NM_000448.3:c.78A>G

Variant names:

• chr11-36573382-A-G
• rs1590701535
• NM_000448.3:c.78A>G

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 2P and 7B. PM2 BP4_Strong BP6_Moderate BP7

The NM_000448.3(RAG1):​c.78A>G​(p.Ser26Ser) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,892 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 Likely benign (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: RAG1 NM_000448.3 synonymous
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -0.101
• Publications: 0 publications found

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 Gene-Disease associations (from GenCC):

• immunodeficiency disease

  Inheritance: AR Classification: DEFINITIVE Submitted by: Ambry Genetics
• Omenn syndrome

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Genomics England PanelApp, G2P, Ambry Genetics, Orphanet
• recombinase activating gene 1 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: Ambry Genetics, Labcorp Genetics (formerly Invitae), Orphanet
• combined immunodeficiency due to partial RAG1 deficiency

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_benign. The variant received -5 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.56).
• BP6: Variant 11-36573382-A-G is Benign according to our data. Variant chr11-36573382-A-G is described in ClinVar as Likely_benign. ClinVar VariationId is 757282.Status of the report is criteria_provided_single_submitter, 1 stars.
• BP7: Synonymous conserved (PhyloP=-0.101 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000448.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RAG1	NM_000448.3	MANE Select	c.78A>G	p.Ser26Ser	synonymous	Exon 2 of 2	NP_000439.2	P15918-1
	RAG1	NM_001377277.1		c.78A>G	p.Ser26Ser	synonymous	Exon 5 of 5	NP_001364206.1	P15918-1
	RAG1	NM_001377278.1		c.78A>G	p.Ser26Ser	synonymous	Exon 4 of 4	NP_001364207.1	P15918-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RAG1	ENST00000299440.6	TSL:1 MANE Select	c.78A>G	p.Ser26Ser	synonymous	Exon 2 of 2	ENSP00000299440.5	P15918-1
	RAG1	ENST00000534663.1	TSL:1	n.78A>G		non_coding_transcript_exon	Exon 8 of 10	ENSP00000434610.1	P15918-2
	RAG1	ENST00000697713.1		c.78A>G	p.Ser26Ser	synonymous	Exon 3 of 3	ENSP00000513411.1	P15918-1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461892 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 727246

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53420

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1112010

Other (OTH) AF: 0.0000166 AC: 1 AN: 60396

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions

Significance: Likely benign

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	-	1	Severe combined immunodeficiency, autosomal recessive, T cell-negative, B cell-negative, NK cell-positive;C2673536:Combined immunodeficiency with skin granulomas (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.56
CADD	Benign	5.2
DANN	Benign	0.64
PhyloP100		-0.10

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

Other links and lift over

dbSNP: rs1590701535; hg19: chr11-36594932;