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GeneBe

6-170283004-C-T

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_005618.4(DLL1):c.2150G>A(p.Cys717Tyr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000342 in 1,461,820 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. C717C) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

DLL1
NM_005618.4 missense

Scores

12
5
1

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.50
Variant links:
Genes affected
DLL1 (HGNC:2908): (delta like canonical Notch ligand 1) DLL1 is a human homolog of the Notch Delta ligand and is a member of the delta/serrate/jagged family. It plays a role in mediating cell fate decisions during hematopoiesis. It may play a role in cell-to-cell communication. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.954

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
DLL1NM_005618.4 linkuse as main transcriptc.2150G>A p.Cys717Tyr missense_variant 10/11 ENST00000366756.4
DLL1XM_005266934.5 linkuse as main transcriptc.1553G>A p.Cys518Tyr missense_variant 10/11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
DLL1ENST00000366756.4 linkuse as main transcriptc.2150G>A p.Cys717Tyr missense_variant 10/111 NM_005618.4 P1O00548-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251394
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135862
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000462
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000342
AC:
5
AN:
1461820
Hom.:
0
Cov.:
34
AF XY:
0.00000138
AC XY:
1
AN XY:
727202
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.0000187
Gnomad4 NFE exome
AF:
0.00000360
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
Alfa
AF:
0.0000468
Hom.:
0
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJan 24, 2024The c.2150G>A (p.C717Y) alteration is located in exon 10 (coding exon 10) of the DLL1 gene. This alteration results from a G to A substitution at nucleotide position 2150, causing the cysteine (C) at amino acid position 717 to be replaced by a tyrosine (Y). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.86
BayesDel_addAF
Pathogenic
0.45
D
BayesDel_noAF
Pathogenic
0.41
Cadd
Pathogenic
27
Dann
Uncertain
1.0
DEOGEN2
Pathogenic
0.89
D
Eigen
Pathogenic
0.85
Eigen_PC
Pathogenic
0.81
FATHMM_MKL
Uncertain
0.97
D
M_CAP
Pathogenic
0.56
D
MetaRNN
Pathogenic
0.95
D
MetaSVM
Pathogenic
0.85
D
MutationAssessor
Uncertain
2.9
M
MutationTaster
Benign
1.0
D
PrimateAI
Pathogenic
0.82
D
PROVEAN
Pathogenic
-6.3
D
REVEL
Pathogenic
0.92
Sift
Uncertain
0.0030
D
Sift4G
Uncertain
0.0060
D
Polyphen
1.0
D
Vest4
0.94
MutPred
0.71
Gain of phosphorylation at C717 (P = 0.0222);
MVP
0.89
MPC
1.1
ClinPred
0.99
D
GERP RS
5.3
Varity_R
0.75
gMVP
0.73

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.10
Details are displayed if max score is > 0.2

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs769642119; hg19: chr6-170592092; API