NM_000448.3:c.101G>A

Variant names:

• chr11-36573405-G-A
• rs377307948
• NM_000448.3:c.101G>A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_000448.3(RAG1):​c.101G>A​(p.Arg34Gln) variant causes a missense change. The variant allele was found at a frequency of 0.000052 in 1,613,906 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. R34R) has been classified as Likely benign.

• Frequency:
  • Genomes: 𝑓 0.000079 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000049 (0 hom.)
• Consequence: RAG1 NM_000448.3 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:2
• Conservation: PhyloP100: 5.92

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.24644262).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RAG1	NM_000448.3	c.101G>A	p.Arg34Gln	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	c.101G>A	p.Arg34Gln	missense_variant	Exon 2 of 2	1	NM_000448.3	ENSP00000299440.5

Frequencies

GnomAD3 genomes AF: 0.0000789 AC: 12 AN: 152014 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.000145

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000131

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000588

Gnomad OTH AF: 0.00

GnomAD3 exomes AF: 0.0000876 AC: 22 AN: 251108 Hom.: 0 AF XY: 0.0000884 AC XY: 12 AN XY: 135752

Gnomad AFR exome AF: 0.000124

Gnomad AMR exome AF: 0.000347

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.0000653

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000352

Gnomad OTH exome AF: 0.000327

GnomAD4 exome AF: 0.0000493 AC: 72 AN: 1461892 Hom.: 0 Cov.: 30 AF XY: 0.0000468 AC XY: 34 AN XY: 727248

Gnomad4 AFR exome AF: 0.0000299

Gnomad4 AMR exome AF: 0.000313

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000348

Gnomad4 FIN exome AF: 0.0000187

Gnomad4 NFE exome AF: 0.0000450

Gnomad4 OTH exome AF: 0.0000331

GnomAD4 genome AF: 0.0000789 AC: 12 AN: 152014 Hom.: 0 Cov.: 32 AF XY: 0.0000539 AC XY: 4 AN XY: 74258

Gnomad4 AFR AF: 0.000145

Gnomad4 AMR AF: 0.000131

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000588

Gnomad4 OTH AF: 0.00

Alfa AF: 0.0000322 Hom.: 0

Bravo AF: 0.0000604

TwinsUK AF: 0.000809 AC: 3

ALSPAC AF: 0.00 AC: 0

ESP6500AA AF: 0.000227 AC: 1

ESP6500EA AF: 0.00 AC: 0

ExAC AF: 0.000115 AC: 14

EpiCase AF: 0.000218

EpiControl AF: 0.000119

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

Severe combined immunodeficiency, autosomal recessive, T cell-negative, B cell-negative, NK cell-positive;C1835931:Combined immunodeficiency due to partial RAG1 deficiency;C2673536:Combined immunodeficiency with skin granulomas;C2700553:Histiocytic medullary reticulosis Uncertain:1

Apr 05, 2022

Fulgent Genetics, Fulgent Genetics

Significance: Uncertain significance

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 Uncertain:1

May 03, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces arginine, which is basic and polar, with glutamine, which is neutral and polar, at codon 34 of the RAG1 protein (p.Arg34Gln). This variant is present in population databases (rs377307948, gnomAD 0.02%). This variant has not been reported in the literature in individuals affected with RAG1-related conditions. ClinVar contains an entry for this variant (Variation ID: 536958). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). 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. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.27
BayesDel_addAF	Benign	-0.19	T
BayesDel_noAF	Benign	-0.22
CADD	Pathogenic	28
DANN	Pathogenic	1.0
DEOGEN2	Benign	0.28	T
Eigen	Uncertain	0.64
Eigen_PC	Pathogenic	0.67
FATHMM_MKL	Uncertain	0.91	D
LIST_S2	Pathogenic	0.98	D
M_CAP	Benign	0.063	D
MetaRNN	Benign	0.25	T
MetaSVM	Uncertain	-0.28	T
MutationAssessor	Uncertain	2.1	M
PrimateAI	Benign	0.35	T
PROVEAN	Benign	-0.33	N
REVEL	Uncertain	0.44
Sift	Uncertain	0.0010	D
Sift4G	Uncertain	0.0040	D
Polyphen		0.98	D
Vest4		0.31
MVP		0.93
MPC		0.74
ClinPred		0.16	T
GERP RS		5.1
Varity_R		0.27
gMVP		0.44

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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: rs377307948; hg19: chr11-36594955; COSMIC: COSV55025013; COSMIC: COSV55025013;