.Ala14Thr). The highest population minor allele frequency in gnomAD v2.1.1 is 0.000008797 (1/113676 alleles) in the European (non-Finnish) population, which is lower than the SCID-VCEP threshold (<0.000102) for PM2_Supporting. No homozygous individual has been observed in the gnomAD v2.1.1(PM2_Supporting). This variant has not been reported in the literature in individuals with SCID. In ClinVar, the variant was reported in one affected individual who didn't have a second RAG1 variant, and the variant was classified as a Variant of Uncertain Significance (Invitae, SCV002113580.2). There is no functional evidence for this variant. Due to insufficient evidence, this variant is classified as a variant of uncertain significance for SCID. ACMG/AMP criteria applied, as specified by the ClinGen SCID-VCEP: PM2_supporting (SCID VCEP specifications version 1.0). -

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jun 27, 2023

The c.40G>A (p.A14T) alteration is located in exon 2 (coding exon 1) of the RAG1 gene. This alteration results from a G to A substitution at nucleotide position 40, causing the alanine (A) at amino acid position 14 to be replaced by a threonine (T). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Severe combined immunodeficiency, autosomal recessive, T cell-negative, B cell-negative, NK cell-positive;C2673536:Combined immunodeficiency with skin granulomas

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Mar 19, 2022

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. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt RAG1 protein function. This variant has not been reported in the literature in individuals affected with RAG1-related conditions. This variant is present in population databases (rs765396585, gnomAD 0.0009%). This sequence change replaces alanine, which is neutral and non-polar, with threonine, which is neutral and polar, at codon 14 of the RAG1 protein (p.Ala14Thr). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.078

BayesDel_addAF

Benign

-0.073

BayesDel_noAF

Benign

-0.34

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.12

Eigen

Benign

-0.26

Eigen_PC

Benign

-0.11

FATHMM_MKL

Benign

0.26

LIST_S2

Benign

0.76

M_CAP

Benign

0.013

MetaRNN

Benign

0.12

MetaSVM

Benign

-0.75

MutationAssessor

Benign

1.7

PrimateAI

Benign

0.42

PROVEAN

Benign

0.010

REVEL

Benign

0.14

Sift

Benign

0.051

Sift4G

Uncertain

0.055

Polyphen

0.0030

Vest4

0.25

MutPred

0.13

Gain of glycosylation at A14 (P = 0.056);

MVP

0.87

MPC

0.20

ClinPred

0.18

GERP RS

5.2

Varity_R

0.088

gMVP

0.26

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