rs4151033

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_000448.3(RAG1):c.2638G>A(p.Glu880Lys) variant causes a missense change. The variant allele was found at a frequency of 0.00257 in 1,614,146 control chromosomes in the GnomAD database, including 84 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★★).

Frequency

Genomes: 𝑓 0.013 ( 33 hom., cov: 33)

Exomes 𝑓: 0.0015 ( 51 hom. )

Consequence

RAG1
NM_000448.3 missense

Scores

Clinical Significance

Benign reviewed by expert panel B:7

Conservation

PhyloP100: 5.44

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:

RAG2 (HGNC:9832): (recombination activating 2) This gene encodes a protein that is involved in the initiation of V(D)J recombination during B and T cell development. This protein forms a complex with the product of the adjacent recombination activating gene 1, and this complex can form double-strand breaks by cleaving DNA at conserved recombination signal sequences. The recombination activating gene 1 component is thought to contain most of the catalytic activity, while the N-terminal of the recombination activating gene 2 component is thought to form a six-bladed propeller in the active core that serves as a binding scaffold for the tight association of the complex with DNA. A C-terminal plant homeodomain finger-like motif in this protein is necessary for interactions with chromatin components, specifically with histone H3 that is trimethylated at lysine 4. Mutations in this gene cause Omenn syndrome, a form of severe combined immunodeficiency associated with autoimmune-like symptoms. [provided by RefSeq, Jul 2008]

RAG2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.007601857).

BP6

Variant 11-36575942-G-A is Benign according to our data. Variant chr11-36575942-G-A is described in ClinVar as [Benign]. Clinvar id is 138884.Status of the report is reviewed_by_expert_panel, 3 stars.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0129 (1962/152302) while in subpopulation AFR AF= 0.0444 (1846/41564). AF 95% confidence interval is 0.0427. There are 33 homozygotes in gnomad4. There are 930 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

BS2

High Homozygotes in GnomAd at 33 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
RAG1	NM_000448.3 linkuse as main transcript	c.2638G>A	p.Glu880Lys	missense_variant	2/2	ENST00000299440.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
RAG1	ENST00000299440.6 linkuse as main transcript	c.2638G>A	p.Glu880Lys	missense_variant	2/2	1	NM_000448.3	P1	P15918-1

Frequencies

GnomAD3 genomes

AF:

0.0129

AC:

1957

AN:

152184

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0444

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00347

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.000847

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000441

Gnomad OTH

AF:

0.0115

GnomAD3 exomes

AF:

0.00372

AC:

934

AN:

250982

Hom.:

AF XY:

0.00280

AC XY:

380

AN XY:

135622

show subpopulations

Gnomad AFR exome

AF:

0.0458

Gnomad AMR exome

AF:

0.00254

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000653

Gnomad FIN exome

AF:

0.00199

Gnomad NFE exome

AF:

0.000371

Gnomad OTH exome

AF:

0.00245

GnomAD4 exome

AF:

0.00150

AC:

2187

AN:

1461844

Hom.:

Cov.:

AF XY:

0.00132

AC XY:

958

AN XY:

727228

show subpopulations

Gnomad4 AFR exome

AF:

0.0493

Gnomad4 AMR exome

AF:

0.00239

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.0000580

Gnomad4 FIN exome

AF:

0.00148

Gnomad4 NFE exome

AF:

0.000152

Gnomad4 OTH exome

AF:

0.00278

GnomAD4 genome

AF:

0.0129

AC:

1962

AN:

152302

Hom.:

Cov.:

AF XY:

0.0125

AC XY:

930

AN XY:

74476

show subpopulations

Gnomad4 AFR

AF:

0.0444

Gnomad4 AMR

AF:

0.00346

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.000847

Gnomad4 NFE

AF:

0.000441

Gnomad4 OTH

AF:

0.0114

Alfa

AF:

0.00240

Hom.:

Bravo

AF:

0.0147

ESP6500AA

AF:

0.0463

AC:

204

ESP6500EA

AF:

0.000349

AC:

ExAC

AF:

0.00446

AC:

542

Asia WGS

AF:

0.00260

AC:

AN:

3478

EpiCase

AF:

0.000273

EpiControl

AF:

0.000415

ClinVar

Significance: Benign

Submissions summary: Benign:7

Revision: reviewed by expert panel

LINK: link

Submissions by phenotype

not specified

Benign:2

Likely benign, criteria provided, single submitter	clinical testing	Women's Health and Genetics/Laboratory Corporation of America, LabCorp	Jan 26, 2022	- -
Benign, criteria provided, single submitter	clinical testing	GeneDx	Feb 28, 2014	This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Recombinase activating gene 1 deficiency

Benign:1

Benign, reviewed by expert panel

curation

ClinGen Severe Combined Immunodeficiency Variant Curation Expert Panel, ClinGen

Jan 23, 2024

The NM_000448.3:c.2638G>A variant in RAG1 is a missense variant predicted to cause the substitution of Glutamic Acid by Lysine at amino acid 880 (p.Glu880Lys). The filtering allele frequency (the lower threshold of the 95% CI of 3496/75044) of the c.2638G>A variant in RAG1 is 0.04730 for African/African American chromosomes by gnomAD v.4, which is higher than the ClinGen SCID VCEP threshold (>0.00872) for BA1, and therefore meets this criterion (BA1). Additionally, 84 homozygous adults are reported on gnomAD v.4 (BS2_Supporting). In summary, this variant meets the criteria to be classified as Benign for autosomal recessive SCID based on the ACMG/AMP criteria applied, as specified by the ClinGen SCID-VCEP: BA1 and BS2_Supporting. (VCEP specifications version 1). -

Severe combined immunodeficiency, autosomal recessive, T cell-negative, B cell-negative, NK cell-positive

Benign:1

Benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 12, 2018

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Histiocytic medullary reticulosis

Benign:1

Benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 12, 2018

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

Benign:1

Benign, criteria provided, single submitter

clinical testing

Invitae

Jan 31, 2024

- -

not provided

Benign:1

Benign, criteria provided, single submitter

clinical testing

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Sep 22, 2023

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.077

BayesDel_addAF

Benign

-0.11

BayesDel_noAF

Uncertain

0.10

Cadd

Uncertain

Dann

Uncertain

1.0

DEOGEN2

Uncertain

0.71

Eigen

Pathogenic

0.87

Eigen_PC

Pathogenic

0.82

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.95

MetaRNN

Benign

0.0076

MetaSVM

Uncertain

0.035

MutationAssessor

Uncertain

2.6

MutationTaster

Benign

1.0

PrimateAI

Uncertain

0.54

PROVEAN

Benign

-1.6

REVEL

Uncertain

0.58

Sift

Uncertain

0.0010

Sift4G

Uncertain

0.021

Polyphen

1.0

Vest4

0.27

MVP

0.97

MPC

0.78

ClinPred

0.024

GERP RS

5.9

Varity_R

0.30

gMVP

0.59

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