rs1555393172

Variant names:

• chr15-40936658-TCGACGGCCGGA-T
• rs1555393172
• NM_019074.4:c.1679_1689delCGGACGACGGC

Variant summary

Our verdict is Pathogenic. The variant received 10 ACMG points: 10P and 0B. PVS1 PP5_Moderate

The NM_019074.4(DLL4):​c.1679_1689delCGGACGACGGC​(p.Pro560GlnfsTer23) variant causes a frameshift change. The variant was absent in control chromosomes in GnomAD project. It is difficult to determine the true allele frequency of this variant because it is of type DEL_BIG, and the frequency of such variant types in population databases may be underestimated and unreliable. Variant has been reported in ClinVar as Likely pathogenic (★). Variant results in nonsense mediated mRNA decay.

• Frequency: Genomes: not found (cov: 33)
• Consequence: DLL4 NM_019074.4 frameshift
• Clinical Significance: Likely pathogenic criteria provided, single submitter P:1
• Conservation: PhyloP100: 6.11
• Publications: 0 publications found

Genes affected

DLL4 (HGNC:2910): (delta like canonical Notch ligand 4) This gene is a homolog of the Drosophila delta gene. The delta gene family encodes Notch ligands that are characterized by a DSL domain, EGF repeats, and a transmembrane domain. [provided by RefSeq, Jul 2008]

DLL4 Gene-Disease associations (from GenCC):

• Adams-Oliver syndrome 6

  Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P
• Adams-Oliver syndrome

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• aplasia cutis congenita

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Pathogenic. The variant received 10 ACMG points.

• PVS1: Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
• PP5: Variant 15-40936658-TCGACGGCCGGA-T is Pathogenic according to our data. Variant chr15-40936658-TCGACGGCCGGA-T is described in ClinVar as Likely_pathogenic. ClinVar VariationId is 520578.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_019074.4. 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
	DLL4	NM_019074.4	MANE Select	c.1679_1689delCGGACGACGGC	p.Pro560GlnfsTer23	frameshift	Exon 9 of 11	NP_061947.1	Q9NR61

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DLL4	ENST00000249749.7	TSL:1 MANE Select	c.1679_1689delCGGACGACGGC	p.Pro560GlnfsTer23	frameshift	Exon 9 of 11	ENSP00000249749.5	Q9NR61
	DLL4	ENST00000878560.1		c.1652_1662delCGGACGACGGC	p.Pro551GlnfsTer23	frameshift	Exon 9 of 11	ENSP00000548619.1
	DLL4	ENST00000878561.1		c.1223_1233delCGGACGACGGC	p.Pro408GlnfsTer23	frameshift	Exon 6 of 8	ENSP00000548620.1

Frequencies

GnomAD3 genomes Cov.: 33

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

GnomAD4 genome Cov.: 33

ClinVar

ClinVar submissions

Significance: Likely pathogenic

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
1	-	-	Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		6.1

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs1555393172; hg19: chr15-41228856;