11-36575942-G-A

Variant names:

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BS2_SupportingBA1

This summary comes from the ClinGen Evidence Repository: 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). LINK:https://erepo.genome.network/evrepo/ui/classification/CA293052/MONDO:0000572/123

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:8

Conservation

PhyloP100: 5.44

Publications

7 publications found

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 Gene-Disease associations (from GenCC):

Omenn syndrome
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Genomics England PanelApp, G2P, Orphanet
recombinase activating gene 2 deficiency
Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
severe combined immunodeficiency, autosomal recessive, T cell-negative, B cell-negative, NK cell-positive
Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet

RAG2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -9 ACMG points.

BS2

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

BA1

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

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RAG1	NM_000448.3 link	c.2638G>A	p.Glu880Lys	missense_variant	Exon 2 of 2	ENST00000299440.6	NP_000439.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RAG1	ENST00000299440.6 link	c.2638G>A	p.Glu880Lys	missense_variant	Exon 2 of 2	1	NM_000448.3	ENSP00000299440.5		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

GnomAD2 exomes

AF:

0.00372

AC:

934

AN:

250982

AF XY:

0.00280

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 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

African (AFR)

AF:

0.0493

AC:

1650

AN:

33480

American (AMR)

AF:

0.00239

AC:

107

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000580

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00148

AC:

AN:

53384

Middle Eastern (MID)

AF:

0.00139

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.000152

AC:

169

AN:

1111998

Other (OTH)

AF:

0.00278

AC:

168

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.489

Heterozygous variant carriers

150

300

449

599

749

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

104

156

208

260

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0129

AC:

1962

AN:

152302

Hom.:

Cov.:

AF XY:

0.0125

AC XY:

930

AN XY:

74476

show subpopulations

African (AFR)

AF:

0.0444

AC:

1846

AN:

41564

American (AMR)

AF:

0.00346

AC:

AN:

15296

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5174

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.000847

AC:

AN:

10620

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000441

AC:

AN:

68030

Other (OTH)

AF:

0.0114

AC:

AN:

2110

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.503

Heterozygous variant carriers

107

215

322

430

537

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

120

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00455

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:8

Revision: reviewed by expert panel

LINK: link

Submissions by phenotype

not specified

Benign:2

Feb 28, 2014

GeneDx

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

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. -

Jan 26, 2022

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not provided

Benign:2

Breakthrough Genomics, Breakthrough Genomics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:not provided

- -

Sep 22, 2023

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Recombinase activating gene 1 deficiency

Benign:1

Jan 23, 2024

ClinGen Severe Combined Immunodeficiency Variant Curation Expert Panel, ClinGen

Significance:Benign

Review Status:reviewed by expert panel

Collection Method:curation

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

Jan 12, 2018

Illumina Laboratory Services, Illumina

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

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

Jan 12, 2018

Illumina Laboratory Services, Illumina

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

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

Benign:1

Feb 03, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

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

(source)

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

PhyloP100

5.4

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

Mutation Taster

=53/47

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over