NM_003401.5:c.147A>G

Variant names:

• chr5-83111035-A-G
• NM_003401.5:c.147A>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_003401.5(XRCC4):​c.147A>G​(p.Glu49Glu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000688 in 1,453,376 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: 33)
  • Exomes 𝑓: 6.9e-7 (0 hom.)
• Consequence: XRCC4 NM_003401.5 synonymous
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 2.01
• Publications: 0 publications found

Genes affected

XRCC4 (HGNC:12831): (X-ray repair cross complementing 4) The protein encoded by this gene functions together with DNA ligase IV and the DNA-dependent protein kinase in the repair of DNA double-strand breaks. This protein plays a role in both non-homologous end joining and the completion of V(D)J recombination. Mutations in this gene can cause short stature, microcephaly, and endocrine dysfunction (SSMED). Alternate transcript variants such as NM_022406 are unlikely to be expressed in some individuals due to a polymorphism (rs1805377) in the last splice acceptor site. [provided by RefSeq, Oct 2019]

XRCC4 Gene-Disease associations (from GenCC):

• short stature, microcephaly, and endocrine dysfunction

  Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae), Laboratory for Molecular Medicine
• microcephalic primordial dwarfism-insulin resistance syndrome

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• hereditary nonpolyposis colon cancer

  Inheritance: Unknown Classification: LIMITED Submitted by: ClinGen

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=-0.53).
• BP6: Variant 5-83111035-A-G is Benign according to our data. Variant chr5-83111035-A-G is described in ClinVar as Likely_benign. ClinVar VariationId is 3669022.Status of the report is criteria_provided_single_submitter, 1 stars.
• BP7: Synonymous conserved (PhyloP=2.01 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003401.5. 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
	XRCC4	NM_003401.5	MANE Select	c.147A>G	p.Glu49Glu	synonymous	Exon 3 of 8	NP_003392.1	Q13426-2
	XRCC4	NM_001318012.3		c.147A>G	p.Glu49Glu	synonymous	Exon 3 of 8	NP_001304941.1	Q13426-1
	XRCC4	NM_022406.5		c.147A>G	p.Glu49Glu	synonymous	Exon 3 of 8	NP_071801.1	Q13426-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	XRCC4	ENST00000396027.9	TSL:5 MANE Select	c.147A>G	p.Glu49Glu	synonymous	Exon 3 of 8	ENSP00000379344.4	Q13426-2
	XRCC4	ENST00000511817.1	TSL:1	c.147A>G	p.Glu49Glu	synonymous	Exon 3 of 8	ENSP00000421491.1	Q13426-1
	XRCC4	ENST00000282268.7	TSL:1	c.147A>G	p.Glu49Glu	synonymous	Exon 3 of 8	ENSP00000282268.3	Q13426-2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.88e-7 AC: 1 AN: 1453376 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 722672

African (AFR) AF: 0.00 AC: 0 AN: 32942

American (AMR) AF: 0.0000235 AC: 1 AN: 42592

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25922

East Asian (EAS) AF: 0.00 AC: 0 AN: 39436

South Asian (SAS) AF: 0.00 AC: 0 AN: 83678

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53336

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5746

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1109640

Other (OTH) AF: 0.00 AC: 0 AN: 60084

GnomAD4 genome Cov.: 33

ClinVar

ClinVar submissions

Significance: Likely benign

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	-	1	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.53
CADD	Benign	7.6
DANN	Benign	0.65
PhyloP100		2.0

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

Other links and lift over

hg19: chr5-82406854;