rs35268

Variant names:

• chr5-83292677-T-C
• rs35268
• NM_003401.5:c.893+34000T>C

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_003401.5(XRCC4):​c.893+34000T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.181 in 151,896 control chromosomes in the GnomAD database, including 2,729 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.18 (2729 hom., cov: 32)
• Consequence: XRCC4 NM_003401.5 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.386
• Publications: 12 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: Labcorp Genetics (formerly Invitae), G2P, Laboratory for Molecular Medicine
• microcephalic primordial dwarfism-insulin resistance syndrome

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

  Inheritance: AD Classification: LIMITED Submitted by: ClinGen

ACMG classification

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.87).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.251 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
XRCC4	NM_003401.5	c.893+34000T>C		intron_variant	Intron 7 of 7	ENST00000396027.9	NP_003392.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
XRCC4	ENST00000396027.9	c.893+34000T>C		intron_variant	Intron 7 of 7	5	NM_003401.5	ENSP00000379344.4

Frequencies

GnomAD3 genomes AF: 0.181 AC: 27428 AN: 151780 Hom.: 2720 Cov.: 32

Gnomad AFR AF: 0.255

Gnomad AMI AF: 0.0936

Gnomad AMR AF: 0.143

Gnomad ASJ AF: 0.0961

Gnomad EAS AF: 0.147

Gnomad SAS AF: 0.224

Gnomad FIN AF: 0.230

Gnomad MID AF: 0.168

Gnomad NFE AF: 0.142

Gnomad OTH AF: 0.154

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.181 AC: 27470 AN: 151896 Hom.: 2729 Cov.: 32 AF XY: 0.184 AC XY: 13625 AN XY: 74244

African (AFR) AF: 0.255 AC: 10570 AN: 41470

American (AMR) AF: 0.143 AC: 2184 AN: 15232

Ashkenazi Jewish (ASJ) AF: 0.0961 AC: 333 AN: 3466

East Asian (EAS) AF: 0.147 AC: 760 AN: 5174

South Asian (SAS) AF: 0.223 AC: 1076 AN: 4820

European-Finnish (FIN) AF: 0.230 AC: 2433 AN: 10562

Middle Eastern (MID) AF: 0.167 AC: 49 AN: 294

European-Non Finnish (NFE) AF: 0.142 AC: 9648 AN: 67858

Other (OTH) AF: 0.157 AC: 332 AN: 2112

Alfa AF: 0.151 Hom.: 7422

Bravo AF: 0.178

Asia WGS AF: 0.201 AC: 688 AN: 3424

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.87
CADD	Benign	5.9
DANN	Benign	0.49
PhyloP100		0.39
Mutation Taster		=100/0	polymorphism (auto)

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: rs35268; hg19: chr5-82588496;