11-47215081-A-T

Variant names:

• chr11-47215081-A-T
• rs777159854
• NM_000107.3:c.-56A>T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_000107.3(DDB2):​c.-56A>T variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000298 in 1,613,090 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 0.000033 (0 hom., cov: 31)
  • Exomes 𝑓: 0.000029 (0 hom.)
• Consequence: DDB2 NM_000107.3 5_prime_UTR
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.225
• Publications: 0 publications found

Genes affected

DDB2 (HGNC:2718): (damage specific DNA binding protein 2) This gene encodes a protein that is necessary for the repair of ultraviolet light-damaged DNA. This protein is the smaller subunit of a heterodimeric protein complex that participates in nucleotide excision repair, and this complex mediates the ubiquitylation of histones H3 and H4, which facilitates the cellular response to DNA damage. This subunit appears to be required for DNA binding. Mutations in this gene cause xeroderma pigmentosum complementation group E, a recessive disease that is characterized by an increased sensitivity to UV light and a high predisposition for skin cancer development, in some cases accompanied by neurological abnormalities. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2014]

DDB2 Gene-Disease associations (from GenCC):

• xeroderma pigmentosum group E

  Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae), Genomics England PanelApp, ClinGen
• xeroderma pigmentosum

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.74).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000107.3. 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
	DDB2	NM_000107.3	MANE Select	c.-56A>T		5_prime_UTR	Exon 1 of 10	NP_000098.1	Q92466-1
	DDB2	NM_001399874.1		c.-56A>T		5_prime_UTR	Exon 2 of 11	NP_001386803.1	Q92466-1
	DDB2	NM_001399875.1		c.-56A>T		5_prime_UTR	Exon 2 of 11	NP_001386804.1	Q92466-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DDB2	ENST00000256996.9	TSL:1 MANE Select	c.-56A>T		5_prime_UTR	Exon 1 of 10	ENSP00000256996.4	Q92466-1
	DDB2	ENST00000896514.1		c.-56A>T		5_prime_UTR	Exon 2 of 11	ENSP00000566573.1
	DDB2	ENST00000967663.1		c.-56A>T		5_prime_UTR	Exon 2 of 11	ENSP00000637722.1

Frequencies

GnomAD3 genomes AF: 0.0000329 AC: 5 AN: 151986 Hom.: 0 Cov.: 31

Gnomad AFR AF: 0.00

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: 0.0000441

Gnomad OTH AF: 0.00

GnomAD4 exome AF: 0.0000294 AC: 43 AN: 1460984 Hom.: 0 Cov.: 31 AF XY: 0.0000275 AC XY: 20 AN XY: 726840

African (AFR) AF: 0.00 AC: 0 AN: 33470

American (AMR) AF: 0.0000447 AC: 2 AN: 44706

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26122

East Asian (EAS) AF: 0.00 AC: 0 AN: 39666

South Asian (SAS) AF: 0.00 AC: 0 AN: 86236

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53146

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5762

European-Non Finnish (NFE) AF: 0.0000342 AC: 38 AN: 1111518

Other (OTH) AF: 0.0000497 AC: 3 AN: 60358

GnomAD4 genome AF: 0.0000329 AC: 5 AN: 152106 Hom.: 0 Cov.: 31 AF XY: 0.0000403 AC XY: 3 AN XY: 74370

African (AFR) AF: 0.00 AC: 0 AN: 41528

American (AMR) AF: 0.000131 AC: 2 AN: 15290

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5134

South Asian (SAS) AF: 0.00 AC: 0 AN: 4808

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10582

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.0000441 AC: 3 AN: 67980

Other (OTH) AF: 0.00 AC: 0 AN: 2106

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.0000189

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.74
CADD	Benign	12
DANN	Benign	0.81
PhyloP100		-0.23
PromoterAI		-0.029	Neutral

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

dbSNP: rs777159854; hg19: chr11-47236632;